粮油食品科技2025，Vol.33Issue(2)：59-66,8.DOI:10.16210/j.cnki.1007-7561.2025.02.009
酶解改性辛烯基琥珀酸淀粉的制备及其性能研究
Preparation and Property Study of Enzymatically Modified Octenyl Succinate Starch
摘要
Abstract
Octenylsuccinic anhydride starch(OSAS)has high viscosity and low solubility in water,which often leads to low efficiency in the esterification reaction between starch and octenylsuccinic anhydride under alkaline conditions,and uneven distribution of octenylsuccinic anhydride(OSA)groups.Enzymatic hydrolysis of OSAS can solve this problem.Using waxy corn starch to prepare OSAS,the molecular weight of enzyme-modified octenylsuccinic anhydride starch(E-OSAS)decreased with the addition of pullulanase.The degree of substitution of E-OSAS was greater than that of OSAS,and as the amount of pullulanase increased,the degree of substitution of E-OSAS showed an upward trend,while the apparent viscosity decreased significantly.The smaller particle size and polydispersity index(PDI),the larger the absolute value of the zeta potential.E40-OSAS,with the smallest particle size,the best homogeneity and stability,had the smallest weight average molecular weight(1.38×106 g/mol),the smallest number average molecular weight(1.37×105 g/mol),and the largest degree of substitution of 0.019.This study provides some basis for the research of new microcapsules.关键词
蜡质玉米淀粉/普鲁兰酶/酶解/辛烯基琥珀酸淀粉/结构表征Key words
waxy corn starch/pullulanase/enzymolysis/octenyl succinate starch/structure characterization分类
轻工纺织引用本文复制引用
胡中山,周进杰,陈磊,黄伟,冯涛..酶解改性辛烯基琥珀酸淀粉的制备及其性能研究[J].粮油食品科技,2025,33(2):59-66,8.基金项目
国家自然科学基金"直链淀粉/β-乳球蛋白/α-亚油酸水溶性三聚体纳米胶囊的自组装行为及其作为柑橘汁脱苦剂的应用"(31371736) （31371736）
上海烟草集团有限责任公司科技项目"新款爆珠生产技术研究"(K2024-2-036P) National Natural Science Foundation of China"Self-assembly Behavior of Water-Soluble Trimer Nanocapsules of Amylose/β-lactoglobulin/α-linoleic Acid and Its Application as Citrus Juice Bitter Remover"(No.31371736) （K2024-2-036P）
Technology Project of Shanghai Tobacco Group Co.,Ltd"Research on the Production Technology of New Burst Beads"(No.K2024-2-036P) （No.K2024-2-036P）
