Kenaf methanol 추출물의 가축 주요 병원성 균에 대한 항균효과

Antibacterial Effect of Hiscus cannabinus L. Methanol Extract against Pathogenic Bacteria in Domestic Animals

  • 임정주 (경상대학교 수의학과 (농업생명과학연구원)) ;
  • 김동혁 (경상대학교 수의학과 (농업생명과학연구원)) ;
  • 이진주 (경상대학교 수의학과 (농업생명과학연구원)) ;
  • 김대근 (경상대학교 수의학과 (농업생명과학연구원)) ;
  • 이후장 (경상대학교 수의학과 (농업생명과학연구원)) ;
  • 민원기 (경상대학교 수의학과 (농업생명과학연구원)) ;
  • 박동진 (경상대학교 원예학과(농업생명과학연구원)) ;
  • 허무룡 (경상대학교 원예학과(농업생명과학연구원)) ;
  • 장홍희 (경상대학교 축산학과 (농업생명과학연구원)) ;
  • 이만휘 (경북대학교 수의학과) ;
  • 김석 (경상대학교 수의학과 (농업생명과학연구원))
  • Lim, Jeong-Ju (College of Veterinary Medicine (Insti. of Agric. & Life Sci.), Gyeongsang National Univ.) ;
  • Kim, Dong-Hyeok (College of Veterinary Medicine (Insti. of Agric. & Life Sci.), Gyeongsang National Univ.) ;
  • Lee, Jin-Ju (College of Veterinary Medicine (Insti. of Agric. & Life Sci.), Gyeongsang National Univ.) ;
  • Kim, Dae-Geun (College of Veterinary Medicine (Insti. of Agric. & Life Sci.), Gyeongsang National Univ.) ;
  • Lee, Hu-Jang (College of Veterinary Medicine (Insti. of Agric. & Life Sci.), Gyeongsang National Univ.) ;
  • Min, Won-Gi (College of Veterinary Medicine (Insti. of Agric. & Life Sci.), Gyeongsang National Univ.) ;
  • Park, Dong-Jin (Dept. of Horticulture (Insti. of Agric. & Life Sci.), Gyeongsang National Univ.) ;
  • Huh, Moo-Ryong (Dept. of Horticulture (Insti. of Agric. & Life Sci.), Gyeongsang National Univ.) ;
  • Chang, Hong-Hee (Div. of Applied Life Science (Insti. of Agric. & Life Sci.), Gyeongsang National Univ.) ;
  • Rhee, Man-Hee (College of Veterinary Medicine, Gyeongpuk National Univ.) ;
  • Kim, Suk (College of Veterinary Medicine (Insti. of Agric. & Life Sci.), Gyeongsang National Univ.)
  • 투고 : 2011.03.02
  • 심사 : 2011.04.22
  • 발행 : 2011.04.30

초록

본 시험은 무궁화과에 속하는 초본 식물인 Kenaf (Hibiscus cannabinus L.)를 경상대학교 시험농장에서 2010년 6월 1일 파종하여 같은 해 11월 18일 수확하여 건조 한 후, 꽃 (HCME-F)과 잎 (HCME-L)에서 추출한 메탄올 추출물을 이용하여, 세포 독성 시험 및 주요 병원균에 대한 항균효과를 규명하였다. 항균효과에 사용된 균주는 가축에서 피부 질환, 유방염 및 소화기질병을 유발하는 그람양성균인 St. aureus 와 Str. epidermidis, 그람음성균인 S. typhimurium 과 E. coli 균을 공시균주로 사용하였다. 추출물의 안전성을 평가하기 위해 두 추출물 HCME-F과 HCME-L을 0, 25, 50, 100 및 $200{\mu}g/ml$ 농도로 첨가한 배지에서 RAW 264.7 세포와 24시간 반응 후 세포 독성을 측정해 본 결과, 세포 독성이 인정되지 않았으며, 항균효과 시험결과 그람양성균인 St. aureus와 Str. epidermidis 균에 대하여 1, 50 및 $100{\mu}g/ml$의 추출물 농도 및 반응시간 경과에 따라 항균 효과가 증가되었으나, 그람음성균인 S. typhimurium 과 E. coli 에서는 항균효과가 인정되지 않았다. 종합적으로 Kenaf의 꽃과 잎에서 추출한 메탄올 추출물이 세포에 대한 안전성이 입증되었고, 가축과 사람의 피부 질환 및 유방염의 대표적 그람양성균인 St. aureus와 Str. epidermidis 균에 대한 항균효과를 보여, Kenaf의 꽃과 잎을 이용한 선택적 그람양성균 치료제 및 사료첨가제 개발이 가능할 것으로 판단된다.

Hibiscus cannabinus L. is a plant in the Malvaceae family, that was seeded at June 1st in 2010 and harvested at November 18th. The present study was designated to investigate the safety for host cells, antibacterial effects of Hibiscus cannabinus L. of flower (HCME-F) or leaf (HMEF-L) methanol extract for typical Gram's positive bacteria (St. aureus and Str. epidermidis) or Gram's negative bacteria (S. typhimurium and E. coli). In treatment of different concentrations of HCME-F or HMEF-L (1, 50 and $100{\mu}g/ml$), cytotoxic effects were not shown to RAW 264.7 cells until 24 h incubation. In determination of antibacterial activity of HCME-F or HMEF-L, the antibacterial activities for St. aureus and Str. epidermidis were markedly increased compared to that of untreated control group, but antibacterial activity of HCME-F or HMEF-L for S. typhimurium and E. coli were not changed. Taken together, we demonstrated that methanol extract of HCME-F or HMEF-L showed the safety for RAW 264.7 cells and antibacterial activities for Gram's positive pathogenic bacteria St. aureus and Str. epidermidis. These findings suggest that a methanol extract of Kenaf flower or leaf may be useful alternatives of conventional chemotherapies for dermatitis and mastitis causing Gram's positive pathogens such as Stapylococcus spp. and Streptococcus spp. in domestic animals and humans.

키워드

과제정보

연구 과제번호 : 펄프 생산용 Kenaf를 활용한 양돈분뇨 퇴비화 톱밥 대체기술 개발

연구 과제 주관 기관 : 농림수산식품부

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