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http://dx.doi.org/10.9799/ksfan.2020.33.6.710

Quality Characteristics of Firm Tofu Made from Various Soybeans  

Sim, Eun-Yeong (Dept. of Central Area Crop Science, National Institute of Crop Science, RDA)
Lee, Yu Young (Dept. of Central Area Crop Science, National Institute of Crop Science, RDA)
Park, Hye-Young (Dept. of Central Area Crop Science, National Institute of Crop Science, RDA)
Choi, Hye-Sun (Dept. of Central Area Crop Science, National Institute of Crop Science, RDA)
Kwak, Jieun (Dept. of Central Area Crop Science, National Institute of Crop Science, RDA)
Kim, Mijung (Dept. of Central Area Crop Science, National Institute of Crop Science, RDA)
Kim, Hong-Sik (Dept. of Central Area Crop Science, National Institute of Crop Science, RDA)
Kim, Jin-Sook (Dept. of Central Area Crop Science, National Institute of Crop Science, RDA)
Publication Information
The Korean Journal of Food And Nutrition / v.33, no.6, 2020 , pp. 710-720 More about this Journal
Abstract
This study was conducted to compare the quality characteristics of firm tofu (coagulant calcium chloride, CaCl2 used) made from eight imported and four domestic soybeans selling in Korean markets. The 100-seed weight of soybeans imported from China and Seonpung cultivated in Korea was the highest at 33.23 g and 32.51 g, respectively. Soybeans imported from the USA (bulk type) showed the lowest at 16.12 g, followed by Ukraine at 16.94 g, and Brazil at 18.51 g. The range of protein and fat in the 12 soybeans was 37.08~41.36% and 18.35~22.17%, respectively. The isoflavone contents were the highest in Daepung2 cultivated in Korea at 3,764.10 ㎍/g and the lowest in soybeans imported from Brazil at 1,439.85 ㎍/g. Tofu yield among the samples was in the following order: Seonpung (235.2%), China (232.0%) Daepung2 (228.7%), Daechan (225.7%), and Brazil (208%). Tofu made with soybeans cultivated in Korea (including from China) showed a higher yield compared to that made from soybeans from seven other countries. In the analysis of the correlation of quality factors of tofu, the hardness of the tofu was correlated with 100-seed weight (r=0.676⁎) and protein content of the soybeans (r=0.837⁎⁎). Tofu yield was correlated with 100-seed weight (r=0.748⁎⁎) and protein content of the soybeans (r=0.583⁎).
Keywords
protein; place of origin; cultivar; yield; texture (hardness); tofu quality; coagulant ($CaCl_2$);
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Times Cited By KSCI : 4  (Citation Analysis)
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