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Optimization of Ultrasonic Extraction of Phenolics from Litchi Seed by Response Surface Methodology

文献类型： 外文期刊

作者： Huang, Xiaobing 1 ; Lin, Lijing 1 ; Li, Jihua 1 ; Ran, Xu 2 ; Tang, Yongfu 1 ;

作者机构： 1.Chinese Acad Trop Agr Sci, Agr Prod Proc Res Inst, Zhanjiang 524001, Peoples R China

2.Sichuan Univ, Dept Food Engn, Chengdu 610065, Peoples R China

关键词： Ultrasonic extraction;litchi seed;response surface methodology

期刊名称：PROGRESS IN ENVIRONMENTAL SCIENCE AND ENGINEERING, PTS 1-4

ISSN： 1022-6680

年卷期： 2013 年 610-613 卷

页码：

收录情况： SCI

摘要： Optimization conditions for ultrasonic extraction of phenolics from litchi seed were studied using response surface methodology. A Box-Behnken design (BBD) was applied to determine the effects of extraction temperature, methanol concentration and extraction time on yield of phenolics. Then a quadratic regression model was developed and found to be statistically significant by examining its adequacy. According to the model, the maximum yield of phenolics was obtained at the theoretical extraction conditions described as follows: extraction temperature 90 degrees C, methanol concentration 59% and extraction time 70 min. Under this condition, the experimental value was 5.48 +/- 0.03% (n = 3) with gallic acid as the equivalent, which agreed with the predicted value (5.52%) closely.

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