Convenient isolation of strictinin-rich tea polyphenol from Chinese green tea extract by zirconium phosphate

Authors

Y. Ma
Y. Shang
F. Liu
W. Zhang
C. Wang
D. Zhu

Abstract

Zirconium phosphate (ZrP) was prepared and employed to separate strictinin-rich tea polyphenol from Chinese green tea extracts. The influences of ZrP calcination temperatures, green tea extraction conditions, and the amounts of ZrP on the isolation of strictinin-rich tea polyphenol were evaluated; the absorption and desorption dynamics of strictinin on ZrP were also determined. Our results revealed that the HPLC content of strictinin increased from 4.96% in 70% ethanol extract of green tea to 58.2% in isolated strictinin-rich tea polyphenol obtained by ZrP-900 (ZrP calcined at 900°C). Furthermore, the suitable time for both strictinin absorption and desorption was 4 hours at 37°C. The method developed here consisted of easy steps such as ZrP absorption, water washing, and 0.4% phosphoric acid solution desorption, which may facilitate the detection and isolation of strictinin from different samples. © 2017

Abstract Image

ScienceDirect Link

10.1016/j.jfda.2016.11.013

Recommended Citation

Ma, Y.; Shang, Y.; Liu, F.; Zhang, W.; Wang, C.; and Zhu, D. (2018) "Convenient isolation of strictinin-rich tea polyphenol from Chinese green tea extract by zirconium phosphate," Journal of Food and Drug Analysis: Vol. 26 : Iss. 1 , Article 35.
Available at: https://doi.org/10.1016/j.jfda.2016.11.013

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