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›› 2013, Vol. 33 ›› Issue (5): 71-76.doi: 10.3969/j.issn.0253-2417.2013.05.014

• 1研究报告 • Previous Articles     Next Articles

Extraction Conditions of Ellagic Tannin from Infructescence of Platycarya strobilacea Using Response Surface Methodology

XU Man1, WANG Yong-mei1,2, ZHANG Liang-liang1,2, WU Dong-mei1, CHEN Jia-hong1   

  1. 1. Institute of Chemical Industry of Forest Products, CAF;National Engineering Lab. for Biomass Chemical Utilization; Key and Open Lab. of Forest Chemical Engineering, SFA;Key Lab. of Biomass Energy and Material, Jiangsu Province, Nanjing 210042, China;2. Institute of New Technology of Forestry, CAF, Beijing 100091, China
  • Received:2012-10-26 Revised:1900-01-01 Online:2013-10-30 Published:2013-10-30

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Abstract: On the base of the single factor experiments, the conditions of the ellagic tannin extracted from infructescence of Platycarya strobilacea were optimized using response surface methodology (RSM). A central composite design was used to investigate the effects of three independent variables, namely extraction time, extraction temperature and liquid to solid ratio on the yield of extract product. Data were analyzed using Design-Expert 7.1 software. The optimum extraction conditions were: the extraction time 78 min, extraction temperature 90℃, liquid to solid 17.5:1 and extracting two times. Under the optimum conditions, the extraction yield of tannin was 50.0%.

Key words: Platycarya strobilacea, response surface methodology, ellagic tannin, extraction technology

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