• Title/Summary/Keyword: Ethanol extract of Schizandra chinensis(SC)

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오미자추출물의 Listeria Monocytogenes에 대한 항균효과

  • 이신호;임용숙
    • Microbiology and Biotechnology Letters
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    • v.25 no.5
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    • pp.442-447
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    • 1997
  • To development food preservative, antimicrobial activities of Schizandra chinensis (SC) against Listeria monocytogenes Scott A, L. monocytogenes Brie I and L. monocytogenes ATCC 19111 were investigated. The growth of L. monocytogenes Scott A, L. monocytogenes Brie I and L. monocytogenes ATCC 19111 was inhibited apparently in Tryptic Soy Broth (TSB) containing 1% SC at 35$\circ$C and it was found that these had antibacterial effects against a broad spectrum of pathogenic bacteria such as S. aureus ATCC 29737, B. subtilis KCTC 1021, E. coli ATCC 11775. The growth of L. monocytogenes was also inhibited about 3 to 5 log$_{10}$ cycle by 0.1% of three fractions of the alcohol extract such as ether, ethyl acetate and butanol. Acidic, weakly acid and neutral fraction of ether fraction showed inhibitory properties against L. monocytogenes.

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Effect of Medicinal Herbs' Extracts on the Growth of Lactic acid bacteria isolated from Kimchi and Fermentation of Kimchi (한약재 추출물이 김치 관련 유산균의 성장과 김치의 숙성에 미치는 효과)

  • Lee, Shin-Ho;Choi, Woo-Jeong
    • Korean Journal of Food Science and Technology
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    • v.30 no.3
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    • pp.624-629
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    • 1998
  • This studies were carried out to investigate antimicrobial activity of 35 kinds of medicinal herbs against lactic acid bacteria isolated from home-made Kimchi. The most isolated lactic acid bacteria were inhibited by ethanol extract of various medicinal herbs such as Schizandra chinensis (SC), Salvia miltiorrhiza (SM), Glycyrrhiza uralensis (GU), Lithospermum erythrorhizon (LE) and Sophrora flavescens AITON (SF). But Cnidium monnier, Pinus densiflora, Paeonia suffruticosa, Acanthopanax sessiliflorum and Rhus chinensis inhibited the growth of only a few isolated lactic acid bacteria. The pH of Kimchi containing 1% of medicinal herbs extracts such as SM, GU, LE and SF was higher than that of control during fermentation for 25 days at $10^{\circ}C$, respectively. Titratable acidity and viable cells of total bacteria and lactic acid bacteria of the Kimchi were lower than that of control during fermentation. The sensory quality (taste, flavor and overall acceptability) of SM, GU, and LE added Kimchi was similar to that of control at 10th day of fermentation. But Sophrora flavescens AITON added Kimchi decreased significantly its sensory quality compared with control(P<0.05).

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