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NTIS 바로가기한국식품영양학회지 = The Korean journal of food and nutrition, v.24 no.4, 2011년, pp.622 - 629
진현정 (한양대학교 식품영양학과) , 이상선 (한양대학교 식품영양학과)
This study was performed to investigate the effect of rice bran dietary fiber powder on serum lipid levels, bowel function, and mineral absorption in rats. Four weeks old male Sprague Dawley rats(SD rat) were divided into four groups : control group fed 5% cellulose as a fiber source, RB10 fed 5% of...
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핵심어 | 질문 | 논문에서 추출한 답변 |
---|---|---|
식이섬유란 무엇인가? | 식이섬유는 인간의 소화효소에 의해 가수분해되지 않는 식물세포의 잔여물로 정의되며, 지방과 전분을 제거한 후 뜨거운 물에 용해되는 pectin, gums, 일부 hemi-cellulose 등의 수용성 식이섬유(soluble dietary fiber, SDF)와 cellulose, lignin, 일부 hemi-cellulose 등의 불용성 식이섬유(insoluble dietary fiber, IDF)로 분류할 수 있다(Trowell H 1976). | |
식이섬유는 어떻게 분류할 수 있는가? | 식이섬유는 인간의 소화효소에 의해 가수분해되지 않는 식물세포의 잔여물로 정의되며, 지방과 전분을 제거한 후 뜨거운 물에 용해되는 pectin, gums, 일부 hemi-cellulose 등의 수용성 식이섬유(soluble dietary fiber, SDF)와 cellulose, lignin, 일부 hemi-cellulose 등의 불용성 식이섬유(insoluble dietary fiber, IDF)로 분류할 수 있다(Trowell H 1976). | |
불용성 식이섬유의 섭취가 대장암의 유발을 억제할 수 있는 이유는 무엇인가? | 불용성 식이섬유에는 셀룰로오스와 헤미셀룰로오스가 대부분이며, 셀룰라아제가 분비되지 않기 때문에 소화, 흡수되지 않고 배설되며, 장의 연동운동을 촉진해 변비를 막는다. 이러한 불용성 식이섬유는 장 통과시간을 감소시키고, 변 무게와 배설빈도를 증가시키며, 대장 내용물을 희석시키고 장내 유익균의 증식에 도움을 준다(Cummings JH 2000). 이런 효능으로 발암물질이 대장 세포와 접촉할 시간을 단축시켜 대장암의 유발을 억제할 수 있다는 연구결과도 있다(Trock 등 1990). |
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