文献类型：期刊文献

英文题名：Effect of pullulanase debranching on complexation, structure, digestibility, and release of starch-ascorbyl palmitate inclusion complexes

作者：Zhou, Dingpeng[1];Liu, Shaowei[1];Song, Haoyu[1];Liu, Xue[2];Tang, Xiaozhi[3]

机构：[1]East China Univ Sci & Technol, Dept Biol Engn, State Key Lab Bioreactor Engn, Shanghai, Peoples R China;[2]China Agr Univ, Coll Informat & Elect Engn, Beijing, Peoples R China;[3]Nanjing Univ Finance & Econ, Coll Food Sci & Engn, Nanjing, Peoples R China

年份：2020

卷号：44

期号：11

外文期刊名：JOURNAL OF FOOD PROCESSING AND PRESERVATION

收录：;EI(收录号：20203809181531);WOS:【SCI-EXPANDED(收录号:WOS:000567801800001)】；

基金：Beijing Innovation Consortium of Agriculture Research System, Grant/Award Number: BAIC04-2019

语种：英文

外文关键词：Cyclodextrins - Palmitic acid - Crystallinity

摘要：The effect of pullulanase enzymolysis with different levels (0, 4, 8, and 16 hr) on the inclusion complexes between high-amylose maize starch (HAMS) and ascorbyl palmitate (AP) was investigated. Pullulanase pretreatment encouraged the formation of complexes as the debranching time increased from 0 to 8 hr (the encapsulation efficiency increased to 8.63%), resulting in increased enthalpy change and crystallinity; meanwhile, the retrogradation of starch was restricted (0 and 4 hr). However, over debranching (16 hr) caused the opposite trend due to the interference of short chains. In vitro digestibility analysis suggested that starch digestion was restrained with the increasing debranching level (resistant starch content from 29.37% to 44.59%). The formation of complexes also enhanced the stability of AP against light, heat, and oxidation. Furthermore, all samples exhibited a higher release rate of AP within 1 hr and persistent release curve during 1-10 hr in the simulated small intestine environment. Practical applications Starch-ligand inclusion complexes is a promising technology for protecting ascorbyl palmitate. The debranching of starch is a mature modification technique that can bring about new properties and functionalities. This study showed that the proper debranching of high-amylose maize starch can generate more linear small chains, thereby improving the encapsulate rate of ascorbyl palmitate without reduced stability. Meanwhile, the debranching further reduced the digestibility of starch in complexes which might be a good choice for diabetics. The debranched starch complexes could also be acted as the carrier of ascorbyl palmitate because of the great intestinal targeting, and the different sustained release characteristics depending on the debranching levels could satisfy the requirements of different people. Furthermore, the results of this study could provide some reference for the future research of other starch-bioactive compound complexes.