Journal of the Korean Society of Food Science and Nutrition (한국식품영양과학회지)

The Korean Society of Food Science and Nutrition (한국식품영양과학회)
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Antimicrobial Activities of Medicinal Herbs and Seaweeds Extracts Against Microorganisms Isolated from the Rice Warehouses

미곡창고 오염균주에 대한 천연추출물의 항균활성

  • Lee, So-Young (Faculty of Food Science & Biotechnology/Institute of Food Science, Pukyong National University) ;
  • Kim, Jin-Hee (Faculty of Food Science & Biotechnology/Institute of Food Science, Pukyong National University) ;
  • Kim, Koth-Bong-Woo-Ri (Faculty of Food Science & Biotechnology/Institute of Food Science, Pukyong National University) ;
  • Song, Eu-Jin (Faculty of Food Science & Biotechnology/Institute of Food Science, Pukyong National University) ;
  • Kim, Ah-Ram (Faculty of Food Science & Biotechnology/Institute of Food Science, Pukyong National University) ;
  • Park, Sun-Mee (Faculty of Food Science & Biotechnology/Institute of Food Science, Pukyong National University) ;
  • Han, Chung-Soo (Dept. of Biosystems Engineering, Chungbuk National University) ;
  • Ahn, Dong-Hyun (Faculty of Food Science & Biotechnology/Institute of Food Science, Pukyong National University)
  • 이소영 (부경대학교 식품생명공학부/식품연구소) ;
  • 김진희 (부경대학교 식품생명공학부/식품연구소) ;
  • 김꽃봉우리 (부경대학교 식품생명공학부/식품연구소) ;
  • 송유진 (부경대학교 식품생명공학부/식품연구소) ;
  • 김아람 (부경대학교 식품생명공학부/식품연구소) ;
  • 박선미 (부경대학교 식품생명공학부/식품연구소) ;
  • 한충수 (충북대학교 바이오시스템공학부) ;
  • 안동현 (부경대학교 식품생명공학부/식품연구소)
  • Published : 2007.04.30
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Abstract

In order to prevent the quality deterioration of rice from microbial infection, we investigated antimicrobial activities of Morun albalinne, Glycyorrhiza uralensis, Sargassum siliquastrum, and Ecklonin cava against isolated microorganisms from the paddy and warehouses. The major types of the bacteria grown in the paddy and rice warehouses were Sphingomonas paucimobilis, Arthrobacter atrocyaneus, and Bacillus spp. such as Bacillus cereus Additionally Deuteromycetes, Aspergillus spp. and Penicillum spp. were considered as major contaminant microorganisms in the paddy and rice warehouses. As results of the paper disc assay against the isolated microorganisms, the ethanol extracts with Morun albalinne, Glycyorrhiza uralensis, Sargassum siliquastrum, and Ecklonia cava showed effective antimicrobial activities. Especially, Morun albalinne showed the strongest growth inhibition on the isolated bacteria at $0.0025{\sim}0.0075%$.

쌀의 저장 중 미생물학적 요인에 의한 품질 저하를 억제하기 위해 미곡창고 내의 환경과 창고 내에 보관되어 있는 나락에서 곰팡이, 세균 및 효모를 분리 동정한 후 주요 오염균에 대한 상백피, 감초, 꽈배기 모자반 및 감태의 항균효과를 조사하였다. 미곡창고 내의 환경과 나락에서 분리된 주된 오염균은 Sphingomonas paucimobilis와 Bacillus cereus를 비롯한 여러 Bacillus 속 세균과 불완전균류, Aspergillus spp., Penicillium spp.의 곰팡이 그리고 Candida spp.의 효모인 것으로 나타났다 분리된 균주에 대한 천연추출물의 항균력을 측정한 결과 상백피, 감초, 꽈배기 모자반 및 감태 모두 미곡창고 오염균주에 대해 항균력이 있는 것으로 나타났으며, 꽈배기 모자반, 상백피, 감초는 항진균 활성도 있는 것으로 밝혀졌다. 특히 상백피의 항균력이 뛰어난 것으로 나타났는데, $0.0025{\sim}0.0075%$농도에서 주요 오염균의 생육을 억제하였으며, 내 열성 포자를 형성하는 Bacillus cereus의 생육을 0.0025% 농도에서 억제하였다. 이상의 결과를 볼 때 이들 천연추출물을 미곡창고 내에 처리하거나 나락에 직접 처리할 경우 쌀의 저장 중 미생물학적 안전성을 확보할 수 있을 것으로 생각된다.

Keywords

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