SciELO - Scientific Electronic Library Online

 
vol.20 issueUNICOEffects of irrigation ano season of growth on fineness and tensile strength of ramie fiberChemical composition of garden bean plant and the uptake of nutrients from the stage of blooming to maturity author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand

Journal

Article

Indicators

Related links

Share


Bragantia

Print version ISSN 0006-8705

Bragantia vol.20 no.unico Campinas  1961

http://dx.doi.org/10.1590/S0006-87051961000100039 

Qualidades organolépticas de purês de batatinhas procedentes de culturas tratadas com inseticidas

 

Application of insecticides and their influence on the potato puree flavor

 

 

Ruth dos Santos GarrutiI; Antonieta PigattiII; Antônio OrlandoII

IEngenheiro-agrônomo, Seção de Tecnologia Agrícola, Instituto Agronômico
IIEngenheiros-agrônomos, Seção de Inseticidas, Instituto Biológico de São Paulo

 

 


RESUMO

Resultados significativos foram obtidos na análise do sabor de amostras de purês preparados com batatinhas procedentes de ensaios de aplicação de vários inseticidas no solo, na folhagem e em batatas-semente.
Em 1959, dos inseticidas aplicados no solo (BHC, Heptaclor, Aldrin, Parathion e Lindane) apenas o BHC imprimiu sabor estranho bastante pronunciado semelhante a môfo, diferindo da testemunha ao nível de 1%.Para Heptaclor e Aldrin não foram verificadas alterações de sabor; Lindane e Parathion apresentaram leves odores estranhos, semelhantes a medicamento. Disyston, aplicado nas batatas-semente, e Metasystox, na folhagem, imprimiram ao purê sabor ardido e odor a remédio, mostrando-se inferiores, respectivamente, aos níveis de 5 e 1%. tanto à testemunha, tratada com carvão, como ao item sem qualquer tratamento. Parathion, aplicado na folhagem, comparado com as mesmas testemunhas, não apresentou diferenças significativas.
Em 1960, dos inseticidas aplicados no solo, apenas Lindane, em dose normal e dobrada, diferiu da testemunha ao nível estatístico de 1%, apresentando sabor estranho, semelhante a môfo. Heptaclor, Aldrin e Toxafeno. em doses normal e dobrada, não diferiram da testemunha. classificando-se o sabor do primeiro como regular e dos dois últimos como bom.


SUMMARY

Organoleptic tests were carried out in 1959 and 1960 to determine the possible occurrence of off-flavor in potato tubers, caused by the application of insecticides to the soil where the plants were grown, on the seed, and on the plant leaves. In 1959 the treated samples were compared against the control by the triangular test; in 1960, in a lattice square 3x3 with four replications.
The insecticides applied to the soil in 1959 were as fallows: BHC (gamma-isomer), Heptaclor, Aldrin, Parathion, and Lindane. BHC induced a very strong mold-like «rmusty» off-flavor, significant in relation to the control at the 1% level. Parathion and Lindane induced an unidentified off-flavor, called by the testers as a medicin odor, but not differing statistically from the control; Heptaclor and Aldrin did not confer any off-flavor.
Also in 1959 the samples from the plots which received seed treatment with Disyston and leaf spraying with Rhodiatox and Metasystox were compared with a control to which charcoal had been added and with another, without theatment. The results were statistically significant in relation to the control for Disyston and Matasystox, but not for Rhodiatox. Both Disyston and Metasystox conferred a medicin odor and a slight fiery taste to the puree.
The 1960 insecticides, applied in normal and double dosages, were Lindane, Toxafeno, Heptaclor, and Aldrin. Both dosages of Lindane conferred the same musty off-flavor to the potato puree, this results differing from the control and normal toxafeno at the 1% level. The other treatments were not statistically different from the control.

 

 

Texto completo disponivél apenas em PDF.

Full text available only in PDF format.

 

 

LITERATURA CITADA

1. BAILEY, J. S. ESSELEN, J. W. B. & WHEELER E. H. off-flavors in peaches sprayed with benzene hexachloride, J. econ. Ent. 42:774-76. 1949.         [ Links ]

2. COCHRAN, W. C. & COX, G. M. Experimental Designs. New York, John Wiley & Sons, Inc., 1949.         [ Links ]

3. GREENWOOD, M. L. & TICE, J. M. Palatability tests on potatoes grown in soil treated with the insecticides benzene hexachloride, chlordane, and chlorinated camphene. J. Agric. Res. 78:477-82. 1949.         [ Links ]

4. MACLINN, W. A., REED, J. P. & CAMPBELL J. C. Flavor of potatoes as influenced by organic inseticides. Amer. Potato Journ. 27:207-13. 1950.         [ Links ]

5. ORLANDO A. & PIGATTI, A. Tratamentos de tubérculos de batatinha com inseticidas sistêmicos para o contrôle de pulgões (Homoptera: aphididae). Arquivos do Instituto Biológico. 26:153-160. 1959.         [ Links ]

6. GARRUTI, R. S. Determinação de resíduos e eventuais alterações de gôsto, em tubérculos de batatinha, cultivados em solo tratado com inseticida. [No prelo]         [ Links ] .

7. ROESSLER, E. B., WARREN, J. & GUYMON, J. F. Significance in triangular taste tests. Food Research, 13(6):503-505. 1948.         [ Links ]

 

 

Recebido para publicação em 20 de julho de 1961.

Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License