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Chemical Modification of Rosa roxbunghii Tratt. Polysaccharide and Their Antioxidant and Hypoglycemic Activities
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Zhixuan JIANG1, Zifu CAI1, Sisi DONG1, Xinwen HU1, Cun CHEN1, Chengming ZHANG1, 2, Juan ZHAO1, 2, Hongling LIU1, 2, Yong WU1, 2, 3, *
Science and Technology of Food Industry | 2026, 47(2) : 94 - 103
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Science and Technology of Food Industry | 2026, 47(2): 94-103
• Research and Investigation •
Chemical Modification of Rosa roxbunghii Tratt. Polysaccharide and Their Antioxidant and Hypoglycemic Activities
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Zhixuan JIANG1, Zifu CAI1, Sisi DONG1, Xinwen HU1, Cun CHEN1, Chengming ZHANG1, 2, Juan ZHAO1, 2, Hongling LIU1, 2, Yong WU1, 2, 3, *
Affiliations
  • 1College of Chemistry and Life Science, Chengdu Normal University, Chengdu 611130, China
  • 2Sichuan Provincial Key Laboratory of Philosophy and Social Sciences for Monitoring and Evaluation of Rural Land Utilization, Chengdu 611130, China
  • 3Sichuan Provincial Key Laboratory for Development and Utilization of Characteristic Horticultural Biological Resources, Chengdu 611130, China
Published: 2026-01-15 doi: 10.13386/j.issn1002-0306.2025020006
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To improve the functional properties of Rosa roxburghii Tratt. polysaccharide (RTFP), this study prepared crude polysaccharides (RTFP-40, RTFP-60) using water extraction, which were then separated, purified, and chemically modified to obtain sulfated polysaccharides (S-RTFP-40, S-RTFP-60) and phosphorylated polysaccharides (P-RTFP-40, P-RTFP-60). The effects of chemical modification on their structure and bioactivity were explored through in vitro antioxidant and hypoglycemic experiments. The results showed that both modifications could significantly alter the triple-helix structure of the RTFP-40 and RTFP-60 extracts and introduce sulfate and phosphate groups into the polysaccharide structure. Both modifications significantly improved the in vitro hypoglycemic ability of Rosa roxburghii polysaccharides, with the GDRI indices of S-RTFP-60 and P-RTFP-60 increasing by 8.27% and 3.73%, respectively. All four derivatives enhanced the inhibitory effect on α-amylase, with S-RTFP-40 and S-RTFP-60 increasing it by 15.19% and 41.53%, respectively. Excessive phosphorylation had a negative effect on antioxidant activity. Comparatively, sulfation was more effective than phosphorylation in enhancing both antioxidant and hypoglycemic activities of the polysaccharides, with S-RTFP-60 showing a notable increase in vitro hypoglycemic activity. In summary, sulfation modification is suitable for improving the hypoglycemic activity of Rosa roxburghii polysaccharides.

Rosa roxbunghii Tratt. polysaccharide  /  separation and purification  /  chemical modification  /  bioactivity  /  hypoglycemic activity in vitro
姜志炫, 蔡自富, 董思思, 胡馨文, 陈存, 张城铭, 赵娟, 刘红玲, 伍勇. 刺梨多糖的化学修饰及其抗氧化和降血糖活性分析. 食品工业科技, 2026 , 47 (2) : 94 -103 . DOI: 10.13386/j.issn1002-0306.2025020006
Zhixuan JIANG, Zifu CAI, Sisi DONG, Xinwen HU, Cun CHEN, Chengming ZHANG, Juan ZHAO, Hongling LIU, Yong WU. Chemical Modification of Rosa roxbunghii Tratt. Polysaccharide and Their Antioxidant and Hypoglycemic Activities[J]. Science and Technology of Food Industry, 2026 , 47 (2) : 94 -103 . DOI: 10.13386/j.issn1002-0306.2025020006
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Year 2026 volume 47 Issue 2
103
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Article Info
doi: 10.13386/j.issn1002-0306.2025020006
  • Receive Date：2025-02-08
  • Online Date：2026-10-24
  • Published：2026-01-15
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  • Received：2025-02-08
Affiliations
    1College of Chemistry and Life Science, Chengdu Normal University, Chengdu 611130, China
    2Sichuan Provincial Key Laboratory of Philosophy and Social Sciences for Monitoring and Evaluation of Rural Land Utilization, Chengdu 611130, China
    3Sichuan Provincial Key Laboratory for Development and Utilization of Characteristic Horticultural Biological Resources, Chengdu 611130, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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