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NMR Metabolomic Profiles for Quality Control of Korean Green Tea (Camellia sinensis) Classified by the Plucking Season
- Issue Date
- Dec-2017
- Publisher
- KOREAN MAGNETIC RESONANCE SOC
- Keywords
- NMR; Metabolomics; Green Tea; Metabolite Profiling; Quality Control; Plucking Season
- Citation
- JOURNAL OF THE KOREAN MAGNETIC RESONANCE SOCIETY, v.21, no.4, pp 119 - 125
- Pages
- 7
- Indexed
- ESCI
KCI
- Journal Title
- JOURNAL OF THE KOREAN MAGNETIC RESONANCE SOCIETY
- Volume
- 21
- Number
- 4
- Start Page
- 119
- End Page
- 125
- ISSN
- 1226-6531
- Abstract
- The plucking season of green tea leaves is one of the important parameters that decide their metabolic diversity, quality, and prices. The effects of plucking sghlwleasons on green tea metabolites were investigated through metabolite profiling by H-1 NMR spectroscopy. The orthogonal projection on latent structure-discriminant analysis (OPLS-DA) showed clear discriminations of green teas by three different grades depending on plucking seasons: Ujeon, Sejak, and Jungjak. These results suggested that the nine peak groups could be used for diagnostics for identification of high quality Ujeon grade of green tea.
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