Quality prediction of Japanese green tea using pyrolyzer coupled GC/MS based metabolic fingerprinting

Journal of Agricultural and Food Chemistry
Wipawee PongsuwanEiichiro Fukusaki

Abstract

A couple between pyrolyzer and gas chromatography/mass spectrometry (GC/MS) has allowed a fast, simple, and low-cost approach to evaluate a quality of Japanese green tea without any sample preparation or derivatization techniques. Using our method, errors from sample preparation could be avoided since raw samples were directly extracted through the extreme heat of the pyrolyzer. In addition, undesired reactions from expensive derivatizing agents, which are commonly needed to treat the samples before analyzing with GC/MS, could be omitted. In order to illustrate the efficiency of this technique, a set of green tea samples from the Tea contest in 2005 in the Kansai area were used. Projection to latent structure by means of partial least squares (PLS) along with orthogonal signal correction (OSC) was selected to explain the relation between green tea's metabolite profiling and its quality. The quality of the model was validated by testing and comparing the predictive ability to the respective model.

Citations

Apr 5, 2011·Journal of Agricultural and Food Chemistry·Akiko OhnoKiyoshi Fukuhara
Feb 28, 2013·Journal of Agricultural and Food Chemistry·Li ZhangFuwei Xie
Jul 13, 2011·Analytical Sciences : the International Journal of the Japan Society for Analytical Chemistry·Nengsheng YeXuexin Gu
Jan 21, 2009·Annual Review of Plant Biology·Kazuki Saito, Fumio Matsuda
Feb 7, 2016·Analytica Chimica Acta·Luis Cuadros-RodríguezAntonio González-Casado
Feb 2, 2013·Journal of Bioscience and Bioengineering·Sastia P PutriEiichiro Fukusaki
Nov 22, 2011·Journal of Bioscience and Bioengineering·Jae Won LeeTakeshi Bamba
Dec 12, 2012·Journal of Zhejiang University. Science. B·Jie LinXiao-chang Wang
Jan 29, 2013·The Korean journal of gastroenterology = Taehan Sohwagi Hakhoe chi·Choong Hwan LeeSun Young Lee
Feb 7, 2014·Critical Reviews in Food Science and Nutrition·Karl FraserSusanne Rasmussen
Jun 14, 2017·Biomolecules & Therapeutics·Kyung-Min LeeHyung-Kyoon Choi
Jan 1, 2014·Mass Spectrometry·Eiichiro Fukusaki

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