Title: Extraction of Water-soluble Saccharides from Abandoned Tobaccos with Microwave-assisted Technique
Abstract: 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 liquidmicrowave powerextraction timetemperature. 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 time- saving.
Publication Year: 2010
Publication Date: 2010-01-01
Language: en
Type: article
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