Optimization of Ultrasonic Extraction of Total Flavonoids from Litchi (Litchi chinensis Sonn.) Seed by Response Surface Methodology
文献类型: 外文期刊
第一作者: Lin, Lijing
作者: Lin, Lijing;Huang, Xiaobing;Li, Jihua;Tang, Yongfu
作者机构:
关键词: Response surface methodology (RSM);litchi seed;total flavonoids;ultrasonic extraction
期刊名称:ADVANCES IN CHEMICAL, MATERIAL AND METALLURGICAL ENGINEERING, PTS 1-5
ISSN: 1022-6680
年卷期: 2013 年 634-638 卷
页码:
收录情况: SCI
摘要: The ultrasonic technology was applied to optimize the processing parameters of extraction of flavonoids from litchi seed using the response surface methodology. The Box-Behnken design was used to analyze the effect of independent variables including extraction temperature (Xi), methanol concentration (X-2) and extraction time (X-3) on the yield of total flavonoids as the dependent variable(Y). The analysis of variance (ANOVA) indicated that three independent variables, their quadratic terms and interaction terms showed a significant effect on yield of total flavonoids (YTF) except the interaction between X-1 and X-2. A mathematical model with high determination coefficient was constructed, according to which the optimal extraction conditions were determined as follows: extraction temperature 70 degrees C, methanol concentration 68%, extraction time 70 min. Under the above-mentioned condition, the experimental value of YTF was 3.55 g catechin equivalent per 100 g of dry (g CE/100 g), which agreed with the predicted value perfectly, demonstrating the response surface model was suitable in optimizing the extraction of flavonoids from litchi seed.
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