Comparison of Microwave Method with Traditional Method to Extract Tea Polyphenols

Abstract:

In this research, the primary study in extracting technologies of Tea polyphends was finished. On the basis of the water lixiviation by orthogonal optimization method, extraction process of TP by microwave extraction was optimized. The best combined condition of the water lixiviation as follows: liquid-lolid ratio 25:1, extraction temperature 95°C , extraction time 20min,Under this conditions, the yield of TP is 13.993 %.And the best combined condition by microwave extraction: liquid-lolid ratio 35:1, microwave power 750 W, extraction time 18min, and the yield of TP is 20.3023 % through duplicated experiment. The results showed that compare with water lixiviation, the yield of TP was enhanced by 6.3093 % by microwave method. Meanwhile, the extraction time by microwave method was reduced greatly.

• Periodical: Advanced Materials Research (Volume 933)
• Pages: 183-186
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.933.183
• Online since: May 2014
• Authors: Yan Xia Han*, Gong Nan Wang, Zhao Zhong Shi, Fang Wang
• Keywords: Microwave Extraction, Orthogonal Experiment, Tea Polyphenols, Water Extraction

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