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

The Korean Society of Food Science and Nutrition (한국식품영양과학회)
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Effect of Dandelion (Taraxacum Officinale) Extracts on the Intestinal Microorganisms of Streptozotocin-Induced Diabetic Rats

민들레추출물이 당뇨유발 흰쥐의 장내 미생물 균총에 미치는 영향

  • 박지윤 (영남대학교 식품영양학과) ;
  • 장주연 (영남대학교 식품영양학과) ;
  • 이미경 (영남대학교 식품영양학과) ;
  • 박은미 (영남대학교 식품영양학과) ;
  • 김명주 (대구산업정보대학 식품영양과) ;
  • 손동화 (대구산업정보대학 조리과) ;
  • 정현채 (영남대학교 식품영양학과) ;
  • 조수열 (영남대학교 식품영양학과)
  • Published : 2002.12.01
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Abstract

This study was designed to test the effect of dandelion (Taraxacum officinale) extracts on the intestinal microorganisms of streptozotocin-induced diabetic rats. Male Wistar rats were divided into normal, diabetic control and dandelion extract groups. The extracts were prepared by water, ethylacetate and ether from leaf and root, respectively. Diabetes was induced by injecting streptozotocin (55 mg/kg BW, i.p.) in citrate buffer. The extract was supplemented in 11.45g of raw dandelion / kg diet for 50 days. The growth of Lactobacillus was more enhanced in dandelion leaf-water and leaf-ethylacetate extract group than that of the diabetic control group, whereas the growth of E. coli decreased. Results indicate that the dandelion extracts would be effective to improve the intestinal microorganisms.

민들레의 추출물을 급여한 흰쥐에게 streptozotocin으로 당뇨를 유발하여 장내 미생물 균총에 미치는 영향을 구명하기 위하여 Wistar계의 이유한 웅성 흰쥐 64마리를 난괴법으로 8군으로 나누어 streptozotocin(55 mg/kg BW)과 식이 kg당 11.45g의 민들레가 함유되도록 부위와 분획별로 나누어 식이에 첨가하여 50일간 사육하였다. 당뇨-대조군의 총혐기성균은 14일간 증가하다가 당뇨로 인하여 감소를 나타내었으며 잎 추출물 급여시 50일에는 당뇨-대조군에 비하여 증가되었다. 뿌리에틸아세테이트 추출물 급여군은 당뇨-대조군에 비하여 총혐 기성균수가 많은 것으로 나타났다. 민들레의 잎과 뿌리의 추출물 급여초기인 14일의 총호기성균은 당뇨-대조군에 비하여 높았으나 35일에는 당뇨-대조군에 비하여 낮은 것으로 나타났으며 50일에 총호기성균수의 변화결과는 총혐기성균의 변화양상과 유사한 것으로 관찰되었다. 장내 미생물의 변화는 당뇨가 유발된 50일에 당뇨-대조군에 비하여 민들레 잎-열수 추출물 군과 일-에틸아세테이트 추출물군에서 Lactobacillus 증가가 현저하였으며, E. cofi 감소는 잎과 뿌리의 열수 추출물군과 에틸아세테이트 추출물군이 당뇨-대조군과 유사한 수준이며 특히 열수 추출물군의 E. coli억제효과가 관찰되었다. 본 실험 결과 민들레추출물이 당뇨유발된 흰쥐의 장내 미생물에 유익한 효과로 숙주의 감염에 대한 저항력이 있는 것으로 나타났다.

Keywords

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