FOOD SCIENCE ›› 2010, Vol. 31 ›› Issue (6): 32-35.doi: 10.7506/spkx1002-6630-201006007

• Processing Technology • Previous Articles     Next Articles

Comparative Study of Different Extraction Techniques for Extraction of Magnolol and Honokiol from Branches of Megnolia Hypoleuca

ZHANG Zhao-hui,WANG Qiu-lan,YAO Mao-jun   

  1. College of Chemistry and Chemical Engineering, Jishou University, Jishou 416000, China
  • Received:2009-05-18 Revised:2009-10-26 Online:2010-03-15 Published:2010-12-29
  • Contact: ZHANG Zhao-hui E-mail:zhaohuizhang77@hotmail.com

Abstract:

Heat reflux, ultrasonic-assisted extraction, microwave-assisted extraction and supercritical carbon dioxide extraction were compared for extraction of magnolol and honokiol from branches of Megnolia Hypoleuca. Reverse-phase HPLC was used for quantitative analysis of magnolol and honokiol. Results showed that among four extraction techniques, the least time was consumed for the microwave-assisted extraction of magnolol and honokiol, and the single microwave-assisted extraction for 40 min at 200 W (1-2.8 PV) with 65% ethanol as extraction solvent using a material/liquid ratio of 1:40 (mg/mL) gave the highest yields of magnolol and honokiol, which were valued at 7.893 mg/g and 1.938 mg/g, respectively.

Key words: magnolol, honokiol, extraction technology, high-performance liquid chromatography

CLC Number: