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NTIS 바로가기한국식품과학회지 = Korean journal of food science and technology, v.46 no.2, 2014년, pp.135 - 142
백혜림 (서울대학교 농생명공학부) , 김하람 (서울대학교 농생명공학부) , 김경미 (농촌진흥청 국립농업과학원 농식품자원부) , 김진숙 (농촌진흥청 국립농업과학원 농식품자원부) , 한귀정 (농촌진흥청 국립농업과학원 농식품자원부) , 문태화 (서울대학교 농생명공학부)
Physicochemical, pasting, and digestion properties of sweet potato starches from 11 Korean cultivars were investigated. Starch granules were variably oval, round, polygonal, spherical, and bell-shaped, and of 10.2-15.3
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핵심어 | 질문 | 논문에서 추출한 답변 |
---|---|---|
영양학적으로 전분은 어떻게 분류되는가? | 영양학적으로 전분은 소화되는 속도에 따라 RDS (rapidly digest-ible starch), SDS (slowly digestible starch), RS (resistanTstarch)의 3가지로 분류된다(4). RDS는 당뇨병, 심혈관 질환 및 비만에 영향을 미치는 것으로 알려진 당지수(glycemiCindex)와 관련되어 있다(5). | |
고구마 전분에서 팽윤력을 결정하는 주요 요소는? | 전분을 구성하는 분자는 수소 결합에 의해 미셀 형태로 결정성 다발을 이루어 존재하므로(30) 입자 내 미셀망의 강도와 특성은 전분의 팽윤력을 결정하는 주요한 요소이다. 전분의 팽윤력은 전분을 함유하는 식품의 호화, 유변학적 특성 등에 영향을 미치며(31), 고도로 팽윤된 입자는 전분 페이스트의 강도를 감소시키는 것으로 알려져 있다(32). | |
RS는 인체에 어떤 영향을 미치는가? | SDS는 인체에 글루코스를 더 오래 안정적으로 공급해주는 역할을 한다(6). 인체 생리적으로 RS는 식이섬유와 마찬가지로 장내 미생물에 의해 발효되어 butyrate를 생성함으로써 대장 환경에 유익한 영향을 미친다. 또한 Sajilata 등(7)에 의하면 RS는 대장암을 예방하고 혈당 및 콜레스테롤 수치를 낮추는 효과를 가지고 있으며, 지방질의 축적을 저해하고 무기질의 흡수를 증가시킨다. |
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