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http://dx.doi.org/10.3746/jkfn.2002.31.2.204

Quality Characteristics of the Chungkookjang Fermented by the Mixed Culture of Bacillus natto and B. licheniformis  

연규춘 (충주대학교 식품공학과)
김동호 (한국원자력연구소 방사선식품·생명공학연구팀)
김정옥 (세종대학교 가정학과)
육홍선 (세종대학교 가정학과)
조재민 (충주대학교 식품공학과)
변명우 (한국원자력연구소 방사선식품·생명공학연구팀)
Publication Information
Journal of the Korean Society of Food Science and Nutrition / v.31, no.2, 2002 , pp. 204-210 More about this Journal
Abstract
The quality characteristics and sensory evaluation of chungkookjang were investigated. The samples were prepared and fermented by the inoculation of Bacillus strains; B. subtilis, B. natto and B. licheniformis as a single starter, and mixed culture of B. natto and B. licheniformis on the industrialized model system. It was shown that microbial growth, protease activity, contents of amino-and ammonia-nitrogen and contents of organic acid were higher in B. subtilis inoculated sample, and were lower in B. licheniformis inoculated one. General quality characteristics of sample inoculated by mixed culture of B. natto and B. licheniformis took a middle position between each B. natto and B. licheniformis inoculated one. Fifty eight species of odor components were identified. Ethanol, 3-methyl-1-butanol, acetic acid, benzaldehyde and alkyl pyrazines were identified in all samples and most of other flavor components were strain specific. The contents of unpleasant smell components, alkyl pyrazines and benzaldehyde, were lower in B. licheniformis inoculated sample. The sensory evaluations showed that chungkookjang manufactured from mixed culture of B. natto and B.licheniformis was most acceptable. Therefore, results indicated that chungkookjang manufactured from mixed culture of B. natto and B. licheniformis induced better sensory quality than that of the control.
Keywords
chungkookjang; quality characteristics; Bacillus; mixed culture;
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Times Cited By KSCI : 1  (Citation Analysis)
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