Physicochemical evaluation, structural characterization, in vitro and in vivo bioactivities of water-soluble polysaccharides from Luobuma ( Apocynum L.) tea

文献类型： 外文期刊

第一作者： Abubakar, Aminu Shehu

作者： Abubakar, Aminu Shehu;Ahmad, Nabi;Liu, Liangliang;Qu, Yatong;Chen, Jikang;Chen, Ping;Zhao, Haohan;Chen, Jia;Chen, Kunmei;Gao, Gang;Zhu, Aiguo;Abubakar, Aminu Shehu;Ahmad, Bilal;Liu, Bin;Qu, Yatong;Chen, Jikang;Chen, Ping;Zhao, Haohan;Chen, Jia;Chen, Kunmei;Gao, Gang;Zhu, Aiguo;Chen, Jikang;Chen, Ping;Zhao, Haohan;Chen, Jia;Chen, Kunmei;Gao, Gang;Zhu, Aiguo

作者机构：

关键词： Luobuma tea; Apocynum sp.; Polysaccharides; Carrageenan-induced edema; Nitric oxide; Interleukin-6; Antioxidants; Anti-inflammatory

期刊名称：FOOD CHEMISTRY （ 影响因子：8.5； 五年影响因子：8.2 ）

ISSN： 0308-8146

年卷期： 2024 年 460 卷

页码：

收录情况： SCI

摘要： Luobuma tea is made from the leaves of Apocynum hendersonii (Bt) and A. venetum (Ht) and has been used for a very long time in China and Japan as herbal tea. This study isolated water-soluble polysaccharides from the two species` teas. Physicochemical properties, structural properties, in vitro and in vivo antioxidant and immunomodulatory activities were determined for the first time. The results showed that the Bt and Ht polysaccharides with molecular weights of 31.21 and 49.11 kDa, respectively, composed of arabinose, galactose, rhamnose, glucose, xylose, fucose, and mannose. A dose-dependent nitric oxide production and interleukin-6 inhibitory effects were obtained. Also, they suppressed the expression of cyclooxygenase-2, tumor necrosis factor-alpha and interleukin-6 mRNA in LPS-induced RAW 264.7 macrophages. Likewise, Bt and Ht have significantly reduced edema in the paws of mice after carrageenan injection. These results suggested that the Luobuma teas polysaccharides can be explored as potential antioxidants and anti-inflammatory agents.

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