技术文摘 关键词:茶多酚，高直链淀粉，D-半乳糖，衰老 [gap=1097]Key words：tea polyphenol;high amylose starch;D-galactose;aging
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high-amylose starch 高直链淀粉
High-amylose starch acetate 高直链淀粉乙酸酯
crossed high amylose starch 交联高链淀粉
high-amylose corn starch 高直链玉米淀粉
hydrolysis high amylose corn starch 酶解高直链玉米淀粉
high amylose corn starch 高链玉米淀粉
high-amylose maize starch 高链玉米淀粉
high amylose maize starch 高直链玉米淀粉
Cross-link high amylose corn starch 交联高链玉米淀粉
Starch acetates with high DS are obtained by monitoring reaction conditions. The influences of reaction conditions such as reaction time, reaction temperature, ratios of reactants, etc on the synthesis of high amylose starch acetate are discussed.
本文以高直链淀粉为原料，以冰醋酸和醋酸酐为混和酸，MSA为催化剂，制备了高取代度淀粉醋酸酯，研究了反应温度、反应时间、反应物比例、不同催化剂加入量等不同反应条件对取代度的影响。
参考来源 - 高直链淀粉醋酸酯合成及其与聚已内酯共混纤维的结构与性能·2,447,543篇论文数据，部分数据来源于NoteExpress
The results of X-ray diffraction show that the crystal structure of high amylose starch and the starch acetate differs greatly, which implies that the crystal structure is damaged during substitution.
衍射结果表明，淀粉醋酸酯和原淀粉的结晶结构完全不同，说明在取代过程中，原淀粉的结晶结构遭到破坏。
Because of its special physical and chemical properties, amylose starch is a kind of high additional value starch.
直链淀粉由于其独特的理化性质，是一种高附加值的玉米淀粉。
When using gelatinized starch as substrate, the absorbency of final starch was high, and partially effected by amylose and amylopectin in starch.
用糊化后的淀粉进行接枝共聚反应时，最终制得产物的吸水率较高，并部分地依赖淀粉中直链和支链淀粉的含量。
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