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KMID : 0613820010110030284
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Journal of Life Science
2001 Volume.11 No. 3 p.284 ~ p.290
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Changes in Chemical Components of Chungkugiang Prepared with Small Black Bean
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Shon Mi-Yae
Kwon Sun-Hwa
Sung Chan-Ki
Park Seok-Kyu
Choi Sang-Do
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Abstract
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Changes in chemical components of small black bean chungkugjang(SBBC) added with kiwi and radish as foodstuffs to repress off-odor and enhance the quality of SBBC suring fermentation were investigated. Optimal pretreatment conditions of small black bean suitable to the fermentation of chungkugjang were 3 hrs of soaking time 1.5 times of ratio of water to black bean. 1.0 atm of high pressure, 20 min of heating time, cutting and crushing of heat-treated black bean. Moisture content of SBBC was remarkably lower than that of soybean chungkugjang(SBC) as control. Crude protein of SBBC was in the range 23.37∼25.71% and higher than that of SBC, Crude lipid of SBBC was lower than that of SBC. Crude lipid of SBBC added with kiwi and radish paste was decreased than that of SBBC without two foodstuffs. pH of SBBC were rapidly increased to 24 hrs of fermentation and gradually increased thereafter. Total acidity was shown to be reversely decreased as compared to pH tendency. Reducing sugar was increased to 24 hrs of fermentation and then decreased. In SBBC and SBC, potassium was the most abundant followed by phosphorus, magnesium and calcium.
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KEYWORD
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Black bean chungkugjang, proximate components, reducing sugar, minerals, amino type nitrogen, anthocyanin
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