Abstract The rice cultivar SCS122 Miura has modern architecture, lodging resistance, late maturity cycle, moderate resistance to blast, high yield potential, long grains and adequate cooking quality. Industrial tests have demonstrated that the grains are suitable for parboiled rice. SCS122 Miura is recommended for all rice-producer regions of the state of Santa Catarina, Brazil.

Abstract SCS121 CL is a second-generation Clearfield(r) rice cultivar with resistance to herbicides of the imidazolinone group. The cultivar has modern plant type, lodging resistance, late maturity cycle, high yield potential, long grains and good cooking quality. The cultivar is recommended to all rice-producer regions of Santa Catarina, Brazil.

The new rice cultivar, SCS118 Marques, was obtained through gamma irradiation of SCSBRS Tio Taka cultivar. SCS118 Marques presents modern architecture, lodging resistance, late maturity cycle, moderate resistance to blast, high yield potential, long grains and very high cooking quality. Industrial tests performed with SCS118 Marques showed that grains are suitable for parboiling and white rice, and it is recommended to all rice-producing regions of Santa Catarina.

Neste estudo, avaliaram-se a distribuição dos Compostos Fenólicos Totais (CFT) e o perfil de ácidos fenólicos, presentes nas frações, solúvel e insolúvel de dez genótipos de arroz (Oryza sativa L.) de pericarpo pigmentado e não pigmentado. Devido à sua elevada capacidade antioxidante, os compostos fenólicos vem sendo apontados como possíveis promotores da saúde. Grande parte corresponde aos ácidos fenólicos presentes no grão sob a forma solúvel (livre e conjugada) e insolúvel (ligada). Na literatura há poucas informações sobre a contribuição dos compostos fenólicos ligados, cujos teores são costumeiramente subestimados. Os CFT foram quantificados pelo método de Folin-Ciocalteau, enquanto os ácidos fenólicos por RP-HPLC. Na fração solúvel dos genótipos pigmentados, os teores de CFT foram variáveis, mas, em média, 5,7 vezes maiores do que nos não pigmentados (média de 3468 e 602 µg eq. Ácido Ferúlico (AF)/g arroz, respectivamente), principalmente devido à presença de antocianinas e proantocianidinas. Na fração insolúvel, os pigmentados apresentaram duas vezes mais CFT do que os não pigmentados (825 e 378 µg eq. AF/g arroz, respectivamente), provavelmente devido à retenção de antocianinas e proantocianidinas, mesmo após cinco extrações consecutivas. Dentre os ácidos fenólicos, o ácido ferúlico foi o principal componente em todos os genótipos estudados, exceto no arroz preto, no qual predominou o ácido protocatecóico.

This study was conducted to evaluate the distribution of total phenolic compounds and phenolic acids in the soluble and insoluble fractions of 10 rice (Oryza sativa L.) genotypes with pigmented or non-pigmented pericarp. These compounds were reported to exert beneficial effects on human health due to their high antioxidant activities. The total phenolic compounds (CFT) in both fractions was determined by the Folin-Ciocalteau method and phenolic acids RP-HPLC with Diode-Array Detection (DAD) in order to analyze phenolic acids. The amount of CFT in the soluble fraction was about 5.7 times higher in pigmented than in non-pigmented genotypes showing mean values of 3468 and 602 µg eq.ferulic acid/g rice, respectively. The presence of proanthocyanidins and anthocianins seems to be responsible for the higher amounts. The average amounts of CFT in the insoluble fraction was two-fold higher in the pigmented than in the non pigmented genotypes (825 e 378 µg eq. ferulic acid/g rice, respectively) probably due to the retention of antocyanidins and proanthocyanidins even after five consecutive extractions. Among the phenolic acids, the ferulic acid was the major phenolic acid found among all genotypes analyzed, except for the black pericarp in which the protocatechuic acid was predominant.