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›› 2010, Vol. 44 ›› Issue (3): 6-10.

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Study on New Preparation Technology of Pharmaceutical Tannic Acid

CHANG Lian-ju1, ZHANG Zong-he1,2, ZHONG Chong-mao2, DU Yun-ping1   

  1. 1. Institute of Chemical Industry of Forest Products, CAF;National Engineering Lab. for Biomass Chemical Utilization;Key and Open Lab. on Forest Chemical Engineering, SFA, Nanjing 210042, China;2. Nanjing Longyuan Natural Polyphenol Synthesis Factory, Nanjing 210032, China
  • Received:2010-01-14 Revised:1900-01-01 Online:2010-05-30 Published:2010-05-30

Abstract: Pharmaceutical tannic acid was prepared from industrial tannic acid through methanol extraction and chromatography adsorption. The optimum conditions were deter mined as follows:ratio of industrial tannic acid to methanol 1:5(g:mL), temperature of actived carbon-adsorption column 60℃, and the flow rate 25 mL/min. The content of tannic acid of product was over 93%. The other items had reached the requirements of pharmaceutical tannic acid.

Key words: methanol-extraction, pharmaceutical tannic acid, granutar activated carbon, chromatographic adsorption

CLC Number: