Preparation of Guiqi Polysaccharide and Antioxidant Activity In Vitro

Xiu Ying Pu; Heng Rui Wang; Wen Bo Fan; Shuang Yu

doi:10.4028/www.scientific.net/AMR.834-836.539

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 834-836Preparation of Guiqi Polysaccharide and...

Preparation of Guiqi Polysaccharide and Antioxidant Activity In Vitro

Abstract:

Polysaccharide extracts (ASP, AMP and GQP) were obtained by water extraction and ethyl alcohol deposition method from Angelica sinensis, Astragalus membranaceus and the mixture of Angelica sinensis and Astragalus membranaceus. And the total carbohydrate content of AMP, ASP and GQP was respectively determined to be 63.1%, 48.7% and 76.7% by phenol-sulfuric acid colorimetric method using glucose as the standard. The in vitro antioxidant activities of 3 polysaccharides were evaluated by free radical, superoxide radicals and DPPH free radical scavenging assay, respectively. Among 3 polysaccharides, GQP showed the highest antioxidant activity in vitro at 100-300 μg/mL. These results indicated that the GQP might be useful for developing natural safe antiaging drugs or health food.

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Periodical:

Advanced Materials Research (Volumes 834-836)

Pages:

539-542

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.834-836.539

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Online since:

October 2013

Authors:

Xiu Ying Pu*, Heng Rui Wang, Wen Bo Fan, Shuang Yu

Keywords:

Angelica sinensis Polysaccharide (ASP), Antioxidant, Astragalus membranaceus Polysaccharide (AMP), Guiqi Polysaccharide (GQP)

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