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KMID : 0665420050200060633
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Korean Journal of Food Culture
2005 Volume.20 No. 6 p.633 ~ p.637
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Quality Characteristics of Tofu Added with Black Soybean Hull Powder
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Kim Jean
Jeon Jeong-Ryae
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Abstract
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The effects of adding hull powders of black soybean on quality characteristics of tobu were studied. Proximate composition of the black soybean hull powders was crude ash, crude protein, crude fat, and carbohydrate at 2.60, 11.35, 2.18, and 73.97%, respectively. The addition of 5% black soybean hull powder decreased the production of whey and consequently increased the yield of tobu. Texture properties of evaluation hardness, adhesiveness, chewiness were the best in tobu which was made with 5% black soybean hull powders. Sensory evaluation showed texture, firmness were not significantly different among tobu with yellow soybean, black soybean, and added to 0.5% black soybean hull powders. At the beginning of the period of storage, there were not differences of microbial cell count as increasing black soybean hull powders, but observed after passing 5 days. The results of total microbial cell count showed that adding 5% black soybean hull powders in processing tobu extend storage time.
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KEYWORD
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yellow soybean, black soybean, 0.5% black soybean hull powder, tobu
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