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Molecules

Title:		Characterization of the Aroma of an Instant White Tea Dried by Freeze Drying
Author(s):		Ni H; Jiang QX; Zhang T; Huang GL; Li LJ; Chen F;
Address:		"College of Food and Biological Engineering, Jimei University, Xiamen 361021, China. Key Laboratory of Food Microbiology and Enzyme Engineering Technology of Fujian Province, Xiamen 361021, China. Research Center of Food Biotechnology of Xiamen City, Xiamen 361021, China. Department of Food, Nutrition and Packaging Sciences, Clemson University, Clemson, SC 29634, USA"
Journal Title:		Molecules
Year:		2020
Volume:		20200810
Issue:		16
Page Number:		-
DOI:		10.3390/molecules25163628
ISSN/ISBN:		1420-3049 (Electronic) 1420-3049 (Linking)
Abstract:		"The aroma of an instant white tea (IWT) was extracted through simultaneous distillation-extraction (SDE) and analyzed by sensory evaluation, gas chromatography-mass spectrometry-olfactometry (GC-MS-O), aroma reconstruction, omission test and synergistic interaction analysis. Sensory evaluation showed the IWT was dominated with floral and sweet notes. The SDE extract had the aroma similar to the IWT. The main volatile components in the SDE extract were benzyl alcohol, linalool, hotrienol, geraniol, alpha-terpineol, coumarin, camphene, benzeneacetaldehyde, 2-hexanone, cis-jasmin lactone and phenylethyl alcohol. GC-MS-O and aroma reconstruction experiments showed 16 aroma-active compounds. Linalool, trans-beta-damascenone and camphene were the major contributors to floral, sweet and green notes based on flavor dilution analysis and omission test. Linalool and trans-beta-damascenone had synergistic effect to promote floral and sweet notes. Camphene and trans-beta-damascenone had synergistic effect to reduce green and sweet notes. The study helps to understand the aroma of IWT and antagonism interactions among aroma-active volatiles"
Keywords:		Adult Distillation Female Freeze Drying *Gas Chromatography-Mass Spectrometry Humans Male Odorants/*analysis Olfactometry Solid Phase Microextraction Taste Threshold Tea/*chemistry/metabolism Volatile Organic Compounds/*chemistry/isolation & purification;
Notes:		"MedlineNi, Hui Jiang, Qing-Xiang Zhang, Ting Huang, Gao-Ling Li, Li-Jun Chen, Feng eng No. 31871765/the National Natural Science Foundation of China/ 2017J01581/the Natural Science Foundation of Fujian Province of China/ Switzerland 2020/08/14 Molecules. 2020 Aug 10; 25(16):3628. doi: 10.3390/molecules25163628"