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NTIS 바로가기한국식품조리과학회지 = Korean Journal of Food & Cookery Science, v.30 no.6, 2014년, pp.716 - 725
오송민 (전남대학교 식품영양학과 및 생활과학연구소) , 노준희 (전남대학교 식품영양학과 및 생활과학연구소) , 신말식 (전남대학교 식품영양학과 및 생활과학연구소)
Gelatinization properties and the molecular structure of Korean waxy rice starchesisolated from two japonica types, Sinseonchal, and Dongjinchal, as well as an indica type, Hangangchal 1 were investigated. Sinseonchal is preferred cultivar for making Korean traditional rice cakes and cookies. Sinseo...
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핵심어 | 질문 | 논문에서 추출한 답변 |
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아밀로펙틴의 분자구조는 찹쌀 전분에 어떤 영향을 주는가? | 아밀로펙틴의 분자구조는 찹쌀전분의 평균 중합도(degree of polymerization, DP), 평균 사슬길이(CL), 분지도, 사슬길이 분포 프로파일과 결정형 구조 등의 이화학적 특성을 결정하는 중요한 역할을 담당한다(Wang YJ와 Wang L 2002, Park I 등 2013). 곡류 전분의 팽윤 현상은 아밀로펙틴 함량에 영향을 받으며(Tester RF와 Morrison WR 1990), 아밀로펙틴의 긴 사슬은 이중나선형 구조를 형성할 수 있으며 결정성 부분으로 밀집되어 있어 완전히 분리되기 위해서는 고온이 필요하므로 찰 전분입자는 깨어지기 어렵다(Vandeputte GE 등 2003). | |
대부분 전분의 이화학적 특성과 분자구조에 의해 결정되는 쌀과 쌀가루 제품의 특성은? | 그러므로 찹쌀의 수분흡수력은 멥쌀보다 크며(Jeong EG 등 2008) 쌀가루 제품의 텍스쳐 성질은 호화, 노화 및 리올로지 성질에 의해 기인된다. 쌀과 쌀가루 제품의 식미와 가공품질은 대부분 전분의 이화학적 특성과 분자구조에 의해 결정된다. 전분의 구조와 물리적 성질 사이의 관련성을 이해하는 것은 쌀가루 가공제품의 텍스쳐를 개선하는데 도움을줄 것이다. | |
아시아의 국가들에서 전통음식들인 떡, 과자, 스낵, 뻥튀기, 술과 국수 등을 찹쌀로 만든 이유는? | 아시아의 국가들에서는 많은 전통음식들인 떡, 과자, 스낵, 뻥튀기, 술과 국수 등을 찹쌀로 만들고 있다(Wang YJ와 Wang L 2002). 그 이유는 고 아밀로펙틴 함량에 의한 점착성과 구멍이 있는 텍스쳐를 갖는 높은 팽창력, 우수한 수분보유력과 냉동해동안정성 특성 때문이다(Bao J 등 2004). 찹쌀 낟알은 멥쌀 낟알보다 반투명한 외관과 낮은 밀도가 특징이다(Juliano BO 1979). |
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