Phenolic Antioxidants from the Leaves of Camellia pachyandra Hu.
Gao, Da-Fang1,2; Xu, Min1; Yang, Chong-Ren1; Xu, Mei3; Zhang, Ying-Jun1
2010-08-11
发表期刊JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
ISSN0021-8561
卷号58期号:15页码:8820-8824
摘要Camellia pachyandra Hu. is a species in Camellia sect. Heterogenea (Theaceae), whose leaves have been used for making tea and consumed by the local people living in Yunnan province, China. This is the first investigation of the chemical constituents in the leaves of C. pachyandra, from which 22 phenolic compounds including nine hydrolyzable tannins (1-9), 11 flavonol glycosides (10-20), and two simple phenolics (21, 22) were isolated. It was noted that the leaves of the title plant contained no caffeine and no catechin, whereas hydrolyzable tannins were found to be the major constituents, of which the content of ellagitannin 5 reached to 3.7%. All the isolates were evaluated for their antioxidant activities by DPPH radical scavenging and tyrosinase inhibitory assays. Though the secondary metabolites without caffeine and catechins are different from the commonly consumed tea plants, the results suggested that the leaves of C. pachyandra, rich in hydrolyzable tannins as potent antioxidants, could be developed as an ideal resource for a natural beverage without caffeine.
关键词Camellia Pachyandra Hu Camellia Sect. Heterogenea Hydrolyzable Tannins Flavonol Glycosides Antioxidants
资助信息Yunnan Provincial Forestry Department, China ; NSFC [30970287, 2007BAD58B04]
学科领域Agriculture, Multidisciplinary ; Chemistry, Applied ; Food Science & Technology
DOI10.1021/jf101490r
收录类别SCI
语种英语
WOS研究方向Agriculture ; Chemistry ; Food Science & Technology
WOS类目Agriculture, Multidisciplinary ; Chemistry, Applied ; Food Science & Technology
WOS记录号WOS:000280471800047
引用统计
被引频次:14[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.kib.ac.cn/handle/151853/4946
专题植物化学与西部植物资源持续利用国家重点实验室
作者单位1.Chinese Acad Sci, Kunming Inst Bot, State Key Lab Phytochem & Plant Resources W China, Kunming 650204, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
3.Yunnan Acad Agr Sci, Tea Res Inst, Menghai 666200, Peoples R China
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Gao, Da-Fang,Xu, Min,Yang, Chong-Ren,et al. Phenolic Antioxidants from the Leaves of Camellia pachyandra Hu.[J]. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY,2010,58(15):8820-8824.
APA Gao, Da-Fang,Xu, Min,Yang, Chong-Ren,Xu, Mei,&Zhang, Ying-Jun.(2010).Phenolic Antioxidants from the Leaves of Camellia pachyandra Hu..JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY,58(15),8820-8824.
MLA Gao, Da-Fang,et al."Phenolic Antioxidants from the Leaves of Camellia pachyandra Hu.".JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 58.15(2010):8820-8824.
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