响应面法优化胡麻籽壳多糖超声提取工艺  

Optimization of ultrasound-assisted extraction of polysaccharide from flaxseed shell using response surface methodology

作　　者：陈金娥[1] 高瑞苑 张海容[1,2] CHEN Jin＇e GAO Ruiyuan ZHANG Hairong(Lab of Biochemical Analysis, Xinzhou Teachers College, Xinzhou 034000, Shanxi, China Shanxi Key Laboratory of Materials and Computational Chemistry, Xinzhou 034000, Shanxi, China)

机构地区：[1]忻州师范学院生化分析技术研究所,山西忻州034000 [2]材料与计算化学山西省高等学校重点实验室,山西忻州034000

出　　处：《中国油脂》2017年第9期145-148,156,共5页China Oils and Fats

基　　金：忻州师范学院重点学科建设项目资助计划(xk201402);山西省自然科学基金资助(2011011007-1)

摘　　要：采用超声法提取胡麻籽壳多糖。在单因素试验的基础上,采用四因素三水平响应面分析法,以多糖得率为响应值,优化提取工艺条件,并将超声提取法与热水浸提法进行比较。结果表明:超声提取胡麻籽壳多糖的最佳工艺条件为超声功率80 W、超声温度56℃、液固比49∶1、超声时间21min、提取次数2次,在此条件下胡麻籽壳多糖得率为2.70%;与热水浸提法相比,超声提取法能耗低、得率高,且提取时间短。Abstract： Polysaccharide was extracted from flaxseed shell by ultrasound -assisted extraction method. Based on single factor experiment, with the yield of polysaccharide as response value, the extraction con- ditions were optimized by four factors and three levels response surface methodology. The ultrasound - as-sisted extraction method was compared with hot water extraction method. The results showed that the opti- mal extraction conditions of polysaccharide from flaxseed shell were determined as follows： ultrasonic power 80 W, ultrasonic temperature 56 ℃ ,liquid - solid ratio 49： 1, ultrasonic time 21 min and extrac- tion times twice. Under these conditions, the yield of polysaccharide from flaxseed shell was 2.70%. Compared with hot water extraction method, ultrasound - assisted extraction method had advantages of low energy consumption, high yield, and short extraction time.

关 键 词：胡麻籽壳 多糖 超声提取 响应面法 

分 类 号：TQ281[化学工程—有机化工]