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Molecules 2013, 18(8), 10024-10041; doi:10.3390/molecules180810024

Volatile Aroma Compounds in Various Brewed Green Teas

1
Department of Food Science and Nutrition, Pusan National University, 30 Jangjeon-Dong, Geumjeoung-Ku, Busan 609 735, Korea
2
Sensory Analysis Center, Kansas State University, Department of Human Nutrition, Manhattan, KS 66506-1407, USA
3
Sensient Flavors LLC, 5600 West Raymond St., Indianapolis, IN 46241, USA
*
Author to whom correspondence should be addressed.
Received: 18 July 2013 / Revised: 7 August 2013 / Accepted: 14 August 2013 / Published: 20 August 2013
(This article belongs to the Special Issue Flavors and Fragrances)
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Abstract

This study identifies and semi-quantifies aroma volatiles in brewed green tea samples. The objectives of this study were to identify using a gas chromatograph-mass spectrometer (GC-MS) paired with a headspace solid-phase micro-extraction (HS-SPME) the common volatile compounds that may be responsible for aroma/flavor of the brewed liquor of a range of green tea samples from various countries as consumed and to determine if green teas from the same region have similarities in volatile composition when green tea samples are prepared for consumption. Twenty-four green tea samples from eight different countries were brewed as recommended for consumer brewing. The aroma volatiles were extracted by HS-SPME, separated on a gas chromatograph and identified using a mass spectrometer. Thirty-eight compounds were identified and the concentrations were semi-quantified. The concentrations were lower than those reported by other researchers, probably because this research examined headspace volatiles from brewed tea rather than solvent extraction of leaves. No relationship to country of origin was found, which indicates that other factors have a greater influence than country of origin on aroma.
Keywords: green tea; aroma; volatiles; GC-MS; HS-SPME green tea; aroma; volatiles; GC-MS; HS-SPME
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Lee, J.; Chambers, D.H.; Chambers, E., IV; Adhikari, K.; Yoon, Y. Volatile Aroma Compounds in Various Brewed Green Teas. Molecules 2013, 18, 10024-10041.

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