Physicochemical properties and tofu quality of soybean cultivar proto
1995
Wang, C.C.R. | Chang, S.K.C.
The objective of this study was to investigate the physicochemical properties and tofu quality of Proto soybean grown at two different lots. The bean size, proximate chemical composition, weight of seed coat, total carbohydrate and nonstarchy polysaccharides (NSP), 11S/7S protein ratio, total and free cysteine, and amino acid patterns of the beans were determined. Tofu was made according to a laboratory method that employed calcium sulfate as a protein coagulant. The yield, texture profile, color, and NSP content of tofu were determined. Proto soybean produced tofu with excellent yields and good tofu characteristics. The two samples differed in size but did not differ in the physicochemical properties and in the yield and firmness of tofu. The sulfur-containing amino acids retained in tofu were only 40-50% of that in the raw soybean.
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