About: DISCRIMINATING AMONG TEAS BY SPME/GC TOFMS AND DART-MS ANALYSIS

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Tea belongs to the most consumed beverages in the world. The taste and flavour of tea infusions are characterized by special features (e.g. greenish aroma, mellow taste) associated with a wide range of chemical components such as volatiles, caffeine, organic acids and polyphenols.[1] The quality and quantity of flavour compounds vary depending on both, the environmental conditions under which tea was grown, and the tea processing method classified by the degree of fermentation.[1, 2] The aim of this study was to use the fingerprints of volatile and semi-volatile components for the discrimination within the set of 52 teas (Thea sinensis) according to the origin and fermentation degree. For this purpose, solid-phase microextraction followed by gas chromatography and time-of-flight mass spectrometry (SPME/GC-TOFMS), as well as direct analysis in real time coupled with mass spectrometric detector (DART-MS), were used. The multivariate data analysis techniques, including principal components analysis (PCA) and linear discriminant analysis (LDA), were used for data processing. The created database has potential to be successfully employed in the authentication of tea origin. Tea belongs to the most consumed beverages in the world. The taste and flavour of tea infusions are characterized by special features (e.g. greenish aroma, mellow taste) associated with a wide range of chemical components such as volatiles, caffeine, organic acids and polyphenols.[1] The quality and quantity of flavour compounds vary depending on both, the environmental conditions under which tea was grown, and the tea processing method classified by the degree of fermentation.[1, 2] The aim of this study was to use the fingerprints of volatile and semi-volatile components for the discrimination within the set of 52 teas (Thea sinensis) according to the origin and fermentation degree. For this purpose, solid-phase microextraction followed by gas chromatography and time-of-flight mass spectrometry (SPME/GC-TOFMS), as well as direct analysis in real time coupled with mass spectrometric detector (DART-MS), were used. The multivariate data analysis techniques, including principal components analysis (PCA) and linear discriminant analysis (LDA), were used for data processing. The created database has potential to be successfully employed in the authentication of tea origin. (en)
Title	DISCRIMINATING AMONG TEAS BY SPME/GC TOFMS AND DART-MS ANALYSIS DISCRIMINATING AMONG TEAS BY SPME/GC TOFMS AND DART-MS ANALYSIS (en)
skos:prefLabel	DISCRIMINATING AMONG TEAS BY SPME/GC TOFMS AND DART-MS ANALYSIS DISCRIMINATING AMONG TEAS BY SPME/GC TOFMS AND DART-MS ANALYSIS (en)
skos:notation	RIV/60461373:22330/11:43892965!RIV12-MSM-22330___
http://linked.open...avai/predkladatel	Fakulta potravinářské a biochemické technologie
http://linked.open...avai/riv/aktivita	S Z
http://linked.open...avai/riv/aktivity	S, Z(MSM6046137305)
http://linked.open...vai/riv/dodaniDat	2012
http://linked.open...aciTvurceVysledku	Stejskalová, Eva Hradecký, Jaromír Čajka, Tomáš Přinosilová, Šárka Riddellová, Kateřina Hajšlová, Jana
http://linked.open.../riv/druhVysledku	D - Článek ve sborníku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Vysoká škola chemicko-technologická v Praze / Fakulta potravinářské a biochemické technologie
http://linked.open...dnocenehoVysledku	194810
http://linked.open...ai/riv/idVysledku	RIV/60461373:22330/11:43892965
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	DART-MS; SPME/GC-TOFMS; volatiles; Tea (en)
http://linked.open.../riv/klicoveSlovo	DART-MS SPME/GC-TOFMS Tea volatiles
http://linked.open...ontrolniKodProRIV	[9B17E12DB941]
http://linked.open...v/mistoKonaniAkce	Novara
http://linked.open...i/riv/mistoVydani	Novara
http://linked.open...i/riv/nazevZdroje	Proceeding of the 1st International Congress of Cocoa, Coffee and Tea
http://linked.open...in/vavai/riv/obor	GM
http://linked.open...ichTvurcuVysledku	6 (xsd:int)
http://linked.open...cetTvurcuVysledku	6 (xsd:int)
http://linked.open...UplatneniVysledku	2011
http://linked.open...iv/tvurceVysledku	Hajšlová, Jana Hradecký, Jaromír Přinosilová, Šárka Riddellová, Kateřina Stejskalová, Eva Čajka, Tomáš
http://linked.open...vavai/riv/typAkce	WRD - Světová
http://linked.open.../riv/zahajeniAkce	2011-09-13 (xsd:date)
http://linked.open...n/vavai/riv/zamer	Teoretické základy potravinářských a biochemických technologií
number of pages	5 (xsd:int)
http://purl.org/ne...btex#hasPublisher	Booksystem
https://schema.org/isbn	978-88-903360-0-3
http://localhost/t...ganizacniJednotka	22330
is http://linked.open...avai/riv/vysledek of	DISCRIMINATING AMONG TEAS BY SPME/GC TOFMS AND DART-MS ANALYSIS DISCRIMINATING AMONG TEAS BY SPME/GC TOFMS AND DART-MS ANALYSIS

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