Inhibitory Effect of Major Food Components on the Activity of Antimicrobial Active Substance from n-Hexane Fraction of Mallotus japonicus Muell on Listeria monocytogenes

식품의 주요 성분이 예덕나무 헥산추출물의 Listeria monocytogenes에 대한 항균활성에 미치는 영향

  • Published : 2000.04.30

Abstract

Inhibitory action of major food components on antimicrobial active substance (linolenic acid) was tested against Listeria monocytogenes ATCC 19111 for 72 hr at $30^{\circ}C$. Linolenic acid (50, 1000 ppm) and n-hexane fraction of Mallotus japonicus Muell (50, 1000 ppm) were added to the broth culture medium containing casein(1%, 3%), soybean oil(1%, 3%) and soluble starch (1%, 3%), respectively. Linolenic acid 1000 ppm and n-hexane fraction 1000 ppm exhibited strongly antimicrobial actions on L. monocytogenes which were not detected viable cell after 24 hr. But casein (3%) and soybean oil (3%) strongly diminished the antimicrobial action of 1000 ppm of n-hexane fraction. Soluble starch (1%, 3%) did not affect the antimicrobial action of 1000 ppm of linolenic acid and n-hexane fraction.

Keywords

casein;soybean oil;soluble starch;L. monocytogenes;linolenic acid