2009•Food and MachineryRequires access

Optimization conditions for green tea extraction

Yahui Mao

Abstract

This paper investigated the effect of different solvents,different concentrations of ethanol,different extraction temperatures,with different solid-liquid ratio,different extraction time,and different extraction times on the green tea catechin extracting rate. The results showed that: When using 80% ethanol concentration,extraction temperature in 70 ℃ ,solidliquid ratio 1 ∶ 15(W ∶ V) and the extraction time for 30 min and the extraction times by 2 times ,effect of extraction of green tea catechins reach to 98. 17% .

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Available abstract

Key concepts: Extraction (chemistry), Catechin, Green tea, Chromatography, Chemistry, Ethanol, Polyphenol, Food science