文献类型： 外文期刊

作者： Zhao, Zhe-Han ¹ ; Ju, Xian-Yan ² ; Wang, Kui-Wu ¹ ; Chen, Xin-Juan ³ ; Sun, Hong-Xiang ⁴ ; Cheng, Ke-Jun ⁵ ;

作者机构： 1.Zhejiang Gongshang Univ, Sch Food Sci & Biotechnol, Hangzhou 310018, Peoples R China

2.Hangzhou Fuchun 9 Primary Sch, Hangzhou 311400, Peoples R China

3.Zhejiang Acad Agr Sci, Inst Vegetable, Hangzhou 310021, Peoples R China

4.Zhejiang Univ, Coll Anim Sci, Hangzhou 310058, Peoples R China

5.Lishui Inst Agr & Foresty Sci, Chem Biol Ctr, Lishui 323000, Peoples R China

关键词： Pteridium aquilinum; Pteridaceae; structure characterization; antioxidant activity; immunomodulatory activity

期刊名称：FOODS （ 影响因子：5.561； 五年影响因子：5.94 ）

ISSN：

年卷期： 2022 年 11 卷 13 期

页码：

收录情况： SCI

摘要： Pteridium aquilinum (L.) Kuhn (Pteridaceae family) has been widely used as a food and medicine in China and Korea. Previous studies indicate that P. aquilinum contains a variety of bioactive chemical components such as flavonoids, phenols, terpenoids, saponins, polysaccharides, and so on. In the present study, a novel polysaccharide (named as PAP-3) with average molecular weight of 2.14 Chi 10(5) Da was obtained from P. aquilinum. The structure was studied through physicochemical and spectroscopic analysis. The results indicated that PAP-3 consists of arabinose, rhamnose, fucose, galactose, mannose, and xylose in a molar ratio of 1.58:1.00:3.26:4.57:4.81:3.33. The polysaccharide is mainly composed of (1 -> 2)-linked xylose and (1 -> 3,6)-linked mannose on the main chain, with (1 -> 2)-linked xylose, (1 -> 6)-linked mannose, and (1 -> 6)- and (1 -> 3,6)-linked galactose as side chains. Galactose, fucose, and xylose are located at the end of the side chains. The in vitro immunomodulatory and antioxidant activities were assayed. PAP-3 has strong free-radical scavenging activity on DPPH and ABTS radicals and significant immunomodulatory activity on RAW264.7 cells. These data provide useful information for further study on the polysaccharides of P. aquilinum and their applications in the food and medical industries.