Antibacterial and Anticancer Effects of Kimchi Extracts Prepared with Monascus purpureus Koji Paste

홍국첨가 김치추출물의 항균활성 및 암세포 증식억제 활성

  • Published : 2005.08.31

Abstract

Kimchi was prepared with 2.5% and 5% Monascus purpureus Koji(MPK) paste(20%), fermented at $10^{\circ}C$ for 15 days, and sampled at 3-day intervals during storage. Samples were extracted using 80% ethanol. Ethanol extracts of kimchi prepared with MPK paste (MPK kimchi extracts) and control kimchi extracts at 1mg/mL showed 40% decrease in proliferation of cancer cells, such as AGS, KATOIII, HepG2, and Hela. MPK kimchi extracts showed highest cytotoxic effect against cancer cells compared with control at 2mg/mL. Antibacterial effect of MPK kimchi extracts decreased during fermentation, and was higher than that of control kimchi extracts during fermentation, particularly after six days. The 5% MPK kimchi extracts showed higher antibacterial activity against Escherichia coli O157:H7 and Vibrio parahaemolyticus than other groups. Results indicate kimchi added with M. purpureus Koji paste has stronger antibacterial and anticancer effects in vitro than control kimchi.

Keywords

kimchi;Monascus purpureus;antibacterial activity;anticancer activity

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