Antioxidant and hypoglycemic activities of different graded fractions of polysaccharide from goldenmelon

Authors

CHEN Bing-jie, Institute of Crop Breeding and Cultivation, Shanghai Academy of Agriculture Sciences, Shanghai 201403, China;Agri-Food Storage and Processing Engineering Technology Research Center of Shanghai, Shanghai 201403, China
QIAO Yong-jin, Institute of Crop Breeding and Cultivation, Shanghai Academy of Agriculture Sciences, Shanghai 201403, China;Agri-Food Storage and Processing Engineering Technology Research Center of Shanghai, Shanghai 201403, ChinaFollow
WANG Xiao, Institute of Crop Breeding and Cultivation, Shanghai Academy of Agriculture Sciences, Shanghai 201403, China;Agri-Food Storage and Processing Engineering Technology Research Center of Shanghai, Shanghai 201403, China
WANG Chun-fang, Institute of Crop Breeding and Cultivation, Shanghai Academy of Agriculture Sciences, Shanghai 201403, China;Agri-Food Storage and Processing Engineering Technology Research Center of Shanghai, Shanghai 201403, China
LIU Gui-ge, Institute of Crop Breeding and Cultivation, Shanghai Academy of Agriculture Sciences, Shanghai 201403, China;Agri-Food Storage and Processing Engineering Technology Research Center of Shanghai, Shanghai 201403, China

Corresponding Author(s)

乔勇进（1967—），男，上海市农业科学院研究员，博士。E-mail: yjqiao2002@126. com

Abstract

Objective: The study aimed to research the physicochemical properties, structure, antioxidant activity and hypoglycemic activity of different fractions of polysaccharide of goldenmelon. Methods: Four kinds of goldenmelon polysaccharides (CP-40, CP-60, CP-70, CP-80) were obtained by graded purification of water extraction and alcoholic precipitation. Their molecular weight, monosaccharide composition, group composition, antioxidant and hypoglycemic activities were investigated by high performance liquid chromatography and fourier transform infrared spectroscopy. Results: With the increase of ethanol volume fraction, the total sugar content increased and the glucuronic acid content decreased. The molecular weights of these four polysaccharides were different, which indicated by the same composition of monosaccharides but different composition ratios, and they all had the characteristic absorption peaks of polysaccharides. The antioxidant capacity and hypoglycemic activity of the polysaccharides in vitro had obvious quantity-effect relationships, CP-70 had the strongest antioxidant effect on DPPH radicals, hydroxyl radicals and superoxide anions scavenging than other groups, while CP-80 had the best hypoglycemic activity since it had the strongest inhibitory effects on α-glucosidase and α-amylase. Conclusion: The polysaccharide of goldenmelon had good antioxidant properties and hypoglycemic activity.

Publication Date

10-20-2023

First Page

165

Last Page

171

DOI

10.13652/j.spjx.1003.5788.2022.81093

Recommended Citation

Bing-jie, CHEN; Yong-jin, QIAO; Xiao, WANG; Chun-fang, WANG; and Gui-ge, LIU (2023) "Antioxidant and hypoglycemic activities of different graded fractions of polysaccharide from goldenmelon," Food and Machinery: Vol. 39: Iss. 7, Article 25.
DOI: 10.13652/j.spjx.1003.5788.2022.81093
Available at: https://www.ifoodmm.cn/journal/vol39/iss7/25

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