苇蘑子实体提取物的抗辐射作用及抗氧化活性

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英文篇名：Antioxidant and Antiradiation Activities of Extracts from a Novel Edible Fungus Hygrophoropsis sp. 作者：李春霞 ; 杨红澎 ; 黄亮 ; 班立桐 ; 孙宁 ; 王玉 ; 赵振倩 英文作者：LI Chunxia;YANG Hongpeng;HUANG Liang;BAN Litong;SUN Ning;WANG Yu;ZHAO Zhenqian;College of Agronomy and Resources Environmental,Tianjin Agricultural University; 关键词：乙醇提取物 ; 水提取物 ; 抗紫外辐射 ; 抗氧化损伤 英文关键词：Ethanol extract;;water extract;;anti-UV;;anti-oxidation 中文刊名：SYJB 英文刊名：Acta Edulis Fungi 机构：天津农学院农学与资源环境学院; 出版日期：2019-06-15 出版单位：食用菌学报 年：2019 期：v.26 基金：天津市蔬菜产业技术体系创新团队项目(ITTVRS 2017015);; 天津市教委科技项目(20140607) 语种：中文; 页：SYJB201902013 页数：5 CN：02 ISSN：31-1683/S 分类号：95-99

摘要

以酿酒酵母(Saccharomyces cerevisiae)细胞经紫外辐射和过氧化氢溶液处理后的存活率为指标,考察苇蘑(Hygrophoropsis sp.)子实体提取物的抗辐射和抗氧化能力。结果表明:在紫外辐射120 s的条件下,苇蘑子实体乙醇提取物添加量为4%时,酿酒酵母细胞的存活率可达54.1%,添加4%苇蘑子实体水提取物后,酿酒酵母细胞存活率为43.9%;对照组(不添加苇蘑子实体提取物)的存活率为4.6%;在140 mmol/L过氧化氢溶液处理下,苇蘑子实体水提取物浓度在0.5%～2.5%时,酿酒酵母细胞存活率从11.4%增加到47.4%;而苇蘑子实体水提取物浓度超过2.5%时,细胞存活率反而降低。在相同的过氧化氢处理时间下,添加1%苇蘑子实体提取物后,酿酒酵母细胞的存活率均显著高于对照组。
        Survival rate of S.cerevisiae treated by ultraviolet irradiation or hydrogen peroxide solution was studied as an indicator to investigate the anti-radiation and anti-oxidation activities of extracts from Hygrophoropsis sp.The results showed that,under UV irradiation for 120 s,the survival rates of S. cerevisiae were 54.1% and 43.9% respectively when added with 4% ethanol or water extracts,while the survival rate of the control group(no extract added)was 4.6%.The survival rate of S.cerevisiae cells increased from 11.4% to 47.4% when added with 0.5%-2.5% water extract in 140 mmol/L hydrogen peroxide solution,while decreased when the water extract concentration exceeded 2.5%.Under the same peroxide treatment time,the survival rate of S.cerevisiae cells added with 1% extract was significantly higher than that of control group.

引文

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