Antioxidant activity of organic extracts from aqueous infusions of sage
Antioxidant activity of organic extracts from aqueous infusions of sage
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DOI：
10.1021/jf034516o
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发表时间：
2003-11-05
影响因子：
6.1
通讯作者：
Salifoglou, A
中科院分区：
文献类型：
--
作者：
Matsingou, TC;Petrakis, N;Salifoglou, A
抗氧化活性的水浸泡的鼠尾草出现从特定的成分存在于该herb.In试图调查这些成分的化学性质和性质，四个有机溶剂提取物的鼠尾草水浸泡进行了检查。这些提取物的HPLC分析导致分离出许多组分，其中四种通过使用已知色谱HPLC图谱的标准化合物进行鉴定和定量。这些化合物是二萜鼠尾草酸，鼠尾草酚，迷迭香酚和羟基肉桂酸咖啡酸。测定了四种有机溶剂提取物和剩余水相部分的抗氧化活性和多酚含量。多酚类和非多酚类物质存在于提取物中出现作为显着的贡献者所观察到的衍生提取物的抗氧化活性，因此鼠尾草本身。从这个意义上说，它们反映了鼠尾草水浸液对通过铁促进氧化过程的可变机制产生的活性氧的抗氧化潜力。
The antioxidant activity of aqueous infusions of sage emerges from specific components present in that herb. In an attempt to investigate the chemical nature and properties of these components, four organic solvent extracts from aqueous infusions of sage were examined. HPLC analyses of these extracts led to the separation of a number of components, of which four were identified and quantified through the use of standard compounds of known chromatographic HPLC profiles. These compounds are the diterpenes carnosic acid, carnosol, and rosmanol and the hydroxycinnamic acid caffeic acid. The antioxidant activity and polyphenol content were determined in the four organic solvent extracts and the left-over aqueous fraction. Both polyphenolic and nonpolyphenolic substances present in the extracts arise as significant contributors to the observed antioxidant activity of the derived extracts and thus sage itself. In this sense, they reflect the antioxidant potential of the aqueous infusions of sage toward reactive oxygen species generated through variable mechanisms of iron-promoted oxidative processes.