Comparison of Major Phenolic Constituents and in Vitro Antioxidant Activity of Diverse Kudingcha Genotypes from Ilex kudingcha, Ilex cornuta, and Ligustrum robustum

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• 作者：Fan Zhu ; Yi-Zhong Cai ; Mei Sun ; Jinxia Ke ; Dayan Lu ; Harold Corke
• 刊名：Journal of Agricultural and Food Chemistry
• 出版年：2009
• 出版时间：July 22, 2009
• 年：2009
• 卷：57
• 期：14
• 页码：6082-6089
• 全文大小：806K
• 年卷期：v.57,no.14(July 22, 2009)
• ISSN：1520-5118

文摘

A total of seven Kudingcha genotypes from three plant species (Ilex kudingcha, Ilex cornuta, and Ligustrum robustum) with different geographic origins in China were investigated for their major phenolic compounds, individual and total phenolics contents, and in vitro antioxidant properties (ABTS, DPPH, FRAP, and OH assays). LC-PDA-APCI-MS analysis showed that Kudingcha genotypes from Ilex and Ligustrum had entirely different phenolic profiles. Major phenolics in Kudingcha genotypes from two Ilex species were mono- and dicaffeoylquinic acids, whereas those in a Kudingcha genotype from Ligustrum were phenylethanoid and monoterpenoid glycosides. All Kudingcha genotypes of Ilex exhibited significantly stronger antioxidant capacities than that of Ligustrum. Within six Ilex genotypes, great variation existed in their composition of individual phenolic compounds and their antioxidant properties. The comparative data and LC fingerprints obtained in this study may provide useful information for screening and breeding of better Kudingcha genotypes and also for their authentication and quality control.