The composition and activity analysis of polysaccharides from Erythropalum scandens Bl. stems and leaves

doi:10.14088/j.cnki.issn0439-8114.2025.12.024

Abstract

Abstract: The monosaccharide composition of polysaccharides from four different parts (old stem, young stem, old leaf, and young leaf) of Erythropalum scandens Bl. was determined using pre-column derivatization high-performance liquid chromatography (HPLC). Their antioxidant properties were comprehensively evaluated by assessing the scavenging capacities against DPPH·, ABTS⁺·, and superoxide anion radical (O2-·), as well as the ferric ion reducing antioxidant power (FRAP) assay, to screen for highly active polysaccharide components. The results showed that Erythropalum scandens polysaccharides were primarily composed of ten monosaccharides: Namely, mannose, glucosamine, ribose, rhamnose, glucuronic acid, galacturonic acid, glucose, galactose, xylose, and arabinose. Xylose was not detected in the young stem polysaccharides, but was present in the old stem, old leaf, and young leaf polysaccharides. The total sugar content followed the order of old stem > young stem > young leaf > old leaf. The in vitro antioxidant assays indicated that polysaccharides from all parts exhibited scavenging activity against DPPH·, ABTS⁺·, and O2-·, as well as ferric ion reducing power. Among them, the old stem polysaccharide demonstrated superior antioxidant activity compared to the other parts.

Key words: Erythropalum scandens Bl., polysaccharides, monosaccharide analysis, antioxidant activity

CLC Number:

R284.1
Q539

WANG Wei-rui, WEI Bing-an, PAN Qiao-dan, HUANG Yuan-he, ZHAO Li-yang, XU Ying-ying. The composition and activity analysis of polysaccharides from Erythropalum scandens Bl. stems and leaves[J]. HUBEI AGRICULTURAL SCIENCES, 2025, 64(12): 146-151.

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