FOOD SCIENCE ›› 2009, Vol. 30 ›› Issue (18 ): 139-141.doi: 10.7506/spkx1002-6300-200918028

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Optimization of Extraction Technology of Total Flavonoids from Seeds of Osmanthus fragrans Lour.

TANG Qiao-yu1,ZHOU Yi-feng2,ZHU Yu-chang1   

  1. 1. Key Laboratory of Biological Resources Protection and Utilization of Hubei Province, Hubei University for Nationalities, Enshi
    445000, China;2. College of Biological Science and Technology, Hubei University for Nationalities, Enshi 445000, China
  • Received:2009-04-23 Online:2009-09-15 Published:2010-12-29
  • Contact: TANG Qiao-yu E-mail:tqy78798@sohu.com

Abstract:

Six solvents were separately used to extract total flavonoids from seeds of Osmanthus fragrans Lour. Among of them, absolute ethanol exhibited the high extraction efficiency. The ethanol extraction procedure of total flavonoids was optimized by single-factor and L9(34) orthogonal array methods. The optimum extraction conditions were determined as follows: ethanol concentration 60%, solid/liquid ratio 1:50, and temperature 90 ℃ for an extraction duration of 5 h. Under these conditions, a maximum yield of total flavonoids of 3.96% was obtained.

Key words: seed of Osmanthus fragrans Lour., flavonoids, extraction

CLC Number: