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Chinese Agricultural Science Bulletin ›› 2021, Vol. 37 ›› Issue (7): 126-131.doi: 10.11924/j.issn.1000-6850.casb2020-0095

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Flavonoids from Fujian Bergamot: Ultrasonicly Extracting Technology and Its Antioxidation Properties

Huang Jing(), Chen Chan(), Huang Xiaomei   

  1. Fujian Vocational College of Agriculture, Fuzhou 350007
  • Received:2020-05-13 Revised:2020-11-10 Online:2021-03-05 Published:2021-03-17
  • Contact: Chen Chan E-mail:26517038@qq.com;107078605@qq.com

Abstract:

The paper aims to optimize the extraction process of flavonoids from Fujian bergamot by ultrasonicly method and study its antioxidation activity. The extraction process condition optimized by orthogonal experiments is: under the double frequency of ultrasonic frequency of 45 kHz and 80 kHz, the ratio of material to liquid of 1:35 (g:mL), the ethanol concentration of 60%, the ultrasonic power and ultrasonic temperature of 50 W and 50℃ respectively, and the extraction time of 80 min, the extraction yield of flavonoids could reach the highest of 3.33%. The scavenging effect of Fujian bergamot flavonoids on ·OH and O2-·are obvious and effective, but the antioxidant activity is weaker than that of Vc. When the solubility of Fujian bergamot flavonoids is 1.4 mg/mL, the scavenging rate is 54.4% and 39.2%, respectively.

Key words: bergamot, flavonoids, ultrasound, extraction, antioxidation activity

CLC Number: