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Pesquisa Agropecuária Brasileira

versão impressa ISSN 0100-204Xversão On-line ISSN 1678-3921

Resumo

SILVA, Josemeyre Bonifácio da; CARRAO-PANIZZI, Mercedes Concórdia  e  PRUDENCIO, Sandra Helena. Chemical and physical composition of grain-type and food-type soybean for food processing. Pesq. agropec. bras. [online]. 2009, vol.44, n.7, pp.777-784. ISSN 0100-204X.  https://doi.org/10.1590/S0100-204X2009000700019.

The objective of this work was to evaluate the chemical and physical characteristics of grains of soybean (Glycine max) cultivars for food processing. The soybean cultivars evaluated were: grain-type - BRS 133 and BRS 258; food-type - BRS 213 (null lipoxygenases), BRS 267 (vegetable-type) and BRS 216 (small grain size). BRS 267 and BRS 216 cultivars showed higher protein content, indicating that they could promote superior nutritional value. BRS 213 cultivar showed the lowest lipoxygenase activity, and BRS 267, the lowest hexanal content. These characteristics can improve soyfood flavor. After cooking, BRS 267 cultivar grains presented a higher content of aglycones (more biologically active form of isoflavones) and oleic acid, which makes it proper for functional foods and with better stability for processing, and also showed high content of fructose, glutamic acid and alanine, compounds related to the soybean mild flavor. Because of its large grain size, BRS 267 is suitable for tofu and edamame, while small-grain-sized BRS 216 is good for natto and for soybean sprouts production. BRS 216 and BRS 213 cultivars presented shorter cooking time, which may be effective for reducing processing costs.

Palavras-chave : Glycine max; amino acids; fatty acids; hexanal; isoflavones; lipoxygenases; sugars.

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