Isolation of N-Ethyl-2-pyrrolidinone-Substituted Flavanols from White Tea Using Centrifugal Countercurrent Chromatography Off-Line ESI-MS Profiling and Semi-Preparative Liquid Chromatography

N-Ethyl-2-pyrrolidinone-substituted flavanols (EPSF) are marker compounds for long-term stored white teas. However, due to their low contents and diasteromeric configuration, EPSF compounds are challenging to isolate. In this study, two representative epimeric EPSF compounds, 5′′′R- and 5′′′S-epigal...

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Detalles Bibliográficos
Autores principales: Dai, Weidong, Ramos-Jerz, Maria, Xie, Dongchao, Peng, Jiakun, Winterhalter, Peter, Jerz, Gerold, Lin, Zhi
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8658928/
https://www.ncbi.nlm.nih.gov/pubmed/34885862
http://dx.doi.org/10.3390/molecules26237284

Internet

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8658928/
https://www.ncbi.nlm.nih.gov/pubmed/34885862
http://dx.doi.org/10.3390/molecules26237284

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