Food Science and Preservation (한국식품저장유통학회지)

The Korean Society of Food Preservation (한국식품저장유통학회)
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Antimicrobial Effect of Methanol Extracts from Some Medicinal Herbs and the Content of Phenolic Compounds

약용식물 추출물에 대한 항미생물 활성 검색과 폴리페놀 함량

  • 문지숙 (목포대학교 식품산업기술연구센터(RRC)) ;
  • 김선재 (목포대학교 생명공학) ;
  • 박윤미 (목포대학교 생명공학) ;
  • 황인식 (목포대학교 생명공학) ;
  • 김의형 (목포대학교 생명공학) ;
  • 박정욱 (목포대학교 식품산업기술연구센터(RRC) ;
  • 박인배 (목포대학교 식품산업기술연구센터(RRC) ;
  • 김상욱 (목포대학교 생명공학) ;
  • 강성국 (목포대학교 식품산업기술연구센터(RRC))
  • Published : 2004.06.01
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Abstract

Methanol extracts were prepared from 32 medicinal herbs of the extracts were tested their microbial inhibition activities against food borne pathogens and/or food poisoning microorganisms, food-related bacteria and yeast. Methanol extracts of Cinnamomum cassia, Paeonia suffruticosa, Alnus japonica, Eugenio caryophyllata and Illicium verum exhibited antimicrobial activity for the microorganisms tested, except lactic acid bacteria and yeast. Minimum inhibitory concentrations(MIC) were about 5 mg/mL for Bacillus subtilis, Staphylococcus epidermidis and Pseudomonas aeruginosa. Cell growth of lactic acid bacteria was inhibitied, but greatly on Leuconostoc mesenteroides. The phenolic compound contents were 10.98 mg/g, 10.31 mg/g, 8.55 mg/g and 6.69 mg/g in Thea sinensis, Eugenia caryophyllata, Alnus japonica and Artenisia capillaris, respectively. Antimicrobial activity appeared to be related to phenol compound content in medicinal herbs. The methanol extracts of medicinal herbs could be suitable for the development of a food preservative.

다양한 기능성을 갖는 생약재 32종을 대상으로 천연보존료 개발의 일환으로 메탄올로 추출한 항균활성 물질을 몇 종의 병원균과 식중독균, 식품과 관련이 있는 세균, 젖산균 및 효모 등 12종의 균주 B. subtilis, M. luteus, Sta aureus, Sta. epidermidis, Strep. mutans, E. coli, Pse. aeruginosa, Sal. typhimurium, V. vulnificus, Lac. brevis, Leu. mesenteroides, Sacch. cerevisiae에 대하여 항균활성을 검색하였으며, 항균력이 강한 생약재 추출물은 최소저해농도(MIC)를 측정하였다. 검색한 결과 계피, 목단, 적양, 정향, 팔각향 등의 메탄올 추출물은 12균주 중 세균에 대하여 항균활성이 강하였으나, 젖산균 및 효모에 대해서는 낮은 항균활성을 보였다. 최소저해농도는 B. subtilis에 대해 강한 증식억제효과를 보였고, Sta. epidermidis나 Pse. aeruginosa에 대해서도 거의 모든 추출물이 저해활성을 나타내었다. 하지만 항균활성 측정시 거의 저해가 없었던 Lue. mesenteroides도 대부분의 추출물에서 억제 효과를 나타내 항균성과는 약간 다른 결과를 보였다. 생약재 중 강한 항균력을 보인 녹차, 정향, 적양, 인진호 등은 폴리페놀 함량이 약 7 mg/g 이상으로 높아 이들 페놀성 물질들이 항균활성에 많은 영향을 준 것으로 사료된다. 따라서 여러 미생물에 의해 변패될 수 있는 식품에서 천연보존료로의 이용이 가능할 것으로 생각된다.

Keywords

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