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响应面分析法优化蛹虫草菌糠多糖提取工艺的研究 被引量:4

Extraction Optimizing of Polysaccharide from Waste Materials of Cordyceps militaris by Response Surface Analysis Method
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摘要 以蛹虫草(Cordyceps militaris)菌糠为材料,进行菌糠多糖提取条件的优化研究。单因素实验表明,提取温度、水料比及提取时间均不同程度地影响多糖提取率。根据Box-Behnken中心组合实验设计原理对提取温度、水料比、提取时间进行三因素三水平试验设计,采用响应面软件Design-Expert进行处理,获得蛹虫草菌糠多糖提取最佳的优化条件。即提取温度100℃,水料比50∶1,提取时间3 h优化条件下多糖提取率达5.45%,多糖提取预测值为5.88 mg·m L-1。建立的模型拟合度较好,可用来对蛹虫草多糖提取工艺的分析和预测。 Single-factor experiments and Box-Behnken central composite design were used to optimize the extraction of polysaccharides from waste materials of Cordyceps militaris.The single-factor experiment results showed that three factors including the extraction time,water-materials ratio,and extraction temperature of the experiment would affect the extraction degree.According to Box-Behnken central composite design principle,three factors and three levels experiments are designed,and optimal conditions of extraction of polysaccharides are obtained.Response surface processing software Design-Expert was used.Results showed that optimal extraction conditions were temperature of 100 ℃,time of 3 h,water-material ratio of 50∶ 1.The extraction rate of polysaccharide was 5.45 % and predictive value of polysaccharide was 5.88 mg / m L.The model fit well,which can be used to analyze and predict the extraction process of polysaccharide from Cordyceps militaris.
出处 《大连民族大学学报》 2016年第5期462-465,472,共5页 Journal of Dalian Minzu University
关键词 蛹虫草(Cordyceps militaris) 菌糠 多糖 响应面分析 Cordyceps militaris waste material polysaccharide response surface analysis
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