响应面法优化微波辅助提取五倍子单宁工艺研究  

Optimization of Microwave-assisted Extraction of Tannic Acid from Chinese Gallnut Using Response Surface Method

作　　者：秦清[1,2,3,4,5] 闵凡芹[2,3,4,5] 徐浩[1,2,3,4,5] 张宗和[1,2,3,4,5] 李文君[2,3,4,5] 王成章[1,2,3,4,5] 

机构地区：[1]南京龙源天然多酚合成厂,江苏南京210032 [2]中国林业科学研究院林产化学工业研究所 [3]生物质化学利用国家工程实验室 [4]国家林业局林产化学工程重点开放性实验室 [5]江苏省生物质能源与材料重点实验室,江苏南京210042

出　　处：《林产化学与工业》2012年第6期84-88,共5页Chemistry and Industry of Forest Products

基　　金：林业公益性行业专项(201004013)

摘　　要：通过单因素及响应面法对微波辅助提取五倍子单宁的工艺条件进行了优化,考察了液固比、微波提取时间、提取温度3个自变量对响应值单宁酸提取得率的影响。结果表明,单宁酸最佳微波辅助提取条件为:五倍子粉末10 g,微波功率600 W,液固比32:1(mL:g),提取时间7 min,提取温度62℃,在此条件下单宁酸提取得率为65.13%。The microwave-assisted extraction process of tannic acid from Chinese gallnut were optimized using response surface method （RSM）. The effects of three independent variables, i.e. liquid to solid ratio, microwave extraction time and extraction temperature, on the yield of tannic acid, was also investigated. Results indicated that the optimum microwave-assisted extraction was obtained as the powder of Chinese gallnut 10 g, microwave power 600 W, liquid to solid ratio 32 ： 1 （mL： g）, ultrasonic extraction time 7 min and temperature 62℃, respectively. Under this optimum condition, the extraction yield of tannic acid was 65.13%.

关 键 词：五倍子 单宁酸 响应面法 提取 微波 

分 类 号：TQ35[化学工程]