当前位置: 首页 > 文章 > 顶孢霉发酵液提取物清除自由基能力的研究 食品工业科技 2010,31 (11) 155-157+423
Position: Home > Articles > Study on radical scavenging ability of fermentation broth extracts of Acremonium sp. Science and Technology of Food Industry 2010,31 (11) 155-157+423

顶孢霉发酵液提取物清除自由基能力的研究

作  者:
程洁;陈双林
单  位:
江苏省微生物资源产业化工程技术研究中心;江苏省微生物资源产业化工程技术研究中心,江苏省生物多样性与生物技术重点实验室,南京师范大学生命科学学院
关键词:
顶孢霉;抗氧化活性;自由基
摘  要:
为了研究筛选出的具有抗氧化活性的2株顶孢霉的发酵液提取物清除自由基的能力,本研究制备了2株顶孢霉的发酵液提取物,比较了其清除O2-·、·OH和DPPH·三种自由基的能力。结果表明:2株顶孢霉发酵液提取物的相对还原力(即总抗氧化活性)均显著高于维生素E;对O2-·自由基的清除率也均高于维生素E,其中,菌株YX015更为高效,在1.0mg/mL浓度时对O2-·自由基的清除率达到49.15%;2菌株清除·OH和DPPH·的能力均显著弱于维生素E,但都高于其自身清除O2-·的能力,在浓度达到1.0mg/mL时,菌株CA022对·OH的清除率为60.43%;菌株YX015对·OH的清除率为83.33%。
译  名:
Study on radical scavenging ability of fermentation broth extracts of Acremonium sp.
作  者:
CHENG Jie,CHEN Shuang-lin (Jiangsu Engineering and Technology Research Center for Industrialization of Microbial Resources,Jiangsu Key Laboratory for Biodiversity and Biotechnology,College of Life Science,Nanjing Normal University,Nanjing 210046,China)
关键词:
Acremonium;antioxidant activity;radicals
摘  要:
Fermentation broth extracts of 2 strains of Acremonium sp. was prepared. Their radical scavenging ability was studied and compared. The results showed that fermentation broth extracts of 2 strains of Acremonium sp. had stronger reducing power(i. e. total antioxidant capacity)than Vitamin E. They also had greater abilities than Vitamin E in scavenging O-2·. The strain YX015 was better and its scavenging rate was 49. 15% at the concentration of 1. 0mg/mL. The scavenging effects of the 2 strains on ·OH and DPPH· was notably weaker than Vitamin E,but stronger than scavenging effects of themselves on O-2·. At the concentration of 1. 0mg/mL,the scavenging rate of the strain CA022 to ·OH was 60. 43% and the scavenging rate of the strain YX015 to ·OH was 83. 33%.

相似文章

计量
文章访问数: 9
HTML全文浏览量: 0
PDF下载量: 0

所属期刊

推荐期刊