茶多酚脂溶性改性条件的确定及其抗氧化性能的研究  

STUDY ON THE MODIFICATION CONDITIONS AND ANTI-OXIDANT ACTIVITY OF MODIFICATIVE TEA POLYPHENOIYS

作　　者：张健希[1] 张玉军[1] 晁燕[1] 黄磊[1] 华琳烂[1] 

机构地区：[1]河南工业大学化学化工学院,河南郑州450001

出　　处：《河南工业大学学报（自然科学版）》2008年第3期15-20,共6页Journal of Henan University of Technology：Natural Science Edition

基　　金：河南省教育厅自然科学基金项目(2004150010);河南工业大学科研基金项目(0401001)

摘　　要：选用3种不同的酰氯作为原料与水溶性茶多酚进行反应，合成脂溶性茶多酚，考察了物料配比、催化剂用量和反应温度对改性反应的影响，发现了茶多酚的脂溶性和抗氧化活性之间存在着一定的关系，得出脂溶性含量在50％～60％的改性产品抗氧化性能最好．并通过比较不同酰氯对改性产物活性的影响，得出最佳改性试剂应为碳原子数在12以上的直链饱和脂肪酰氯．Three different acylating chloride are used as raw materials to react with water-soluble polyphenols in order to synthesize the tea polyphenol. The main factors affecting the reaction, such as ratio of reactants, the catalyst concentration and temperature are investigated on the reaction. The results showed that there is definite relationship between liposoluble character and antioxidant activity, and the products which have 50%-60% percent lipophilic content have the best antioxidant activity. Through comparing the antioxidantion of LTP modified by different acylating chloride, the best modifying reagent should be saturated alkyl acylating chloride which should have more than twelve carbon atoms.

关 键 词：茶多酚 改性 脂溶性含量 抗氧化性 

分 类 号：TS201.2[轻工技术与工程—食品科学]