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KMID : 0665220150280030493
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Korean Journal of Food and Nutrition
2015 Volume.28 No. 3 p.493 ~ p.498
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Quality Characteristics of Choenggukjang prepared with Germinated Soybeans by the Addition of Smoking Process
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Choi Won-Seok
Park Hwa-Young
Choi Ung-Kyu
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Abstract
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The aim of this study is to investigate the changes in the quality characteristics of cheonggukjang made with germinated soybeans, which is produced by the addition of a smoking process. The L value of smoked cheonggukjang made with germinated soybeans (SCGS) was higher than that of non-smoked cheonggukjang made with non-germinated soybeans (NCNS) and non-smoked cheonggukjang made with germinated soybeans (NCGS). The a value of NCNS was the highest, followed by NCGS and SCGS. The b and △T values had a similar tendency compared with the L value. The amino acids in NCGS were significantly decreased compared with NCNS, whereas no remarkable difference in amino acid content was observed between NCGS and SCGS. The moisture content of NCGS (61.9±0.9%) was increased by more than 8% compared with that of NCNS (53.3±0.7%). The moisture content of SCGS was significantly decreased compared with NCGS, whereas the moisture content of SCGS was higher than that of NCNS. The pH of SCGS was significantly the highest, followed by NCGS and NCNS. The viscous substance content of NCGS was significantly increased compared with that of NCNS. No remarkable difference in viscous substance content was observed between NCGS and SCGS. The number of aerobic bacteria in SCGS was significantly decreased compared with NCGS. The levels of total isoflavone in NCNS, NCGS, and SCGS were 1,573.9±62.5, 1,759.1±65.8, 1,738.0±68.1 mg%, respectively.
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KEYWORD
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cheonggukjang , germination , smoked soybean , isoflavone , viscous substance
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