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投稿时间：2019-01-29
投稿时间：2019-01-29
中文摘要: 从2 份健康成人粪便中分离得到7 株植物乳杆菌，以DPPH 自由基清除率、超氧阴离子自由基清除率、羟自由基清除能力、耐受过氧化氢及还原能力为指标，研究7 株植物乳杆菌抗氧化活性；筛选获得清除自由基能力及耐受过氧化氢能力较强的2 号、3 号菌株；进一步研究发现，2 号菌株总抗氧化能力显著高于3 号菌株，但2 号、3 号菌株超氧化物歧化酶、还原型谷胱甘肽含量无显著差异。2 号、3 号菌株具有潜在的抗氧化活性，还需经过细胞抗氧化试验和动物试验进行验证。
Abstract:Seven Lactobacillus plantarum were isolated from 2 healthy adult faeces，and the antioxidant activities of the strains were assessed，by determining DPPH free radical scavenging rate，superoxide anion free radical scavenging rate，hydroxyl radical scavenging capacity，tolerance to hydrogen peroxide and reducing ability. The strains No.2 and No.3 showed higher oxygen radical scavenging abilities and hydrogen peroxide tolerance abilities. The further studies showed that the strain No.2 exhibited higher total antioxidant capacity than the strain No.3，but there was no significant difference in the superoxide dismutase，reduced glutathione content between the strains No.2 and No.3.The strains No.2 and No.3 showed potential antioxidant abilities and the antioxidant ability need to be verified by cell antioxidant test and animal test.
keywords: Lactobacillus antioxidant activity DPPH free radical superoxide anion free radical hydroxyl radical oxidative tolerance superoxide dismutase reduced glutathione
文章编号：201908035 中图分类号： 文献标志码：
基金项目:国家自然科学基金项目（31571813、31671828）；2018 新疆兵团重大科技计划后补助项目（2018AA009）
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