High-throughput technique for comprehensive analysis of Japanese green tea quality assessment using ultra-performance liquid chromatography with time-of-flight mass spectrometry (UPLC/TOF MS)

Wipawee Pongsuwan, Takeshi Bamba, Kazuo Harada, Tsutomu Yonetani, Akio Kobayashi, Eiichiro Fukusaki

研究成果: ジャーナルへの寄稿学術誌査読

106 被引用数 (Scopus)

抄録

Applications of metabolomics techniques along with chemometrics provide an understanding in the relationship between metabolome of green tea and its quality. A coupled of ultra-performance liquid chromatography with time-of-flight mass spectrometry (UPLC/TOF MS) allowed a high-throughput and comprehensive analysis with minimal sample preparation. Using this technique, a wide range of metabolites were investigated. Data analysis was rapid, considering that the fingerprinting technique was performed. A set of green tea samples from 2006 tea contest of the Kansai area was analyzed to prove usefulness of the developed technique. Green tea with different qualities were discriminated through principal component analysis (PCA). Consequently, projection to latent structure by means of partial least-squares (PLS) was performed to create a constructive quality-predictive model by means of metabolic fingerprinting. Beside epigallocatechin, other predominant catechins, including epigallocatechin gallate and epicatechin gallate, detected in green tea were found to be significant biomarkers to the high quality of Japanese green tea (Sencha).

本文言語英語
ページ(範囲)10705-10708
ページ数4
ジャーナルJournal of Agricultural and Food Chemistry
56
22
DOI
出版ステータス出版済み - 11月 26 2008
外部発表はい

!!!All Science Journal Classification (ASJC) codes

  • 農業および生物科学(全般)
  • 化学 (全般)

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