作 者：
付湘晋;冉晓敏;张慧;黎继烈;周其中;李忠海
单 位：
中南林业科技大学食品科学与工程学院;粮油深加工及品质控制湖南省重点实验室
关键词：
樟树叶多酚;AB-8大孔树脂;吸附;解吸附;纯化
摘 要：
AB-8大孔树脂吸附樟树叶多酚的最佳温度为25℃,多酚溶液pH 5.68,最适宜的洗脱液为60%的乙醇溶液(体积分数).AB-8大孔树脂对樟树叶多酚静态吸附4 h达到平衡,吸附率94.4%;静态解吸动力学特性测定表明,解吸2 h,解吸率80.28%;在上述最佳条件下,多酚得率75.78%,纯度63.56%.AB-8大孔树脂等温吸附樟树叶多酚过程符合Langmuir方程,饱和吸附量为47.619 mg·g-1.
译 名：
Adsorption and desorption of resin AB-8 to polyphenol in the leaves of camphortree
作 者：
FU Xiang-jin,RAN Xiao-min,ZHANG Hui,LI Ji-lie,ZHOU Qi-zhong,LI Zhong-hai(1.School of Food Science and Engineering,Central South University of Forestry and Technology;2.Hunan Provincial Key Laboratory of Deeply Processing and Quality Control of Cereals and Oils,Changsha,Hunan 410004,China)
关键词：
camphotree leaves polyphenol;AB-8 resin;adsorbing;desorbing;purification
摘 要：
The optimal parameters for AB-8 adsorbing camphotree leaves polyphenol were determined as: 25 ℃,pH 5.68,the best desorbing solvent was 60% ethanol.The adsorbing achieved balance in 4 hours,and the adsorbing rate was 94.4%.The desorbing rate was 80.28% in 2 hours.Under the optimal conditions,the recovery rate was 75.78%,and the purity of polyphenol was 63.56%.The pattern of AB-8 adsorbing camphotree leaves polyphenol fit Langmuir equation,and the saturated adsorption capacity of AB-8 was 47.619 mg·g-1.
