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Optimization of the Selective Preparation of 20(R)-Ginsenoside Rg3 Catalyzed by D, L-Tartaric Acid Using Response Surface Methodology.
MedLine Citation:
PMID:  23219978     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
The optimization of the selective preparation of 20(R)-ginsenoside Rg3 converting protopanaxadiol type saponins (PPD saponins) by the commercially available D, L-tartaric acid was carried out using response surface methodology (RSM) based on a three-factor and six-level central composite design. The optimal 20(R)-ginsenoside Rg3 de% was predicted to be 94.52% in the combination of the factors (D, L-tartaric acid concentration 1.19 mol/L, temperature 107.9 °C and time 2.79 h) through the canonical analysis with maximum responses. Under the optimum reaction conditions, the actual 20(R)-ginsenoside Rg3 de% was 96.49%. 20(R)-ginsenoside Rg3 (1) and 20(S)-ginsenoside Rg3 (2) were separated and identified by (1)H-NMR and (13)C-NMR. Therefore, the RSM was effective to optimize the preparation of 20(R)-ginsenoside Rg3 by converting PPD saponins using D, L-tartaric acid.
Authors:
Chengpeng Sun; Weiping Gao; Baozhong Zhao; Leqin Cheng
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-12-3
Journal Detail:
Title:  Fitoterapia     Volume:  -     ISSN:  1873-6971     ISO Abbreviation:  Fitoterapia     Publication Date:  2012 Dec 
Date Detail:
Created Date:  2012-12-10     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  16930290R     Medline TA:  Fitoterapia     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2012. Published by Elsevier B.V.
Affiliation:
Department of Chemistry, Northeast Normal University, Changchun, P. R. China.
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