响应面法优化商洛核桃青皮多糖提取工艺  

Optimization of Extraction Process of Polysaccharide from Shangluo Walnut Green Peel by Response Surface Method

作　　者：何念武[1] 丁淑平[1] 李堆淑[1] 赵艳艳[1] 

机构地区：[1]商洛学院生物医药与食品工程学院,陕西商洛726000

出　　处：《江西农业学报》2016年第10期56-59,共4页Acta Agriculturae Jiangxi

基　　金：陕西省教育厅专项科研计划项目"商洛核桃青皮提取物防治烟草病虫害关键技术研究"(15JK1219);商洛市烟草公司横向科研项目"核桃青皮提取物防治烟草病毒病关键技术研究"(KJ-2014-02)

摘　　要：为探究商洛核桃青皮多糖热水浸提的最佳工艺条件,以多糖提取率为响应值,在单因素实验基础上,以液料比、提取时间、提取温度为考察因素,采用响应面法(RSM)建立数学模型,筛选最佳提取工艺。研究结果表明,商洛核桃青皮多糖最佳提取条件为:液料比30∶1,浸提时间2.5 h,提取温度90℃,在此条件下多糖提取率可达到7.01%。各因素对提取率影响的大小顺序为:提取温度>提取时间>液料比。此工艺合理可行,可用于商洛核桃青皮多糖的提取。In order to explore the optimum process conditions for the hot- water extraction of polysaccharide from Shangluo walnut green peel,the author took polysaccharide extraction rate as response value,took water-material ratio,extraction time and extraction temperature as investigated factors,used response surface method（ RSM） to establish a mathematical model based on the results of single-factor experiments,and screened out the best polysaccharide extraction conditions as follows： water-material ratio 30 ∶ 1,extraction time 2. 5 h,and extraction temperature 90 ℃. Under these conditions,the polysaccharide extraction rate could reach 7.01%. The influence of various factors on polysaccharide extraction rate showed the following order： extraction temperature extraction time water-material ratio. This process is reasonable and feasible,and it can be used for the extraction of polysaccharide from Shangluo walnut green peel.

关 键 词：商洛核桃青皮 多糖 响应面法 工艺优化 

分 类 号：S664.1[农业科学—果树学]