Article: HPLC-DAD-MS/MS analysis of purine alkaloids and tea polyphenols in young leaves of Yinghong 1, Yinghong 9 and Qimen cultivars

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Title	HPLC-DAD-MS/MS analysis of purine alkaloids and tea polyphenols in young leaves of Yinghong 1, Yinghong 9 and Qimen cultivars
Authors	Lu, J3 Wang, D3 Miao, A2 Yang, D3 Chen, J1
Keywords	Catechins HPLC-DAD-MS/MS Purine alkaloids Qimen Tea polyphenols Yinghong 1 Yinghong 9
Issue Date	2009
Citation	Zhongshan Daxue Xuebao/Acta Scientiarum Natralium Universitatis Sunyatseni, 2009, v. 48 n. 1, p. 72-75 [How to Cite?]
Abstract	Using the HPLC-DAD-MS/MS method, two purine alkaloids, seven catechins, and two non-catechin type of polyphenols were identified in young leaves of Yinghong 1, Yinghong 9 and Qimen cultivars mainly made for black tea. According to the quantitative results, the contents of catechins in the leaves of Yinghong 1 and Qimen are similar, while Yinghong 9 is quite different, with ECG higher than EGCG.
ISSN	0529-6579 2011 SCImago Journal Rankings: 0.027
References	References in Scopus

DC Field	Value
dc.contributor.author	Lu, J
dc.contributor.author	Wang, D
dc.contributor.author	Miao, A
dc.contributor.author	Yang, D
dc.contributor.author	Chen, J
dc.date.accessioned	2010-05-31T04:18:47Z
dc.date.available	2010-05-31T04:18:47Z
dc.date.issued	2009
dc.description.abstract	Using the HPLC-DAD-MS/MS method, two purine alkaloids, seven catechins, and two non-catechin type of polyphenols were identified in young leaves of Yinghong 1, Yinghong 9 and Qimen cultivars mainly made for black tea. According to the quantitative results, the contents of catechins in the leaves of Yinghong 1 and Qimen are similar, while Yinghong 9 is quite different, with ECG higher than EGCG.
dc.description.nature	postprint
dc.identifier.citation	Zhongshan Daxue Xuebao/Acta Scientiarum Natralium Universitatis Sunyatseni, 2009, v. 48 n. 1, p. 72-75 [How to Cite?]
dc.identifier.epage	75
dc.identifier.hkuros	155515
dc.identifier.issn	0529-6579 2011 SCImago Journal Rankings: 0.027
dc.identifier.issue	1
dc.identifier.scopus	eid_2-s2.0-62249089435
dc.identifier.spage	72
dc.identifier.uri	http://hdl.handle.net/10722/60798
dc.identifier.volume	48
dc.language	eng/chi
dc.relation.ispartof	Zhongshan Daxue Xuebao/Acta Scientiarum Natralium Universitatis Sunyatseni
dc.relation.references	References in Scopus
dc.rights	Creative Commons: Attribution 3.0 Hong Kong License
dc.subject	Catechins
dc.subject	HPLC-DAD-MS/MS
dc.subject	Purine alkaloids
dc.subject	Qimen
dc.subject	Tea polyphenols
dc.subject	Yinghong 1
dc.subject	Yinghong 9
dc.title	HPLC-DAD-MS/MS analysis of purine alkaloids and tea polyphenols in young leaves of Yinghong 1, Yinghong 9 and Qimen cultivars
dc.type	Article

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Author Affiliations

The University of Hong Kong
Agricultural Science Academy of Guangdong Province
Sun Yat-Sen University