首页|3种苏铁属植物总黄酮、总多糖含量及抗氧化活性研究

3种苏铁属植物总黄酮、总多糖含量及抗氧化活性研究

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为探究锈毛苏铁(Cycas ferruginea)、叉孢苏铁(C.segmentifida)和石山苏铁(C.sexseminifera)3种苏铁属(Cycas)植物的总黄酮、总多糖含量以及抗氧化活性,本研究采用超声波辅助法对其根、叶柄、叶、雄球花、茎干的总黄酮及总多糖含量进行提取,以DPPH自由基(DPPH·)、羟自由基(·OH)、超氧阴离子自由基(O2·)清除率评价其抗氧化活性,并采用Pearson相关性分析法分析相关性.结果表明:锈毛苏铁、叉孢苏铁和石山苏铁叶的总黄酮含量较高,大小依次为锈毛苏铁(8.61 mg·100 mg-1)＞叉孢苏铁(7.82 mg·100 mg-1)＞石山苏铁(1.04 mg·100 mg-1);茎干中总多糖含量最高,大小依次为叉孢苏铁(28.32 mg·100 mg-1)＞石山苏铁(24.43 mg·100 mg-1)＞锈毛苏铁(16.59 mg·100 mg-1).锈毛苏铁与叉孢苏铁叶对DPPH·的清除能力较好,3种苏铁属植物各个部位对·OH的清除率能力均较差,叉孢苏铁根对O2-·的清除能力较好.综上,3种苏铁属植物各部位抗氧化活性主要与黄酮含量有关,该研究可为广西苏铁属植物的综合利用提供科学依据.
Study on the Content of Total Flavonoids and Total Polysaccha-rides and Antioxidant Activity in Three Species of Cycas Plants
In order to investigate the contents of total flavonoids,and total polysaccharides and antioxidant ac-tivities in three species of Cycas plants,C.ferruginea,C.segmentifida and C.sexseminifera,the contents of total flavonoids and total polysaccharides from their roots,petioles,leaves,male flowers and stems were extracted by ultrasonic-assisted method,and their antioxidant activities were evaluated by DPPH free radical(DPPH·),hydroxyl radical(-OH)and superoxide anion radical(O2-·)scavenging rates.Pearson correla-tion analysis was used to analyze correlation.The results showed that the contents of total flavonoids in the leaves of C.ferruginea,C.segmentifida and C.sexseminifera were relatively higher,and the order was C.ferruginea(8.61 mg·100 mg-1)＞C.segmentifida(7.82 mg·100 mg-1)＞C.sexseminifera(1.04 mg· 100 mg-1).The content of total polysaccharides in the stems was the highest,and the order was C.segmen-ti fida(28.32 mg·100 mg-1)＞C.sexseminifera(24.43 mg·100 mg-1)＞C.ferruginea(16.59 mg·100 mg-1).The scavenging ability of DPPH·was better in the leaves of C.ferruginea and C.segmentifida.The scavenging ability of·OH was poor in all parts of the three species of Cycas plants,and the scavenging ability of O2-·was better in the roots of C.segmentifida.In summary,the antioxidant activity of each part of the three Cycas plants is mainly related to the content of flavonoids.This study can provide a scientific ba-sis for the comprehensive utilization of Cycas plants in Guangxi.

Cycas ferrugineaCycas segmentifidaCycas sexseminiferaflavonoidspolysaccharidesantioxi-dant activity

陈泰国、韦霄、唐健民、邹蓉

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桂林医学院药学院,广西桂林 541004

广西壮族自治区中国科学院广西植物研究所,广西植物功能物质与资源持续利用重点实验室,广西桂林 541006

锈毛苏铁 叉孢苏铁 石山苏铁 黄酮 多糖 抗氧化活性

国家重点研发计划项目国家自然科学基金项目国家自然科学基金项目中国科学院"西部之光"计划(2022)广西林业科技推广示范项目广西林业科技推广示范项目广西植物功能物质与资源持续利用重点实验室自主项目桂林市创新平台和人才计划项目

2022YFF130070332160091320602482023LYKJ03[2022]GT23ZRJJ2022-220210102-3

2024

10.13657/j.cnki.gxkxyxb.20240319.006

广西科学院学报
广西科学院

广西科学院学报

影响因子：0.27
ISSN：1002-7378
年,卷(期)：2024.40(1)
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