EGCG-O-甲基转移酶（EOMT）催化EGCG形成的EGCG甲基化衍生物分析

doi:10.13305/j.cnki.jts.2012.02.003

Abstract

Abstract: The fragmentation pathways of EGCG3′′Me, EGCG4′′Me and EGCG3′Me were studied using LC-MS under positive ionization mode, and the EGCG methylated derivatives produced from EGCG catalyzed by EGCG-O-Methyltransferase were analyzed. Results showed that more than ten kinds of EGCG methylated derivatives were identified, including EGCG3′′Me, EGCG4′′Me, EGCG3′Me, EGCG5′Me, EGCG3′′,4′′-diMe, EGCG3′′,5′′-diMe, EGCG3′,5′-diMe, EGCG3′,5′′-diMe, EGCG3′,3′′,5′′-triMe, EGCG5′,3′′,5′′-triMe.

Key words: EGCG methylated derivatives, mass fragmentation, EGCG-O-methyltransferase

CLC Number:

TS272
Q555

Lü Hai-peng, FEI Dong-mei, ZHANG Yue, LIN Zhi, TAN Jun-feng, GUO Li. Analysis on the EGCG Methylated Derivatives Produced from EGCG Catalyzed by EGCG-O-Methyltransferase[J]. Journal of Tea Science, 2012, 32(2): 100-106.

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Analysis on the EGCG Methylated Derivatives Produced from EGCG Catalyzed by EGCG-O-Methyltransferase

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