Chemical Research in Chinese Universities ›› 2014, Vol. 30 ›› Issue (2): 216-221.doi: 10.1007/s40242-014-3394-6

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Preparation of a Hybrid Organic-inorganic Monolith for Extraction and Purification of Quercetin and Myricetin from Chamaecyparis obtusa

ZHU Tao1,2, LEE Yuri2, ROW Kyungho2   

  1. 1. School of Chemistry and Chemical Engineering, Tianjin University of Technology, Tianjin 300384, P. R. China;
    2. Department of Chemical Engineering, Inha University, Incheon 402-751, Korea
  • Received:2013-09-17 Revised:2013-11-06 Online:2014-04-01 Published:2013-11-25
  • Contact: ROW Kyungho E-mail:rowkho@inha.ac.kr
  • Supported by:

    Supported by the Basic Science Research Program Through the National Research Foundation of Korea(NRF) funded by the Ministry of Education, Science and Technology(No.2011-0010673).

Abstract:

A new hybrid organic-inorganic monolithic cartridge was synthesized and used as the selective sorbent for the extraction and purification of quercetin and myricetin from Chamaecyparis obtusa via a solid-phase extraction method. The morphology of the monolithic material was examined by field emission-scanning electron microscopy and a Brunauer-Emmett-Teller(BET) test. The adsorption capacity of the obtained material for quercetin and myricetin was investigated by fitting the adsorption data to four different adsorption equations, of which the Langmuir-Freundlich isotherm was selected as the most suitable model. Under optimized conditions, good calibration curves were observed at nine concentrations ranged from 0.5 μg/mL to 100.0 μg/mL of quercetin and myricetin. The extraction recovery ranged from 74.5% to 84.6% and the inter-and intra-day relative standard deviations were <6%. This type of hybrid monolith has potential for the separation and purification of bioactive compounds from natural plant extracts.

Key words: Extraction, Purification, Adsorption isotherm, Hybrid organic-inorganic monolith, Quercetin, Myricetin