粮油食品科技2024，Vol.32Issue(2)：14-20,7.DOI:10.16210/j.cnki.1007-7561.2024.02.002
酶解耦合湿热处理对板栗淀粉消化性能与回生性能的影响
Effects of Enzymolysis Coupled with Hydrothermal Treatment on Digestion and Retrogradation of Chestnut Starch
摘要
Abstract
The digestion and retrogradation performance of chestnut starch constrains the development of chestnut food industry.It is of great significance to select reasonable processing methods to regulate the digestion and retrogradation properties for the development of nutritious and healthy chestnut foods with high quality.Therefore,the effects of pullulanase enzymatic hydrolysis coupled with hydrothermal treatment on digestibility,long-term retrogradation and multi-scale structure of chestnut starch were investigated.Results showed that enzymatic hydrolysis increased amylose content,and changed chain length distribution.Short-range ordered and crystalline structures were also improved,and the starch digestibility were also reduced.Hydrothermal treatment promoted starch chain interactions,and improved short-range ordered,crystalline and nano-aggregate structures of starch,leading to the lower starch digestibility.During long-term retrogradation,due to the increase of shorter A chains and the decrease of B1 chains which are easy to rearrange,starch crystalline and nano-aggregate structures decreased,which retarded starch retrogradation.Hydrothermal treatment promoted the interactions among A chains and other molecules,and further inhibited the degree of starch molecule rearrangement,which could lead to the lower degree of retrogradation.Therefore,enzymatic hydrolysis coupled with hydrothermal treatment can be used as an effective method to regulate the digestion and retrogradation performance of starch,which could promote the development of chestnut starch-based foods with slower digestion rate and lower retrogradation degree.关键词
板栗淀粉/普鲁兰酶酶解/湿热处理/消化率/回生/多尺度结构Key words
chestnut starch/pullulanase hydrolysis/hydrothermal treatment/digestibility/retrogradation/multi-scale structures分类
轻工纺织引用本文复制引用
屈腾飞,涂园,黄双霞,何忠超,陈玲,李晓玺..酶解耦合湿热处理对板栗淀粉消化性能与回生性能的影响[J].粮油食品科技,2024,32(2):14-20,7.基金项目
国家自然科学基金(32072172) （32072172）
国家重点研发计划(2019YFD1002305) National Natural Science Foundation of China(No.32072172) （2019YFD1002305）
National Key Research and Development Project of China(No.2019YFD1002305) （No.2019YFD1002305）
