Ultrasonic-Assisted Extraction of Polysaccharides from Ginseng Flower and Their Antioxidant Activity in vitro

doi:10.7506/spkx1002-6630-201506014

Abstract

Abstract:

Based on single factor experiments, the ultrasonic-assisted extraction process for crude water-soluble
polysaccharides (μGFL) from dry ginseng flower was optimized with response surface methodology. The in vitro antioxidant
activity of polysaccharides extracted from ginseng flower was determined. The optimal extraction conditions were obtained
as follows: ultrasonic power, 586 W; extraction duration, 18.65 min; and material/liquid ratio, 1:19.75. Under these
conditions, the extraction yield of polysaccharides from ginseng flower was (5.20 ± 0.17)% (n = 3). The ginseng flower
polysaccharides showed potential scavenging activity against 1,1-diphenyl-2-picrylhydrazxyl (DPPH), hydroxyl and
superoxide anionradical in a concentration-dependent manner. This study indicates that ginseng flower polysaccharides are a
good source of natural antioxidants.

Key words: ginseng flower polysaccharides, ultrasonic treatment, response surface methodology, process optimization, antioxidant activities

CLC Number:

Q946.3

ZHOU Sisi1, WANG Yuyuan2, LIU Dan1, ZHANG Yimin1, LIU Siyu1, WANG Xiaoqing1,*, ZENG Xiaoxiong1,*. Ultrasonic-Assisted Extraction of Polysaccharides from Ginseng Flower and Their Antioxidant Activity in vitro[J]. FOOD SCIENCE, doi: 10.7506/spkx1002-6630-201506014.

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Ultrasonic-Assisted Extraction of Polysaccharides from Ginseng Flower and Their Antioxidant Activity in vitro

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