乌龙茶多糖的化学修饰及其理化性质和活性研究 - 食品安全质量检测学报.pdf

6 5 Vol. 6 No. 5 2015 5 Journal of Food Safety and Quality May. , 2015 * 李淑琴, 陈海霞, 曲志爽, 王秀明 (, , 300072) 摘 要: 目的 方法 , , 结果 , , , , , , (P0.01)结论 关键词: ; ; ; Physicochemical properties and bioactivity of chemical modified Oolong tea polysaccharide * LI Shu-Qin, CHEN Hai–Xia , QU Zhi-Shuang, WANG Xiu-Ming (Tianjin Key Laboratory for Modern Drug Delivery High–Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China) ABSTRACT: Objective Oolong tea polysaccharide was subjected to acetylated and sulfated. Modification and comparison studies were processed between the derivatives. Methods Infrared radiation (IR) and ultraviolet (UV) spectrum and atomic force microscope (AFM) were used to analyze the structure of the polysaccharide and its derivatives. In order to detect the physical property changes of polysaccharide