FOOD SCIENCE ›› 2009, Vol. 30 ›› Issue (10): 56-59.doi: 10.7506/spkx1002-6630-200910008

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Studies on Microwave-assisted Extraction of Total Flavonoids from Cryptotaenia japonica Hassk and Their Anti-oxidation Properties

ZHOU Zhi1,MO Kai-ju1,LIN Chun-xiao2,WANG Xing-ping1,*,TIAN Cheng1,CHEN Ye1   

  1. (1. School of Biological Science and Technology, Hubei University for Nationalities, Enshi 445000, China;
    2. Guangdong Strong Group Co. Ltd., Shenzhen 518031, China)
  • Received:2008-08-08 Revised:2008-12-02 Online:2009-05-15 Published:2010-12-29
  • Contact: WANG Xing-ping1,*,


Crushed Cryptotaenia japonica Hassk was defatted with petroleum ether by heat trflux method. After dried at 60 ℃, the defatted Cryptotaenia japonica Hassk was used to extract total flavonoids with deionized water under the assistance of microwave. The microwave-assisted extraction technology of total flavonoids from defatted Cryptotaenia Japonica Hassk was optimized and their anti-oxidation properties were discussed in this study. The results demonstrated that the optimal extraction comditions were as follows: particle size of defatted Cryptotaenia japonica Hassk 80 mesh, material to loquid tatio 1:30 (W/V), extraction time 4 min, and extraction times 3. The crude flavonoids extract from Cryptotaenia japonica Hassk exhibited higher reducing power and hydroxyl radical scavenging capacity.

Key words: Cryptotaenia japonica Hassk, flavonoid, microwave extraction, anti-oxidation

CLC Number: