首页> 美国卫生研究院文献>International Journal of Molecular Sciences >Characterization and Antioxidant Properties of Six Algerian Propolis Extracts: Ethyl Acetate Extracts Inhibit Myeloperoxidase Activity
【2h】

Characterization and Antioxidant Properties of Six Algerian Propolis Extracts: Ethyl Acetate Extracts Inhibit Myeloperoxidase Activity

机译:六种阿尔及利亚蜂胶提取物的表征和抗氧化特性:乙酸乙酯提取物抑制髓过氧化物酶活性

代理获取
本网站仅为用户提供外文OA文献查询和代理获取服务,本网站没有原文。下单后我们将采用程序或人工为您竭诚获取高质量的原文,但由于OA文献来源多样且变更频繁,仍可能出现获取不到、文献不完整或与标题不符等情况,如果获取不到我们将提供退款服务。请知悉。

摘要

Because propolis contains many types of antioxidant compounds such as polyphenols and flavonoids, it can be useful in preventing oxidative damages. Ethyl acetate extracts of propolis from several Algerian regions show high activity by scavenging free radicals, preventing lipid peroxidation and inhibiting myeloperoxidase (MPO). By fractioning and assaying ethyl acetate extracts, it was observed that both polyphenols and flavonoids contribute to these activities. A correlation was observed between the polyphenol content and the MPO inhibition. However, it seems that kaempferol, a flavonoid, contributes mainly to the MPO inhibition. This molecule is in a high amount in the ethyl acetate extract and demonstrates the best efficiency towards the enzyme with an inhibiting concentration at 50% of 4 ± 2 μM.
机译:由于蜂胶含有多种类型的抗氧化剂,例如多酚和类黄酮,因此可用于防止氧化损伤。来自几个阿尔及利亚地区的蜂胶的乙酸乙酯提取物具有清除自由基,防止脂质过氧化和抑制髓过氧化物酶(MPO)的高活性。通过分馏和分析乙酸乙酯提取物,发现多酚和类黄酮均对这些活性有贡献。在多酚含量和MPO抑制之间观察到相关性。然而,似乎山萘酚,一种类黄酮,主要是对MPO的抑制作用。该分子在乙酸乙酯提取物中的含量很高,并且在抑制浓度为4±2μM的50%时显示出对酶的最佳效率。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
代理获取

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号