微波辅助提取废次烟叶水溶性糖工艺  

Extraction of Water-soluble Saccharides from Abandoned Tobaccos with Microwave-assisted Technique

作　　者：杜林洳[1] 徐翠莲[2] 樊素芳[2] 万郑凯[2] 王喜云[2] 

机构地区：[1]河南农业大学烟草学院,郑州450002 [2]河南农业大学理学院,郑州450002

出　　处：《科技导报》2010年第13期92-96,共5页Science & Technology Review

摘　　要：为了有效地提取废次烟叶中水溶性糖,进一步对水溶性糖生物活性进行基础和应用开发研究,为废次烟叶水溶性糖的开发利用提供依据,采用连续微波辐射方法进行微波萃取工艺的优化,在单因素试验的基础上,通过正交试验和极差分析考查了提取温度、微波功率、提取时间和料水比对水溶性糖提取率的影响。通过极差分析显示影响因素从大到小依次为:料液比>功率>时间>温度,正交实验的最佳提取条件是:料液比1:30、提取功率400W、提取时间20min、提取温度60℃,提取率为28.54%。与经典法和直接水提法相比,微波辅助提取法可将水溶性糖的提取率分别提高6.39%和6.92%,并具有高效、节能、产率稳定、省时等特点。In order to extract water-soluble saccharides from discarded tobaccos effectively, and to study their biological activity, the microwave technology is used in extraction of water-soluble polysaccharides from discarded tobaccos and the optimal process of extraction was obtained by the method of continuous microwave radiation. On the basis of one-factor tests, the effects of extraction temperature, microwave power, extraction time and liquid-to-solid ratio on the microwave extraction of water-soluble saccharides were analyzed by the orthogonal experiment and the range analysis. The results of range analysis show that the factors affecting extraction rate are in the following order in their importance： ratio of solid to liquid〉microwave power〉extraction time〉temperature. The optimized conditions are： 1：30 of the ratio of solid to liquid, 400W of the microwave power, 20 min of the extraction time and 60℃ of the temperature. The extraction rate of 28.54% can be obtained under the above conditions, an increase of 6.39% and 6.92%, respectively, as compared with the classical method and the direct water extraction This method enjoys advantages such as high efficiency, energy-saving, yield stability and timesaving.

关 键 词：废次烟叶 水溶性糖 微波提取 正交试验 参数优化 

分 类 号：TQ461[化学工程—制药化工]