FOOD SCIENCE ›› 2010, Vol. 31 ›› Issue (20): 93-96.doi: 10.7506/spkx1002-6630-201020019

• Processing Technology • Previous Articles     Next Articles

Lipase-catalyzed Synthesis of Gallic Acid Lutein Ester

YANG Yun-shang,XU Jian-guo,ZHANG Ying-peng*,LI Chun-lei   

  1. School of Petrochemical Engineering, Lanzhou University of Technology, Lanzhou 730050, China
  • Received:2010-01-05 Revised:2010-05-31 Online:2010-10-25 Published:2010-12-29
  • Contact: ZHANG Ying-peng E-mail:yingpengzhang@126.com;yangguang@lut.cn

Abstract:

Lutein and gallic acid were used as the raw materials to synthesize gallic acid lutein ester through the catalysis of Lipozyme Novo 435. The structure of the synthesized product was determined by IR. The effects of enzyme load, solvent, and water content, reaction temperature and reaction time on the esterification were investigated. The optimal reaction conditions were determined as follows: enzyme load, 10 mg/mL; water content, 60 mg/g; reaction medium, chloroform; reaction temperature, 40 ℃; and reaction time, 30 h. The conversion rate of gallic acid was up to 81.8% under these conditions.

Key words: gallic acid, lutein, lipase, esterification

CLC Number: