二氢杨梅素乙酸酯的合成及抗氧化作用  

Synthesis of dihydromyricetin acetate and its antioxidation effect

作　　者：严赞开[1] 胡春菊[2] 曾娜[1] 

机构地区：[1]韩山师范学院化学系,广东潮州521041 [2]韩山师范学院医务所,广东潮州521041

出　　处：《食品工业科技》2009年第12期314-315,共2页Science and Technology of Food Industry

基　　金：广东省科技计划(2007B031600001)资助项目;潮州市卫生局科研项目(200726)

摘　　要：目的:将二氢杨梅素进行酯化改性,考察二氢杨梅素酯化衍生物结构与抗氧活性间的内在关系。方法:采用改变乙酸酐与二氢杨梅素投料比,合成不同酯化程度的二氢杨梅素酯,并用猪油体系测定其抗氧活性。结果:用磷酸作催化剂,可有效地合成二氢杨梅素酯,所合成的化合物均有较强的抗氧化能力。结论:通过对二氢杨梅素酯化改性,明显地提高了二氢杨梅素的抗氧化作用能力。Objective =The dihydromyricetin（DMY） was esterified with acetic anhydride for modifying, and the internal relationship of the structure of DMY derivatives with their antioxidation effect was investigated.Methods.A series of DMY acetates were synthesized with different ratio of acetic anhydride to DMY,the antioxidation capability of them for lard was determinated. Results： DMY acetates could be synthesized effectively using phosphoric acid as catalyst,the antioxidation effect of DMY acetates were better than DMY in lard system.Conclusion.The antioxidation effect of DMY was strongly enhanced after modification and esterification.

关 键 词：二氢杨梅素 乙酸酐 抗氧化作用 

分 类 号：TS202.3[轻工技术与工程—食品科学]