Chemical Research in Chinese Universities

, Volume 30, Issue 1, pp 37–41

Extraction of catechin compounds from green tea with a new green solvent

Article

Abstract

An emerging green solvent called a deep eutectic solvent(DES) was applied to the extraction and determination of catechin(C), (+)epicatechin gallate(ECG) and (−)epigallocatechin gallate(EGCG) from Chinese green tea. After evaluating different combinations of them by extraction methods and DESs, a DES-based extraction method was established and optimized by a systematic investigation of the influencing factors. As a result, a total of 3.629, 35.25 or 114.2 mg/g catechin, (+)epicatechin gallate or (−)epigallocatechin gallate were extracted respectively under optimal conditions with extraction efficiencies of 82.7%, 92.3% and 97.0%, respectively. By comparing with other common used solvents for extracting catechin compounds, DESs were proved to be potential extraction solvents for bioactive ingredients.

Keywords

Deep eutectic solvent Catechin Extraction High performance liquid chromatography 

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Copyright information

© Jilin University, The Editorial Department of Chemical Research in Chinese Universities and Springer-Verlag GmbH 2014

Authors and Affiliations

  1. 1.Department of Chemistry and Chemical EngineeringInha UniversityIncheonKorea

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