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《Journal of Anhui Agricultural Sciences》 2011-06
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Study of Optimization of Extraction Technology of Jujube Polysaccharides by Response Surface Methodology

JIANG Shui-xing et al (College of Life Science and Engineering,Shaanxi University of Science and Technology,Xi'an,Shaanxi 710021)  
[Objective] The aim was to optimize the extraction conditions for the yield of polysaccharides from jujube residue which was collected after the extraction of rutin.[Method] The optimum extraction conditions for liquid-to-solid ratio,extraction time and temperature were studied according to the mathematics model built by using Box-Behnken central composite design and response surface methodology(RSM).[Result] The results showed that extraction conditions of jujube polysaccharides were liquid-to-solid ratio of 30∶1,extraction time of 3.6 h and temperature of 89 ℃,then the yield rate of jujube polysaccharides was 13.85%.[Conclusion] The regression equation,which was obtained by multiple linear regression,accurately reflected the interrelation among the polysaccharides yield rate,liquid-to-solid ratio,time and temperature,and the optimum technology can be used to instruct the extraction of jujube polysaccharides.
【Fund】: 陕西科技大学博士科研启动基金项目(BJ09-22)
【CateGory Index】: TQ461
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