Welcome to Chemistry and Industry of Forest Products,

›› 2013, Vol. 33 ›› Issue (1): 54-58.doi: 10.3969/j.issn.0253-2417.2013.01.010

• 1研究报告 • Previous Articles     Next Articles

Flooding Extraction of Betulin

LUO Sha-man1, DING Wei-min1,2, YU Tao1, WANG Yang1   

  1. 1. Key Laboratory of Saline-alkali Vegetation Ecology Restoration in Oil Field, Ministry of Education, Alkali Soil Natural Environmental Science Center, Northeast Forestry University, Harbin 150040, China;2. School of Chemical and Environmental Engineering, Harbin University of Science and Technology, Harbin 150080, China
  • Received:2012-07-17 Revised:1900-01-01 Online:2013-02-28 Published:2013-02-28

Abstract: Betulin was extracted from white birch bark using a modified flooding extraction equipment. The equipment was easy-connected and conveniently-operated. It effectively improved the product purity without the change of yield. The effects of ethanol concentration and extraction time on the yield and purity of betulin was investigated. The optimal conditions were 70% of ethanol concentration, 50 min of extraction time. Under above conditions, the yield of betulin reached (88.39±1.77)% and the product purity was (80.34±0.25)%.

Key words: betulin, flooding extraction, HPLC

CLC Number: