红椒多酚类物质的鉴定及抗氧化能力研究

Mónica Ramos Escudero, D. Escudero, C. Remsberg, Jody K. Takemoto, N. Davies, J. Yáñez
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引用次数: 21

摘要

采用液相色谱-质谱-电喷雾电离(LC-MS-ESI)联用技术对来自秘鲁热带雨林5个亚区胡椒叶乙醇提取物中的多酚含量进行了测定。抗氧化能力估计使用DPPH自由基清除试验。此外,还对其还原能力(将fe3 +还原为fe2 +的能力)、清除过氧化氢的能力和总多酚含量进行了评价。鉴定出没食子酸、儿茶素、绿原酸、表儿茶素、芦丁、槲皮素、连根素、槲皮素和连根素,并测定其抗氧化能力。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Identification of Polyphenols and Anti-Oxidant Capacity of Piper aduncum L
Ethanol extracts of Piper aduncum L. leaves from five sub-regions in the tropical Peruvian rainforest were as- sessed for polyphenol content utilizing liquid chromatography coupled with mass spectrometry with electrospray ioniza- tion (LC-MS-ESI). The anti-oxidant capacity was estimated using a DPPH radical scavenging assay. Additionally, the re- ducing power (capacity to reduce Fe 3+ to Fe 2+ ), the capacity to scavenge hydrogen peroxide and the total polyphenol con- tent, were assessed. Analysis led to the identification of gallic acid, catechin, chlorogenic acid, epicatechin, rutin, querci- trin, phloridzin, quercetin, and phloretin, as well as determination of potent anti-oxidant capacities by P. aduncum L.
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