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Food Chem

Title:		Black tea volatiles fingerprinting by comprehensive two-dimensional gas chromatography - Mass spectrometry combined with high concentration capacity sample preparation techniques: Toward a fully automated sensomic assessment
Author(s):		Magagna F; Cordero C; Cagliero C; Liberto E; Rubiolo P; Sgorbini B; Bicchi C;
Address:		"Dipartimento di Scienza e Tecnologia del Farmaco, Universita di Torino, Via Pietro Giuria 9, I-10125 Turin, Italy. Dipartimento di Scienza e Tecnologia del Farmaco, Universita di Torino, Via Pietro Giuria 9, I-10125 Turin, Italy. Electronic address: chiara.cordero@unito.it"
Journal Title:		Food Chem
Year:		2017
Volume:		20170107
Issue:
Page Number:		276 - 287
DOI:		10.1016/j.foodchem.2017.01.003
ISSN/ISBN:		1873-7072 (Electronic) 0308-8146 (Linking)
Abstract:		"Tea prepared by infusion of dried leaves of Camellia sinensis (L.) Kuntze, is the second world's most popular beverage, after water. Its consumption is associated with its chemical composition: it influences its sensory and nutritional quality addressing consumer preferences, and potential health benefits. This study aims to obtain an informative chemical signature of the volatile fraction of black tea samples from Ceylon by applying the principles of sensomics. In particular, several high concentration capacity (HCC) sample preparation techniques were tested in combination with GCxGC-MS to investigate chemical signatures of black tea volatiles. This platform, using headspace solid phase microextraction (HS-SPME) with multicomponent fiber as sampling technique, recovers 95% of the key-odorants in a fully automated work-flow. A group 123 components, including key-odorants, technological and botanical tracers, were mapped. The resulting 2D fingerprints were interpreted by pattern recognition tools (i.e. template matching fingerprinting and scripting) providing highly informative chemical signatures for quality assessment"
Keywords:		Camellia sinensis/*chemistry Gas Chromatography-Mass Spectrometry/*methods Tea/*chemistry Volatile Organic Compounds/*analysis Advanced fingerprinting Black tea volatiles Comprehensive two-dimensional gas chromatography Headspace solid phase microextracti;
Notes:		"MedlineMagagna, Federico Cordero, Chiara Cagliero, Cecilia Liberto, Erica Rubiolo, Patrizia Sgorbini, Barbara Bicchi, Carlo eng England 2017/02/15 Food Chem. 2017 Jun 15; 225:276-287. doi: 10.1016/j.foodchem.2017.01.003. Epub 2017 Jan 7"