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HEPATIC AND SKELETAL MUSCLE TISSUE IMMUNOMETABOLISM IN TRAINED RATS
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Magalhães, Alan José Barbosa

; Camargo Filho, José Carlos Silva

; Mariolani, José Ricardo Lenzi

; Camargo, Regina Celi Trindade

; Oikawa, Sergio Minoru

; Belangero, William Dias

Revista Brasileira de Medicina do Esporte

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2024, Volume 30 elocation e2023_0219

Abstract: En Es Pt | Text: En Es Pt | PDF: En | PDF: Es | PDF: Pt

ABSTRACT Introduction: Physical exercise can be an alternative for preventing and treating the harmful effects of obesity, mainly inflammatory effects on skeletal muscle and liver tissues. However, no consensus exists regarding this purpose's best physical training model. Objective: Evaluate morphological, metabolic, and inflammatory alterations in rats’ skeletal and hepatic muscle tissues caused by aerobic and resistance training. Methods: 24 Wistar rats were divided into sedentary (S), aerobic (AE), and resistance training (R) groups. Blood glucose, total cholesterol, and serum triglycerides were measured periodically. After euthanasia, body mass was measured to calculate the total mass gain during the experiment. High-density lipoprotein (HDL) was measured. Adipose tissue was extracted to calculate its percentage relative to body mass and the liver, soleus, and gastrocnemius muscles for morphological analyses and concentrations of glycogen, lipids, and Tumor Necrosis Factor α (TNF-α). The Kruskall-Wallis test and Dunn's post-test were performed for statistical analysis, adopting p<0.05. Results: Both training models reduced the percentage of adipose tissue, body mass gain, and hepatic TNF-α concentration (p<0.05). AE increased serum HDL, gastrocnemius fiber diameter and reduced the fractal dimension in the soleus (p<0.05). R reduced blood glucose and serum and liver lipids, increased liver and soleus glycogen concentrations, increased gastrocnemius fiber diameter, and decreased TNF-α (p<0.05). Conclusion: Both training models reduced body mass, relative visceral adipose tissue, serum total cholesterol concentration, and liver inflammation. However, resistance training was more effective in promoting metabolic effects in the liver and skeletal muscle and reducing muscle inflammation in rats. Level of Evidence V; Expert Opinion.

RESUMEN Introducción: El ejercicio físico puede ser una alternativa para prevenir y tratar los efectos nocivos de la obesidad, principalmente los efectos inflamatorios sobre los tejidos del músculo esquelético y del hígado. Sin embargo, no existe consenso sobre cuál es el mejor modelo de entrenamiento físico para este fin. Objetivo: Evaluar las alteraciones morfológicas, metabólicas e inflamatorias del entrenamiento aeróbico y de resistencia en sobre los tejidos músculo esqueléticos y hepáticos de ratas. Métodos: 24 ratas Wistar se dividieron en grupos sedentarios (S), aeróbicos (AE) y de entrenamiento de resistencia (R). Se midieron periódicamente glucosa en sangre, colesterol total y triglicéridos. Después de la eutanasia, se midió la masa corporal para calcular la ganancia de masa total durante el experimento. Se midió la lipoproteína de alta densidad (HDL). Se extrajo tejido adiposo para calcular su porcentaje relativo a la masa corporal, así como hígado, músculos sóleo y gastrocnemio para análisis morfológicos y concentraciones de glucógeno, lípidos y Factor de Necrosis Tumoral α (TNF-α). Para el análisis estadístico fueron utilizados Kruskall-Wallis y el post-test de Dunn, adoptando p<0,05. Resultados: Ambos entrenamientos redujeron el porcentaje de tejido adiposo, masa corporal y la concentración de TNF-α hepático (p<0,05). AE aumentó el HDL sérico, el diámetro de la fibra del gastrocnemio y redujo la dimensión fractal en el sóleo (p<0,05). R redujo la glucosa en sangre y los lípidos séricos y hepáticos, aumentó las concentraciones de glucógeno hepático y sóleo, aumentó el diámetro de la fibra del gastrocnemio y disminuyó el TNF-α (p<0,05). Conclusión: Ambos modelos de entrenamiento redujeron la masa corporal, el tejido adiposo visceral relativo, la concentración sérica de colesterol total y la inflamación hepática. El entrenamiento de resistencia demostró ser más eficaz para promover los efectos metabólicos en el hígado y el músculo esquelético, además de reducir la inflamación muscular en ratas. Nivel de Evidencia V; Opinión del Especialista.

RESUMO Introdução: O exercício físico pode se apresentar como uma alternativa para prevenção e tratamento de efeitos deletérios da obesidade, principalmente efeitos inflamatórios sobre os tecidos muscular esquelético e hepático. No entanto, não há consenso quanto ao melhor modelo de treinamento físico para tal finalidade. Objetivos: Avaliar alterações morfológicas, metabólicas e inflamatórias dos treinamentos aeróbico e resistido sobre os tecidos muscular esquelético e hepático de ratos. Métodos: 24 ratos Wistar foram divididos nos grupos sedentário (S), treinamento aeróbico (AE) e resistido (R). Glicemia, colesterol total e triglicerídeos séricos foram mensurados periodicamente. Após a eutanásia, a massa corporal foi mensurada para calcular o ganho total de massa durante o experimento. A lipoproteína de alta densidade (HDL) foi dosada. O tecido adiposo foi extraído para cálculo de sua porcentagem relativa à massa corporal assim como o fígado e os músculos sóleo e gastrocnêmio para as análises morfológicas e das concentrações de glicogênio, lipídios e Fator de Necrose Tumoral α (TNF-α). Para análise estatística, foram utilizados o teste de Kruskall-Wallis e o pós-teste de Dunn, adotando-se p<0,05. Resultados: Ambos os modelos de treinamento reduziram o percentual de tecido adiposo, ganho de massa corporal e concentração hepática de TNF-α (p<0,05). AE aumentou o HDL sérico, o diâmetro das fibras do gastrocnêmio e reduziu a dimensão fractal no sóleo (p<0,05). R reduziu a glicemia e os lipídios séricos e hepáticos, aumentou a concentração de glicogênio hepático e sóleo, aumentou o diâmetro das fibras gastrocnêmicas e diminuiu o TNF-α (p<0,05). Conclusão: Ambos os modelos de treinamento reduziram a massa corporal, o tecido adiposo visceral relativo, a concentração sérica de colesterol total e a inflamação hepática. No entanto, o treinamento resistido mostrou-se mais eficaz em promover efeitos metabólicos no fígado e no músculo esquelético, além de reduzir a inflamação muscular em ratos. Nível de Evidência V; Opinião do Especialista.

https://doi.org/10.1590/1517-8692202430022023_0219i

Immunosuppression with Rituximab in Glomerular Diseases in Adults: Who, How and When?
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Pinto, Raquel Pereira Sousa

; Ferreira, Carolina dos Reis

; Ferreira, André Sotero Araújo

; Milheiro, Joaquim Manuel Leal

; Veiga, Catarina Maia da

; Costa, Maria Luísa de Lemos Ferreira Casimiro da

; Silva, Andreia Raquel Dias da

; Lima, Carla Maria Pereira

; Lemos, Sérgio José da Silva

Portuguese Journal of Nephrology & Hypertension

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jun 2023, Volume 37 N. 2 Pages 68 - 75

Abstract: En | Text: En | PDF: En

ABSTRACT Rituximab, a monoclonal antibody with the ability to bind itself to CD20, leads to a rapid depletion of B-cells (in around 24-72 hours), limiting antibody formation. The marker CD20 does not exist in any other cell type, which makes the action of rituximab specific. This antibody has been used in autoimmune entities such as rheumatoid arthritis and in hematological malignancies, but recently it has gained popularity as an important immunosuppressor in selected kidney diseases. In nephrology, this anti-CD20 antibody had its first indication in anti-neutrophil cytoplasmic antibody-associated vasculitis, but can now be used in primary membranous nephropathy, minimal change disease, lupus nephritis and others. There is also some data that indicates rituximab might have a promising role in other glomerular diseases in the future, but to date evidence is still lacking to recommend its widespread use. The aim of this document is to compile the most recent scientific evidence as to when rituximab should be used in the treatment of various glomerular diseases, and which other may come to benefit from it in the future.

https://doi.org/10.32932/pjnh.2023.07.244

Brazilian Black Women are at Higher Risk for COVID-19 Complications: An Analysis of REBRACO, a National Cohort
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Dantas-Silva, Amanda

; Surita, Fernanda Garanhani

; Souza, Renato

; Rocha, Leila

; Guida, José Paulo

; Pacagnella, Rodolfo

; Tedesco, Ricardo

; Fernandes, Karayna

; Martins-Costa, Sérgio

; Peret, Frederico

; Feitosa, Francisco

; Traina, Evelyn

; Cunha Filho, Edson

; Vettorazzi, Janete

; Haddad, Samira

; Andreucci, Carla

; Correa Junior, Mario

; Dias, Marcos

; Oliveira, Leandro de

; Melo Junior, Elias

; Luz, Marília

; Cecatti, Jose Guilherme

; Costa, Maria Laura

Revista Brasileira de Ginecologia e Obstetrícia

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may 2023, Volume 45 N. 5 Pages 253 - 260

Abstract: En Pt | Text: En Pt | PDF: En | PDF: Pt

Abstract Objective To evaluate the impact of the race (Black versus non-Black) on maternal and perinatal outcomes of pregnant women with COVID-19 in Brazil. Methods This is a subanalysis of REBRACO, a Brazilian multicenter cohort study designed to evaluate the impact of COVID-19 on pregnant women. From February2020 until February 2021, 15 maternity hospitals in Brazil collected data on women with respiratory symptoms. We selected all women with a positive test for COVID-19; then, we divided them into two groups: Black and non-Black women. Finally, we compared, between groups, sociodemographic, maternal, and perinatal outcomes. We obtained the frequency of events in each group and compared them using X2 test; p-values < 0.05 were considered significant. We also estimated the odds ratio (OR) and confidence intervals (CI). Results 729 symptomatic women were included in the study; of those, 285 were positive for COVID-19, 120 (42.1%) were Black, and 165 (57.9%) were non-Black. Black women had worse education (p = 0.037). The timing of access to the health system was similar between both groups, with 26.3% being included with seven or more days of symptoms. Severe acute respiratory syndrome (OR 2.22 CI 1.17–4.21), intensive care unit admission (OR 2.00 CI 1.07–3.74), and desaturation at admission (OR 3.72 CI 1.41–9.84) were more likely to occur among Black women. Maternal death was higher among Black women (7.8% vs. 2.6%, p = 0.048). Perinatal outcomes were similar between both groups. Conclusion Brazilian Black women were more likely to die due to the consequences of COVID-19.

Resumo Objetivo Avaliar o impacto da raça (negra versus não negra) nos desfechos maternos e perinatais de gestantes com COVID-19 no Brasil. Métodos Esta é uma subanálise da REBRACO, um estudo de coorte multicêntrico brasileiro desenhado para avaliar o impacto da COVID-19 em mulheres grávidas. De fevereiro de 2020 a fevereiro de 2021, 15 maternidades do Brasil coletaram dados de mulheres com sintomas respiratórios. Selecionamos todas as mulheres com teste positivo para COVID-19; em seguida, as dividimos em dois grupos: mulheres negras e não negras. Finalmente, comparamos, entre os grupos, os resultados sociodemográficos, maternos e perinatais. Obtivemos a frequência dos eventos em cada grupo e comparamos usando o teste X2; Valores de p <0,05 foram considerados significativos. Também estimamos o odds ratio (OR) e os intervalos de confiança (IC). Resultados 729 mulheres sintomáticas foram incluídas no estudo; desses, 285 foram positivos para COVID-19, 120 (42,1%) eram negros e 165 (57,9%) não eram negros. As mulheres negras apresentaram pior escolaridade (p = 0,037). O tempo de acesso ao sistema de saúde foi semelhante entre os dois grupos, com 26,3% incluídos com sete ou mais dias de sintomas. Síndrome respiratória aguda grave (OR 2,22 CI 1,17–4,21), admissão em unidade de terapia intensiva (OR 2,00 CI 1,07–3,74) e dessaturação na admissão (OR 3,72 CI 1,41–9,84) foram mais prováveis de ocorrer entre mulheres negras. A mortalidade materna foi maior entre as negras (7,8% vs. 2,6%, p = 0,048). Os resultados perinatais foram semelhantes entre os dois grupos. Conclusão Mulheres negras brasileiras tiveram maior probabilidade de morrer devido às consequências da COVID-19.

https://doi.org/10.1055/s-0043-1770133

Salinity-tolerant dwarf cashew rootstock has better ionic homeostasis and morphophysiological performance of seedlings
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Sousa, Valéria F. de O.

; Santos, Gisele L. dos

; Maia, Josemir M.

; Maia Júnior, Sebastião de O.

; Santos, João P. de O.

; Costa, José E.

; Silva, Anselmo F. da

; Dias, Thiago J.

; Ferreira-Silva, Sérgio L.

; Taniguchi, Carlos A. K.

Revista Brasileira de Engenharia Agrícola e Ambiental

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feb 2023, Volume 27 N. 2 Pages 92 - 100

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

RESUMO Considerando a relevância do cajueiro e a limitação imposta pelo estresse salino em regiões semiáridas, o uso de alternativas capazes de mitigar os efeitos deletérios em decorrência da salinidade são de grande importância ao setor produtivo. O uso de plantas enxertadas, principalmente com porta-enxertos de materiais tolerantes, influencia no acúmulo de íons tóxicos nas folhas das mudas enxertadas. Assim, o objetivo deste trabalho foi avaliar características morfofisiológicas e concentração foliar de Na+, K+, Ca+2 de combinações de copa e porta-enxerto de cajueiro anão precoce, contrastantes à salinidade. O experimento foi realizado em delineamento inteiramente casualizado, com cinco repetições, tendo os tratamentos dispostos em arranjo fatorial de 4 × 3, correspondentes a quatro combinações de mudas enxertadas (auto-enxerto CCP 09/CCP 09, CCP 09/CCP 76, auto-enxerto CCP 76/CCP 76 e CCP 76/CCP 09) e a três concentrações de NaCl (0-controle, 50 e 100 mM L-1). Foram avaliados altura, número de folhas, área foliar, massa seca, índice de tolerância e concentração foliar de Na+, K+ e Ca+2 após 30 dias da aplicação das concentrações de NaCl. A combinação copa/porta-enxerto CCP 76/09 apresentou tolerância à salinidade de 50 mM L-1, devido ao aumento da área foliar e número de folhas. A combinação copa/porta-enxerto CCP 76/09 foi mais adequada, pois manteve a concentração foliar de K+ e o menor concentração de Na+.

ABSTRACT Considering the cashew tree’s relevance and the limitations imposed by salinity stress in semi-arid regions, the use of alternatives capable of mitigating the harmful effects due to salinity is of great importance to the production sector. The use of grafted plants, especially with rootstock made of tolerant materials, influences the accumulation of toxic ions in leaves of grafted seedlings. Thus, the objective of this work was to evaluate morphophysiological characteristics and leaf concentrations of Na+, K+ and Ca+2 of combinations of scion and rootstock of early dwarf cashew, contrasting in terms of salinity tolerance. The experiment was carried out in a completely randomized design with five replicates, in a 4 × 3 factorial arrangement, corresponding to four dwarf cashew scion/rootstock combinations (self-graft CCP 09, CCP 09/CCP 76, self-graft CCP 76, and CCP 76/CCP 09) and three NaCl concentrations (0, 50, and 100 mM L-1). Height, number of leaves, leaf area, dry matter, tolerance index and leaf concentrations of Na+, K+ and Ca+2 were evaluated after 30 days of application of NaCl concentrations. The scion/rootstock combination CCP 76/09 showed tolerance to 50 mM L-1, due to the increase of leaf area and number of leaves. The scion/rootstock combination CCP 76/09 was more suitable, as it kept the leaf K+ concentration and had the lowest Na+ concentration.

https://doi.org/10.1590/1807-1929/agriambi.v27n2p92-100

Growth phenotypes of very low birth weight infants for prediction of neonatal outcomes from a Brazilian cohort: comparison with INTERGROWTH
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Cardoso, Viviane Cunha

; Grandi, Carlos

; Silveira, Rita C.

; Duarte, José Luiz Bandeira

; Viana, Maria Cândida Ferrarez Bouzada

; Ferreira, Daniela Marques de Lima Mota

; Alves Junior, José Mariano Sales

; Embrizi, Laís Furlan

; Gimenes, Carolina Boschi

; Mello e Silva, Nathalia Moura de

; Melo, Fernanda Pegoraro de Godoi

; Venzon, Paulyne Stadler

; Gomez, Dafne Barcala

; Vale, Marynéa Silva do

; Bentlin, Maria Regina

; Barros, Marina Carvalho de Moraes

; Bigélli, Laura Emilia Monteiro

; Diniz, Edna Maria de Albuquerque

; Luz, Jorge Hecker

; Marba, Sérgio Tadeu Martins

; Almeida, João Henrique Carvalho Leme de

; Aragon, Davi Casale

; Carmona, Fabio

Jornal de Pediatria

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jan 2023, Volume 99 N. 1 Pages 86 - 93

Abstract: En | Text: En | PDF: En

Abstract Objective: To assess the predictive value of selected growth phenotypes for neonatal morbidity and mortality in preterm infants < 30 weeks and to compare them with INTERGROWTH-21st (IG21). Methods: Retrospective analysis of data from the Brazilian Neonatal Research Network (BNRN) database for very low birth weight (VLBW) at 20 public tertiary-care university hospitals. Outcome: the composite neonatal morbidity and mortality (CNMM) consisted of in-hospital death, oxygen use at 36 weeks, intraventricular hemorrhage grade 3 or 4, and Bell stage 2 or 3 necrotizing enterocolitis. Selected growth phenotypes: small-for-gestational-age (SGA) defined as being < 3rd (SGA3) or 10th (SGA10) percentiles of BW, and large-for-gestational-age (LGA) as being > 97th percentile of BW. Stunting as being < 3rd percentile of the length and wasting as being < 3rd percentile of BMI. Single and multiple log-binomial regression models were fitted to estimate the relative risks of CNMM, comparing them to IG21. Results: 4,072 infants were included. The adjusted relative risks of CNMM associated with selected growth phenotypes were (BNRN/IG21): 1.45 (0.92–2.31)/1.60 (1.27–2.02) for SGA; 0.90 (0.55–1.47)/1.05 (0.55–1.99) for LGA; 1.65 (1.08–2.51)/1.58 (1.28–1.96) for stunting; and 1.48 (1.02–2.17) for wasting. Agreement between the two references was variable. The growth phenotypes had good specificity (>95%) and positive predictive value (70-90%), with poor sensitivity and low negative predictive value. Conclusion: The BNRN phenotypes at birth differed markedly from the IG21 standard and showed poor accuracy in predicting adverse neonatal outcomes.

https://doi.org/10.1016/j.jped.2022.07.007

BRAZILIAN SOCIETY OF HEPATOLOGY UPDATED RECOMMENDATIONS FOR SYSTEMIC TREATMENT OF HEPATOCELLULAR CARCINOMA
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CHAGAS, Aline Lopes

; LEAL, Cassia Regina Guedes

; MELLO, Vivianne Barreto de

; BARROS, Fábio Marinho Do Rego

; BITTENCOURT, Paulo Lisboa

; MATTOS, Angelo A

; AROUCHA, Dayse

; FONSECA, Leonardo G da

; SILVA, Joyce Roma Lucas de

; DOTTORI, Mariana Fonseca

; TEIXEIRA, Rosangela

; MENDES, Liliana Sampaio Costa

; REZENDE, Rosamar Eulira Fontes

; FILGUEIRA, Norma Arteiro

; COUTINHO, Anelisa K

; ARAÚJO NETO, João Marcello de

; COELHO, Henrique Sergio Moraes

; PESSOA, Mario Guimarães

; CHEINQUER, Hugo

; PARISE, Edison Roberto

; FRANÇA, Alex

; ÁLVARES-DA-SILVA, Mário Reis

; CARRILHO, Flair José

; CORAL, Gabriela P

; PINTO, Paulo de Tarso Aparecida

; PEREIRA, Leila M M Beltrão

; PARANÁ, Raymundo

; ALVES, Rogério Camargo Pinheiro

; BRANDÃO-MELLO, Carlos Eduardo

Arquivos de Gastroenterologia

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jan 2023, Volume 60 N. 1 Pages 106 - 131

Abstract: En Pt | Text: En Pt | PDF: En | PDF: Pt

ABSTRACT Hepatocellular carcinoma (HCC) is the third most common cause of cancer-related mortality worldwide. The Brazilian Society of Hepatology (SBH) published in 2020 the updated recommendations for the diagnosis and treatment of HCC. Since then, new data have emerged in the literature, including new drugs approved for the systemic treatment of HCC that were not available at the time. The SBH board conducted an online single-topic meeting to discuss and review the recommendations on the systemic treatment of HCC. The invited experts were asked to conduct a systematic review of the literature on each topic related to systemic treatment and to present the summary data and recommendations during the meeting. All panelists gathered together for discussion of the topics and elaboration of the updated recommendations. The present document is the final version of the reviewed manuscript containing the recommendations of SBH and its aim is to assist healthcare professionals, policy-makers, and planners in Brazil and Latin America with systemic treatment decision-making of patients with HCC.

RESUMO O carcinoma hepatocelular (CHC) é uma das principais causas de mortalidade relacionada a câncer no Brasil e no mundo. A Sociedade Brasileira de Hepatologia (SBH) publicou em 2020 a atualização das recomendações da SBH para o diagnóstico e tratamento do CHC. Desde então, novas evidências científicas sobre o tratamento sistêmico do CHC foram relatadas na literatura médica, incluindo novos medicamentos aprovados que não estavam disponíveis na época do último consenso, levando a diretoria da SBH a promover uma reunião monotemática on-line para discutir e rever as recomendações sobre o tratamento sistêmico do CHC. Um grupo de experts foi convidado para realizar uma revisão sistemática da literatura e apresentar uma atualização, baseada em evidências científicas, sobre cada tópico relacionado ao tratamento sistêmico e a apresentar os dados e recomendações resumidas durante a reunião. Todos os painelistas se reuniram para discutir os tópicos e elaborar as recomendações atualizadas. O presente documento é a versão final do manuscrito revisado, contendo as recomendações da SBH, e seu objetivo é auxiliar os profissionais de saúde, formuladores de políticas e planejadores no Brasil e na América Latina na tomada de decisões sobre o tratamento sistêmico de pacientes com CHC.

https://doi.org/10.1590/s0004-2803.202301000-14

Cowpea strains resistant to CPSMV and CABMV intended for green-grain production
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Santana, Sérgio Rogério Alves de

; Santana, Jackeline Terto da Silva

; Costa, Antonio Félix da

; Carvalho, Rejane Rodrigues da Costa e

; Carvalho Filho, José Luiz Sandes de

Revista Ciência Agronômica

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2023, Volume 54 elocation e20228356

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

RESUMO O feijão-caupi verde é uma importante alternativa para a geração de emprego e renda para os agricultores familiares, contribuindo para expansão de sua produção e consumo. No entanto, fatores bióticos como insetos, fungos, bactérias, nematoides e vírus têm limitado sua produção, destacando-se os vírus Cowpea Severe Mosaic Virus (CPSMV) e Cowpea aphid-borne mosaic virus (CABMV). O controle mais eficiente desses vírus é por meio da utilização de variedades resistentes, porém poucas são as variedades destinadas para a produção de feijão verde que são resistentes. Dessa forma, objetivou-se desenvolver e identificar linhagens superiores de feijão-caupi quanto à resistência simultânea aos vírus CPSMV e CABMV com características associadas à produção de grãos verdes. Foram realizados cruzamentos em casa de vegetação no Instituto Agronômico de Pernambuco-AIP entre os genótipos Sempre Verde Salgueiro (suscetível), CNC-0434 (imune ao CPSMV) e TVu-966 (resistente ao CABMV). A partir dos cruzamentos foram selecionadas 50 linhagens F2:5 com coloração do grão tipo Sempre Verde, sendo avaliada a resistência aos vírus em casa de vegetação e as suas características agronômicas para produção de grãos verdes em experimento na Estação Experimental do AIP em Belém do São Francisco-PE. O delineamento experimental foi em blocos casualizados completos, com três repetições. As linhagens L300.026, L300.039, L300.040 e L300.049 mostraram-se resistentes a ambos os vírus e possuem elevado potencial para a produção de grãos verdes; o índice de seleção de Mulamba e Mock facilitou a seleção de linhagens superiores e promissoras para futuro lançamentos de novas variedades resistentes destinadas à produção de grãos verdes.

ABSTRACT Green cowpea is an important alternative for generating employment and income for family farmers and helps broaden production and consumption of the grain. However, biotic factors such as insects, fungi, bacteria, nematodes and viruses have hampered production, especially the Cowpea Severe Mosaic Virus (CPSMV) and Cowpea Aphid-Borne Mosaic Virus (CABMV). The most efficient control of these viruses is via the use of resistant varieties, but few varieties intended for green-grain production are resistant. As such, the aim of this study was to develop and identify superior strains of cowpea in terms of joint resistance to the CPSM and CABM viruses that show characteristics associated with green-grain production. Crosses were carried out in a greenhouse at the Agronomic Institute of Pernambuco (AIP) between the following genotypes: Sempre Verde Salgueiro (susceptible), CNC-0434 (immune to CPSMV) and TVu-966 (resistant to CABMV). From these crosses, fifty F2:5 strains with the Sempre Verde type of grain colouring were selected, their resistance to the viruses assessed in a greenhouse, and their agronomic characteristics for green-grain production evaluated in an experiment at the Experimental Station of the AIP in Belém do São Francisco, Pernambuco. The experimental design was of completely randomised blocks, with three replications. The L300.026, L300.039, L300.040 and L300.049 strains proved to be resistant to both viruses, with a high potential for green-grain production. The Mulamba-Mock selection index facilitated the selection of superior strains that are promising for the future launch of new resistant varieties destined for the production of green grains.

https://doi.org/10.5935/1806-6690.20230005

Diagnosis of the impact of Covid-19 on artisanal cheese production in the semi-arid region of Brazil
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BEZERRA, Joadilza da Silva

; RANGEL, Adriano Henrique do Nascimento

; MARQUES JÚNIOR, Sérgio

; SALES, Danielle Cavalcanti

; GALVÃO JÚNIOR, José Geraldo Bezerra

; BRITO, Acácio Sanzio de

; MEDEIROS, Pedro Alexandro Azevedo de

; ARAUJO, José Rangel de

; MENDONÇA, Fabio de Souza

Food Science and Technology

Journal Metrics
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2023, Volume 43 elocation e83322

Abstract: En | Text: En | PDF: En

Abstract The objective of this study was to present information on the impacts resulting from Covid-19 on the artisanal coalho cheese production chain about: access to information; socioeconomic; income and government support; healthcare. The interviews were conducted using the Google Forms tool, with milk and artisanal coalho cheese producers in Rio Grande do Norte, Brazil. The producers obtained a lot of information transmitted on television (66%); the majority to adhere to health protocols. There was instability in the production, with an initial need to reduce production resulting from prohibitive measures to trade. The level of demand with regard to the consumer market increased with the quality of milk and cheeses. An allegation of lack of support from the government to maintain the activity was also verified in 78.7% of the interviewees, but 83% had resorted to emergency aid. Therefore, it can be concluded that the challenges imposed by the pandemic are not just sanitary. The study confirmed the need to restructure public services and policies. These results can provide compelling evidence about the rural context in the country.

https://doi.org/10.1590/fst.83322

Insights on seroprevalence of leptospirosis in dogs and cats from people with animal hoarding disorder profile in a semiarid region of Brazil
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Pinheiro, Thuane de Sousa

; Silva, Gabriela Medeiros

; Monteiro, Gabriel Dantas Fernandes

; Portela, Roseane de Araújo

; Castro, Vanessa

; Alves, Clebert José

; Azevedo, Sérgio Santos de

; Santos, Carolina de Sousa Américo Batista

Ciência Rural

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2023, Volume 53 N. 7 elocation 20220263

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

RESUMO: O transtorno de acumulação de animais, principalmente de cães e gatos, é uma questão complexa que ocorre em quase todas as comunidades, sendo necessário o levantamento de dados que contribuam para a compreensão da leptospirose dentro da iniciativa Saúde Única. Com o objetivo de determinar a soroprevalência deLeptospirasp. em cães e gatos provenientes de acumuladores de animais foram utilizados 71 cães e 39 gatos de 33 acumuladores do município de Patos, estado da Paraíba, semiárido do Nordeste brasileiro, utilizando-se o teste de soroaglutinação microscópica (SAM) como teste de diagnóstico. Trinta e oito animais (34,5%; IC 95% = 25,7 - 43,4%) foram sororreativos, sendo 46,5% em cães e 12,8% em gatos (P < 0,01), com maior frequência do sorogrupo Icterohaemorrhagiae em ambas as espécies. A alta soroprevalência encontrada sugere a necessidade de políticas públicas para esta população vulnerável no sentido de prevenir a transmissão de zoonoses.

ABSTRACT: Animal hoarding disorder, especially dogs and cats, is a complex issue that occurs in almost all communities, and it is necessary to collect data that contribute to the understanding of leptospirosis within the One Health initiative. In order to determine the seroprevalence of Leptospirasp., 71 dogs and 39 cats from 33 people with animal hoarding profile in the municipality of Patos, state of Paraíba, semi-arid region of Northeastern Brazil were evaluated by using the microscopic serum agglutination test (MAT) as diagnostic test. Thirty-eight animals (34.5%; 95% CI = 25.7 - 43.4%) were seroreactive, with 46.5% in dogs and 12.8% in cats (P < 0.01), with the highest frequency of the Icterohaemorrhagiae serogroup in both species. The high seroprevalence reported suggests the need for public policies for this vulnerable population in order to prevent the transmission of zoonoses.

https://doi.org/10.1590/0103-8478cr20220263

10.

Genotypic selection of pre-clultivars of carioca and early carioca beans for the Agreste-Sertão of Pernambuco, Brazil
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Nascimento, Maxwel Rodrigues

; Santos, Paulo Ricardo dos

; Costa, Antônio Félix da

; Daher, Rogério Figueiredo

; Oliveira, Tâmara Rebecca Albuquerque de

; Souza, Alexandre Gomes de

; Costa, Kleyton Danilo da Silva

; Silva, Katiane da Rosa Gomes da

; Araújo, Emmanuelle Rodrigues

; Santana, Sérgio Rogério Alves de

; Silva, José Wilson da

Ciência Rural

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2023, Volume 53 N. 6 elocation e20220031

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

RESUMO: A interação genótipo x ambiente representa um grande desafio na identificação e seleção de genótipos responsivos às diversas condições de clima e solo. O objetivo deste trabalho foi avaliar e selecionar pré-cultivares de feijão carioca e feijão carioca precoce com base na adaptabilidade, estabilidade e produtividade de grãos. Na safra 2014 foram conduzidos dois ensaios regionais de competição no estado de Pernambuco: feijão carioca (14 genótipos em Arcoverde, Belém de São Francisco, Caruaru e São João) e feijão carioca precoce (11 genótipos em Araripina, Arcoverde e Caruaru) e na safra de 2015 com feijão carioca precoce (11 genótipos, em Araripina, Arcoverde e Brejão). Os parâmetros foram estimados por meio de modelos mistos e a seleção foi realizada pelo método da Média Harmônica do Desempenho Relativo dos Valores Genéticos (MHPRVG), adotando-se três estratégias: i) seleção com base no valor genético predito, sem interação; ii) seleção com base no valor genético predito, considerando cada local; iii) seleção simultânea quanto à produtividade de grãos, adaptabilidade e estabilidade. Observou-se que os ambientes influenciaram na expressão fenotípica dos genótipos de feijão carioca e carioca precoce, configurando adaptação específica. Os genótipos BRS Notável, BRS Estilo e BRS Pérola, de feijão carioca, e CNFC 15875, BRS Notável e CNFC 15630, de feijão carioca precoce, apresentaram os melhores desempenhos nos ambientes testados, considerando-se, simultaneamente, a adaptabilidade a diferentes condições edafoclimáticas, estabilidade de desempenho e produtividade de grãos.

ABSTRACT: Genotype x environment interactions represent a major challenge in identifying and selecting genotypes responsive to different climate and soil conditions. This research evaluated and selected pre-cultivars of carioca bean and early carioca bean based on adaptability, stability, and grain yield. In the 2014 crop season, two regional competition trials were conducted in the state of Pernambuco: carioca beans (14 genotypes in Arcoverde, Belém de São Francisco, Caruaru and São João) and early carioca beans (11 genotypes in Araripina, Arcoverde, and Caruaru) and, in the 2015 crop season, with early carioca beans (11 genotypes in Araripina, Arcoverde, and Brejão). Parameters were estimated by mixed models, and the selection was performed using the Harmonic Mean of Relative Performance of Genetic Values (HMRPGV) method following three strategies: i) selection based on predicted genetic value with no interaction; ii) selection according to predicted genetic value considering each location; and iii) simultaneous selection for grain yield, adaptability, and stability. The environments influenced the phenotypic expression of the carioca and early carioca bean genotypes, representing a specific adaptation. The genotypes BRS Notável, BRS Estilo and BRS Pérola, of carioca beans, and CNFC 15875, BRS Notável and CNFC 15630, of early carioca beans, had the best results in the environments tested, regarding, simultaneously, adaptability to different soil and climate conditions, performance stability, and grain yield.

https://doi.org/10.1590/0103-8478cr20220031

11.

Electrical Conductivity and Nitrogen:Potassium Ratios from Nutrigation in the Quality of Zucchini Fruits
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Pacheco, Adriano Bicioni

; Duarte, Sergio Nascimento

; Charles, Thaís da Silva

; Nascimento, Jéssica Garcia

; Simões, Ana Laura Toledo

; Campos Júnior, José Eustáquio

; Almeida, Alex Nunes de

; Ricardo, Hugo de Carvalho

; Lopes, Tárcio Rocha

; Jesus, Fernanda Lamede Ferreira de

; Lisboa, Cristiane Fernandes

Brazilian Archives of Biology and Technology

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2023, Volume 66 elocation e23210845

Abstract: En | Text: En | PDF: En

Abstract The demands of high-quality zucchini fruits by the consumer market make studies regarding the improvement of cultivation systems, such as plant nutrition and salinity tolerance. Considering the demands of the consumer market for the high quality of zucchini fruits, it is necessary studies regarding the improvement of production systems for this improvement, such as nutrition and salinity tolerance to plant. Thus, this study aimed to evaluate the zucchini fruits quality characteristics, grown in soilless, under N:K ratios, and levels of electrical conductivity of the nutrient solution. The experiment was conducted in a protected environment in pots with 8.2 dm3 of volumetric capacity filled with commercial substrate. The trial design adopted was randomized blocks, with three replicates, in a 5x3 factorial scheme, with five levels of electrical conductivity (1.0; 2.0; 3.0; 4.0; and 5.0 dS m-1) and three N:K ratios (2:1; 1:1; and 1:2), both in the nutrient solution. The application of the nutrient solution was by fertigation through drip irrigation. Throughout the experiment, variables related to fruit quality and total plant biomass production were analyzed. The increase of the electrical conductivity in the nutrient solution provided an increase in the values of fruits organoleptic properties. Regarding the nutrient solution N:K ratios, the 1:2 ratio provided larger fruits and a higher percentage of water.

https://doi.org/10.1590/1678-4324-2023210845

12.

Cultivation protocol using a coir-based substrate modulates the concentration of bioactive compounds and the antioxidant activity of Passiflora alata Curtis seedlings
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Muniz, Brena Coutinho

; Falcão, Eduarda Lins

; Bastos Filho, Carmelo José Albanez

; Silva, Fábio Sérgio Barbosa da

Ciência e Agrotecnologia

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2023, Volume 47 elocation e014922

Abstract: En Pt | Text: En Pt | PDF: En | PDF: Pt

ABSTRACT The use of coconut coir dust is a low-cost cultivation practice. Thus, this study aimed to determine the effect of coconut coir dust proportion on foliar secondary metabolite biosynthesis and growth of Passiflora alata Curtis (sweet passion fruit). This Passiflora species possess pharmaceutical relevance and the use of organic-based substrates may promote the production of bioactive compounds in the phytomass. An experiment in a greenhouse was set up with three proportions of coir dust mixed with a commercial substrate for seedlings (CSS) (peat-based) (S1= 1:1:1, CSS: sand: coconut coir dust; S2= 1.5:1.5:1, CSS: sand: coconut coir dust and S3= 1:1, sand: CSS) in seven replicates. After 68 days, growth parameters were measured (height, leaf area, number of leaves, stem diameter, and dry matter), and the harvested leaves were used to prepare ethanolic extracts. The total antioxidant activity and production of phenolics, flavonoids, proanthocyanidins, and saponins were assessed. Unexpectedly, the coir dust supply did not favor the growth and production of secondary metabolites, as the best results were observed in plants grown in S3. Moreover, S3 is efficient in optimizing the growth, metabolite content, and antioxidant capacity of P. alata foliar extracts dispensing coir dust supplementation in the substrate. Therefore, adding coir to CSS is not recommended to enhance the production of secondary metabolites and the growth of P. alata seedlings.

RESUMO O uso de pó de coco é uma prática de cultivo de baixo custo. Por isso, o objetivo desta pesquisa foi definir o efeito da proporção de pó de coco para aumentar a biossíntese de metabólitos secundários foliares e o crescimento de Passiflora alata Curtis (maracujazeiro-doce). Essa Passiflora possui relevância farmacêutica e o uso de substratos orgânicos pode promover o aumento da produção de compostos bioativos na fitomassa. Um experimento foi conduzido com três proporções de pó de coco em substrato comercial para mudas (SCM) (à base de turfa) (S1= 1:1, SCM: areia: pó de coco; S2= 1,5 :1,5:1 , SCM: areia: pó de coco e S3= 1:1, areia: SCM), em sete repetições. Após 68 dias, parâmetros de crescimento foram avaliados (altura, área foliar, número de folhas, diâmetro do caule e matéria seca) e as folhas utilizadas para preparar os extratos etanólicos. Com esses extratos, foi avaliada a atividade antioxidante total e a produção de compostos fenólicos, flavonoides, proantocianidinas e saponinas. A adição de pó de coco e substrato comercial para mudas não favoreceu o crescimento e a produção de metabólitos secundários, pois os melhores resultados foram observados em plantas cultivadas apenas em S3. Além disso, esse mesmo substrato foi eficiente para otimizar o crescimento, os teores de metabólitos e a capacidade antioxidante dos extratos foliares de P. alata, dispensando a suplementação de pó de coco no substrato. Portanto, a adição de pó de coco no SCM não é recomendada para aumentar a produção de metabólitos secundários e o crescimento de mudas de P. alata.

https://doi.org/10.1590/1413-7054202347014922

13.

Vernalization temperature and maturation point of seed cloves on garlic production and quality
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Luz, José Magno Queiroz

; Oliveira, Carlos Inácio Garcia de

; Silva, Sérgio Macedo

; Oliveira, Túlio Garcia

; Castoldi, Renata

Ciência e Agrotecnologia

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2023, Volume 47 elocation e015122

Abstract: En Pt | Text: En Pt | PDF: En | PDF: Pt

ABSTRACT Brazilian producers have been seeking to improve garlic productivity and quality via vernalization at negative temperatures. However, more concrete information about the application and effects of this technique on the productivity and quality of noble garlic varieties is lacking. Moreover, there are also questions about the use and influence of seed cloves at different maturation points on this crop’s yield. Therefore, the objective of this work was to evaluate the effects of vernalization temperatures and different maturation points of seed cloves on the yield and quality of noble garlic cultivars. Three experiments were conducted using the Ito cultivar over three garlic planting seasons in Cristalina, GO, Brazil. The experimental design followed a 3 x 3 factorial scheme: three vernalization temperature ranges (-1 to -3 °C; 1 to 3 °C; and 2 to 4 °C) and three seed clove maturation points (normal, early and late). Plant height, aboveground fresh mass, bulbar ratio, and bulb yield and quality were evaluated after harvesting. The negative vernalization temperature had significant results with the highest garlic yields occurring in all three planting seasons, with a considerable increase in the quantity of bulbs with better commercial value (‘class 6’) and a decrease in the quantity of ‘discard’ bulbs. In comparison to the other temperatures, negative vernalization temperatures also yielded higher fresh plants in all evaluated seasons. The normal maturation point resulted in gains in total bulb yield. The use of below-zero vernalization temperatures increased the productivity of the garlic cultivar Ito under the conditions found in Brazil.

RESUMO Os produtores brasileiros têm buscado melhorar a produtividade e a qualidade do alho, aplicando a técnica de vernalização com temperaturas negativas. No entanto, faltam informações mais concretas sobre os efeitos e aplicação desta técnica na produtividade e qualidade do alho nobre. Existem dúvidas também sobre o uso de bulbilhos-sementes com diferentes pontos de maturação e sua influência na produção desta cultura. Portanto, o objetivo do trabalho foi avaliar os efeitos de temperaturas de vernalização, incluindo temperaturas negativas e diferentes pontos de maturação do bulbilho-semente, sobre a produtividade e a qualidade do alho-nobre. Foram conduzidos 3 experimentos, em três épocas de plantio de alho, com a variedade Ito, nas condições de Cristalina, GO, Brasil. O delineamento experimental foi em esquema fatorial 3 x 3, sendo três faixas de temperatura de vernalização (-1 a -3 ºC; 1 a 3 ºC e 2 a 4 ºC) e três pontos de maturação de bulbilho-semente (precoce, normal e tardio). Foram avaliadas altura de plantas, massa fresca da parte aérea e razão bulbar, além de produtividade e qualidade de bulbos, após a colheita. Nas três épocas de plantio, a temperatura negativa de vernalização proporcionou, significativamente, as maiores produtividades de alho, elevando consideravelmente a quantidade de bulbos de melhor valor comercial (‘classe 6’), e reduzindo a quantidade de bulbos do tipo ‘descarte’. As temperaturas negativas de vernalização também proporcionaram maior massa de plantas, em todas as épocas avaliadas. O ponto de maturação normal proporcionou ganhos de produtividade total de bulbos. O uso de temperaturas negativas na vernalização proporciona incrementos na produtividade de alho cultivar Ito, nas condições brasileiras.

https://doi.org/10.1590/1413-7054202347015122

14.

Herd-level based seroprevalence and associated factors for Toxoplasma gondii in cows in the state of Paraíba, Northeastern Brazil
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Maia, Amanda Rafaela Alves

; Bezerra, Roberto Alves

; Silva, Samara Santos

; Álvares, Felipe Boniedj Ventura

; Santos, Carolina de Sousa Américo Batista

; Alves, Clebert José

; Clementino, Inácio José

; Feitosa, Thais Ferreira

; Vilela, Vinícius Longo Ribeiro

; Azevedo, Sérgio Santos de

Revista Brasileira de Parasitologia Veterinária

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2023, Volume 32 N. 2 elocation e017222

Abstract: En Pt | Text: En Pt | PDF: En | PDF: Pt

Abstract We aimed to determine the herd and animal levels seroprevalence and associated factors for Toxoplasma gondii infections in cattle from the state of Paraíba, Northeastern Brazil. Herds (n = 434) and cows aged ≥ 24 months (n = 1,895) were randomly selected, and serum samples were tested with the immunofluorescence antibody test (IFAT) using as cutoff of 64. Of the 434 farms investigated, 197 had at least one seropositive cow (prevalence of 49.0%; 95% CI = 44.3%-53.8%), and the prevalence at animal level was 18.0% (95% CI = 5.3%-21.1%). The antibody titers ranged from 64 to 1024, with the most frequent titers being 64 (10.8%) and 128 (3.7%). The risk factors identified were property located in Sertão region (odds ratio [OR] = 3.07), property located in Agreste/Zona da Mata regions (OR = 2.00), animal purchasing (OR = 2.68), herd size of 34-111 animals (OR = 2.91) and herd size > 111 animals (OR = 6.97). The results suggest the wide distribution of T. gondii infections in cattle throughout the state of Paraíba, and the risk factors identified are not possible to correct.

Resumo Objetivou-se determinar a soroprevalência do rebanhos e de animais e os fatores associados à infecção por Toxoplasma gondii em bovinos do estado da Paraíba, Nordeste do Brasil. Rebanhos (n = 434) e vacas com idade ≥ 24 meses (n = 1.895) foram selecionados aleatoriamente, e as amostras de soro foram testadas com o teste de imunofluorescência (RIFI), usando-se como ponto de corte 64. Das 434 fazendas investigadas, 197 tiveram pelo menos uma vaca soropositiva (prevalência de 49%; IC 95% = 44,3%-53,8%), e a prevalência em nível de animais foi de 18% (IC 95% = 5,3%-21,1%). Os títulos de anticorpos variaram de 64 a 1024, sendo os títulos mais frequentes 64 (10,8%) e 128 (3,7%). Os fatores de risco identificados foram na propriedade localizada na região do Sertão ("odds ratio" [OR] = 3,07), na propriedade localizada na região do Agreste/Zona da Mata (OR = 2,00), na compra de animais (OR = 2,68), no tamanho do rebanho de 34-111 animais (OR = 2,91) e no tamanho do rebanho > 111 animais (OR = 6,97). Os resultados sugerem a ampla distribuição de infecções por T. gondii em bovinos em todo o estado da Paraíba, e os fatores de risco identificados não são passíveis de correção.

https://doi.org/10.1590/s1984-29612023025

15.

Physical, chemical and sensory implications of pequi (Caryocar brasiliense Camb.) sweet bread made with flour, pulp and fruit by-product
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CUNHA, MARIANA C. DA

; TERRA, LAILA H.

; CAMPOS E SOUSA, PIÊTRA

; VILELA, DAIANA R.

; OLIVEIRA, ANA LÁZARA

; SILVA, JÉSSYCA S.

; SIMÃO, SÉRGIO DOMINGOS

; PEREIRA, JOELMA

; ALVES, JOSÉ GUILHERME L.F.

; CARVALHO, ELISÂNGELA ELENA N. DE

; VILAS BOAS, EDUARDO V.B.

Anais da Academia Brasileira de Ciências

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2023, Volume 95 N. 2 elocation e20201550

Abstract: En | Text: En | PDF: En

Abstract This study aimed to develop and evaluate bread with the use of pulp and flours of pequi, in partial replacement of water and wheat flour, to develop a bakery product with good technological, nutritional and sensorial qualities. The pequi husk and pulp flours were obtained by means of a thermal pre-treatment, oven drying and standardization of the dry material. Whereas, the bread formulation was defined through the baker’s formulation. Besides, the dehydration process caused significant changes (p<0.05) in the L* value and chromaticity (C*), mainly of the flours (husk and pequi pulp), such changes are due to non-enzymatic oxidative processes and pigment degradation, especially carotenoids. The effect of the substitution of ingredients (wheat flour and water) by husk and pulp flours and pequi pulp contributed to the increase in lipid, crude fiber, nitrogen-free extract and energy value content. However, the substitution promoted changes in the attributes of color and textural properties, such as increased hardness, chewiness and cohesiveness. Nevertheless, all formulations showed good sensory acceptance and thus, pequi sweet breads can be implemented in school meals for contributing and meeting the nutritional recommendations established by the School Feeding Brazilian Program (PNAE).

https://doi.org/10.1590/0001-3765202320201550

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For example, if you want to search for articles about
cases of dengue in Brasil in 2015, use:
ti:dengue and publication_year:2015 and aff_country:Brasil

See below the complete list of search indexes that can be used:

Index code	Element
ti	article title
au	author
kw	article keywords
subject	subject (title words, abstract and keywords)
ab	abstract
ta	journal short title (e.g. Cad. Saúde Pública)
journal_title	journal full title (e.g. Cadernos de Saúde Pública)
la	publication language code (e.g. pt - Portuguese, es - Spanish)
type	document type
pid	publication identifier
publication_year	publication year of publication
sponsor	sponsor
aff_country	country code of the author's affiliation
aff_institution	author affiliation institution
volume	article volume
issue	article issue
elocation	elocation
doi	DOI number
issn	journal ISSN
in	SciELO colection code (e.g. scl - Brasil, col - Colômbia)
use_license	article usage license code

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