FOOD SCIENCE ›› 2010, Vol. 31 ›› Issue (6): 65-69.doi: 10.7506/spkx1002-6630-201006015

• Processing Technology • Previous Articles     Next Articles

Extraction of Total Flavonoids from Star Anise and Its Residue Left after Volatile Oil Extraction

SHU Xin,LIU Xiong-min,WANG Qiao   

  1. College of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China
  • Received:2009-07-17 Revised:2009-10-22 Online:2010-03-15 Published:2010-12-29
  • Contact: SHU Xin E-mail:shuxin1021@yahoo.com.cn

Abstract:

In the present study, hot ethanol reflux extraction was adopted for extracting total flavonoids from star anise or its residue left after volatile oil extraction. The optimal processes for extracting total flavonoids from two materials were investigated by single factor and orthogonal array methods. Results showed that three-time extraction for 120 min each time gave an optimal extraction of total flavonoids from star anise at a material/liquid ratio of 1:30 with 80% ethanol as extraction solvent and from star anise residue at a material/liquid ratio of 1:10 with 50% ethanol, respectively. Under the above conditions, the yields of total flavonoids from star anise and its residue were 23.61% and 16.81%, respectively.

Key words: star anise, star anise residue, total flavonoids, orthogonal array design

CLC Number: