Study on Biosynthesis of Asymmetric Synthetic Danshensu Borneol ester by Baker 's Yeast
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1 The Development and Application of Supercritical Fluid Chromatography (2013YQ170525; subproject: Application Research of Supercritical Fluid Chromatography in Chinese Traditional Medicine and Its Metabolites, 2013YQ17052509), 2 Program for Changjiang Scholars and Innovative Research Team in University of Ministry of Education of China (IRT_15R55)

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    Abstract:

    In view of the disadvantages of high cost、hash experimental conditions and low utilization rate of raw materials in existing reports. In the paper, 3,4-dihydroxybenzaldehyde was used as raw material, refer to the literature method, and β-(3,4-dihydroxyphenyl) pyruvate borneol ester was synthesized at first, then under the bread’s yeast fermentation liquid and target product Danshensu borneol ester was synthesized. The influence of amount of glucose and β-cyclodextrin、reaction time 、pH were investigated in the paper. When β-(3,4-dihydroxyphenyl) pyruvate borneol ester was 0.5g , And the best conditions were as follow: amount of glucose was 30g , reaction time was 24h, pH was 7, amount of β-cyclodextrin was 1.5g. enantiomeric excess valve of the target product as high as 84.9%,and main configuration was S-DBZ . The reaction conditions of the process in this paper were mild and the cost was low, which was a very valuable process for the production of Danshensu borneol ester.

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History
  • Received:July 06,2017
  • Revised:October 03,2017
  • Adopted:November 06,2017
  • Online: May 14,2018
  • Published:
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