α-Amylase first hydrolyzes starch structures to linear maltooligosaccharides and branched α -limit dextrins, then complete hydrolysis to glucose takes place through the mucosal α -glucosidases. In this study, we hydrolyzed waxy corn starch (WCS) by human pancreatic α -amylase to determine the digestion and structural properties of different size fractions of the branched α-limit dextrins. The α-amylolyzed WCS was separated by size exclusion chromatography (SEC), and the analyzed chromatograms showed four main hydrolyzate fractions. The first three eluted peaks (regions I-III) corresponded to branched α-limit dextrins, while region IV was the linear maltooligosaccharides. Region I, II, and III had multiple (>2), two, and one α-1,6 linkages, respectively, and region I was the most slowly hydrolyzed to glucose by mucosal α-glucosidases (hydrolysis rate: Region I< II < III < IV). This study shows the possibility of producing slowly digestible oligosaccharides that may decrease postprandial glycemic response and control glucose delivery to the body, to address metabolic syndrome-associated diseases.
저자
Byung-Hoo Lee [ 이병호 | Department of Food Science and Biotechnology, Gachon University, Seongnam 13120, South Korea ]
본 학회는 화학, 생화학, 분자생물학, 미생물학, 식품공학, 의학, 약학, 유전공학 및 생물공학, 환경 및 기타 공업 등 전 분야의 탄수화물관련 이론과 기술을 연구 발전시키고 산학협동을 통해 이를 보급하여 국내 관련 산업의 발전 및 국민생활의 과학화에 기여하고자 하며, 이러한 목표와 비젼의 실현을 위해 회원들이 적극적인 참여와 활동을 전개하고자 한다.