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논문 기본 정보

자료유형
학술저널
저자정보
김동선 (순천향대학교) 조형우 (순천향대학교) 김대한 (순천향대학교) 오계헌 (순천향대학교)
저널정보
한국생물공학회 KSBB Journal KSBB Journal 제28권 제1호
발행연도
2013.2
수록면
18 - 23 (6page)

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The purpose of this work was to investigate the several functional characteristics of Lactobacillus sakei JK-17 isolated from long-term fermented kimchi, Muk Eun Ji. Initially, phylogenetic analysis using 16S rRNA sequencing was performed to identify the isolate JK-17, and the strain could be assigned to Lactobacillus sakei and designated as L. sakei JK-17. The strain was registered in GenBank as [JX841311]. The changes of bacterial growth and residual organic acids were monitored and HPLC was used to measure quantitatively two organic acids, lactic acid and acetic acid, produced in the culture during 84 hours of incubation. During the incubation period, several functional characteristics of L. sakei JK-17 were examined. L. sakei JK-17 culture depleted nitrite concentration 94.75%. Antioxidant activity of cultural supernatants of L. sakei JK-17 was approx. 53.8%, and β-galactosidase activities were 0.243 units/mL at pH 7.0 and 0.387 units/ mL at pH 4.1, respectively. The antibacterial activities against food-poisoning causing bacteria were examined with 20-fold concentrated culture supernatants from L. sakei JK-17 and the antibacterial effects were clearly observed against all bacteria tested in this work.

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Abstract
1. 서론
2. 재료 및 방법
3. 결과 및 고찰
4. 결론
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UCI(KEPA) : I410-ECN-0101-2014-400-002408747