Antimicrobial Characteristics of Edible Medicinal Herbs Extracts

식용가능한 약용식물 추출물의 항균 특성

  • Published : 2002.08.01

Abstract

To develop a natural food preservatives from medicinal herbs (62 species), antimicrobial test was performed with hot water and ethanol extracts against Escherchia coli, Listeria monocytogens and Candida albicans by paper disk method. And its result as a first screening test, 7 kinds of medicinal herbs were selected, and more precise analysis was conducted at last 3 kinds of medicinal herbs was finally selected. Therminalia chebula Retz and Rhus javanica has a broad antimicrobial spectrums and has a low MIC values. In growth inhibition test, they showed a very strong antimicrobial activity aganist Listeria monocytogens. If there has a elaborate approaches in its characteristics and properties, some good result must followed in making a powerful natural antimicrobial preservatives.

식품에 사용가능한 천연식품보존제를 개발하기 위하여 총 62종이 특용작물을 대상으로 실험하였다. 공시된 62종의 특용작물에 대한 물추출물 및 80% 에탄올 추출물을 제조하였으며 Escherchia coli, Listeria monocytogens 및 Candidia albicans의 3종의 미생물을 대상균주로 하여 paper disk method에 의해 항균력을 측정하였으며 그 결과 7종의 특용작물을 1차로 선발하였고 이후 정밀실험을 통하여 복분자 (Rubus coreanus miquel), 가자육(Therminalia chebula Retz), 오배자(Rhus javanica) 3종의 특용작물을 최종 선발하였다. 선발된 3종의 특용작물에 대한 항균 spectrum 측정 결과 가자육과 오배자 추출물이 비교적 넓은 항균 spectrum을 가지고 있었다. 최소성장억제농도인 MIC(minimal inhibition concentration)를 측정한 결과 가자육과 오배자 추출물이 낮은 수치의 MIC를 가지고 있는 것으로 나타났다. 액체배양시 균주의 성장억제에 미치는 영향을 측정한 결과 Listeria monocytogens에 대한 생육억제 활성이 매우 우수한 것으로 나타나 천연 식품보존제로서의 가능성이 있음을 알 수 있었다.

Keywords

References

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