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γ-Irradiation effects on the physicochemical properties and biological activities of Schizophyllum commune polysaccharides

文献类型： 外文期刊

作者： Li, Chen 1 ; Zhang, Qi 2 ; Yin, Chaomin 2 ; Gao, Hong 2 ; Fan, Xiuzhi 2 ; Shi, Defang 2 ; Li, Zhenshun 3 ; Qiu, Jianhui 2 ; Chen, Sheng 5 ; Hu, Guoyuan 1 ;

作者机构： 1.Wuhan Inst Technol, Sch Environm Ecol & Biol Engn, Wuhan 430205, Peoples R China

2.Hubei Acad Agr Sci, Key Lab Cold Chain Logist Technol Agroprod, Minist Agr & Rural Affairs, Inst Agroprod Proc & Nucl Agr Technol, Wuhan 430064, Peoples R China

3.Yangtze Univ, Coll Life Sci, Jingzhou 434025, Peoples R China

4.Res Ctr Under Forest Econ Hubei Prov, Wuhan 430064, Peoples R China

5.Hubei Haowei Technol Co Ltd, Zhongxiang 448000, Peoples R China

6.Hubei Acad Agr Sci, Inst Agroprod Proc & Nucl Agr Technol, Wuhan 430064, Peoples R China

关键词： Polysaccharides; gamma-irradiation; Physicochemical and structure properties; Antioxidant activities

期刊名称：RADIATION PHYSICS AND CHEMISTRY （ 影响因子：2.9； 五年影响因子：2.7 ）

ISSN： 0969-806X

年卷期： 2024 年 221 卷

页码：

收录情况： SCI

摘要： In this study, the effects of gamma-irradiation on the physicochemical and structure properties as well as the biological activities of Schizophyllum commune polysaccharides were investigated. The results demonstrated that the total carbohydrate content, solubility, fat binding ability and foaming capability of polysaccharides were increased with the increasing gamma-irradiation dose, while the average molecular weight of polysaccharides showed the contrary trend and it significantly decreased from 11.96 to 4.16 kDa. Mannose, glucose and xylose were the main monosaccharides of polysaccharides and gamma-irradiation treatment hardly changed monosaccharide composition, but significantly affected the molar ratio of monosaccharides. gamma-Irradiation treatment slightly improved the crystallinity of polysaccharides, and low-dose gamma-irradiation treatment (4 and 8 kGy) could increase the zeta potential thus improved the stability of polysaccharides solution. Moreover, gamma-irradiation treatment influenced the color and the surface topography of polysaccharides but had less impact on the triple helix structure. High dose gamma-irradiation treatment (8-16 kGy) decreased the thermal stability of polysaccharides as well as the scavenging activity of ABTS radicals. These findings provide valuable insights into the physicochemical modification of polysaccharides via the gamma-irradiation.

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