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Molecules

Title:		Characterization of the Key Aroma Compounds in Proso Millet Wine Using Headspace Solid-Phase Microextraction and Gas Chromatography-Mass Spectrometry
Author(s):		Liu J; Zhao W; Li S; Zhang A; Zhang Y; Liu S;
Address:		"Institute Millet Crops of Heibei Academy of Agriculture and Forestry, Shijiazhuang 050035, China. liujingke79@163.com. National Millet Improvement Center of China, Shijiazhuang 050035, China. liujingke79@163.com. Minor Cereal Crops Research Laboratory of Hebei Province, Shijiazhuang 050035, China. liujingke79@163.com. Institute Millet Crops of Heibei Academy of Agriculture and Forestry, Shijiazhuang 050035, China. zhaoweipg@163.com. National Millet Improvement Center of China, Shijiazhuang 050035, China. zhaoweipg@163.com. Minor Cereal Crops Research Laboratory of Hebei Province, Shijiazhuang 050035, China. zhaoweipg@163.com. Institute Millet Crops of Heibei Academy of Agriculture and Forestry, Shijiazhuang 050035, China. lishaohui007@163.com. National Millet Improvement Center of China, Shijiazhuang 050035, China. lishaohui007@163.com. Minor Cereal Crops Research Laboratory of Hebei Province, Shijiazhuang 050035, China. lishaohui007@163.com. Institute Millet Crops of Heibei Academy of Agriculture and Forestry, Shijiazhuang 050035, China. zyz56@163.com. National Millet Improvement Center of China, Shijiazhuang 050035, China. zyz56@163.com. Minor Cereal Crops Research Laboratory of Hebei Province, Shijiazhuang 050035, China. zyz56@163.com. Institute Millet Crops of Heibei Academy of Agriculture and Forestry, Shijiazhuang 050035, China. lsyan@163.com. National Millet Improvement Center of China, Shijiazhuang 050035, China. lsyan@163.com. Minor Cereal Crops Research Laboratory of Hebei Province, Shijiazhuang 050035, China. lsyan@163.com. Shijiazhuang Livestock Products Quality Inspection & Supervision Center, Shijiazhuang 050041, China. lsyan@163.com"
Journal Title:		Molecules
Year:		2018
Volume:		20180220
Issue:		2
Page Number:		-
DOI:		10.3390/molecules23020462
ISSN/ISBN:		1420-3049 (Electronic) 1420-3049 (Linking)
Abstract:		"The volatile compounds in proso millet wine were extracted by headspace solid-phase microextraction (85 mum polyacrylate (PA), 100 mum polydimethylsiloxane (PDMS), 75 mum Carboxen (CAR)/PDMS, and 50/30 mum divinylbenzene (DVB)/CAR/PDMS fibers), and analyzed using gas chromatography-mass spectrometry; the odor characteristics and intensities were analyzed by the odor activity value (OAV). Different sample preparation factors were used to optimize this method: sample amount, extraction time, extraction temperature, and content of NaCl. A total of 64 volatile compounds were identified from the wine sample, including 14 esters, seven alcohols, five aldehydes, five ketones, 12 benzene derivatives, 12 hydrocarbons, two terpenes, three phenols, two acids, and two heterocycles. Ethyl benzeneacetate, phenylethyl alcohol, and benzaldehyde were the main volatile compounds found in the samples. According to their OAVs, 14 volatile compounds were determined to be odor-active compounds (OAV > 1), and benzaldehyde, benzeneacetaldehyde, 1-methyl-naphthalene, 2-methyl-naphthalene, and biphenyl were the prominent odor-active compounds (OAV > 50), having a high OAV. Principal component analysis (PCA) showed the difference of distribution of the 64 volatile compounds and 14 odor-active compounds with four solid-phase microextraction (SPME) fibers"
Keywords:		Esters/chemistry/isolation & purification Gas Chromatography-Mass Spectrometry Odorants/*analysis Panicum/*chemistry Phenols/*chemistry/isolation & purification Phenylethyl Alcohol/chemistry/isolation & purification Volatile Organic Compounds/*chemistry/i;
Notes:		"MedlineLiu, Jingke Zhao, Wei Li, Shaohui Zhang, Aixia Zhang, Yuzong Liu, Songyan eng Switzerland 2018/02/21 Molecules. 2018 Feb 20; 23(2):462. doi: 10.3390/molecules23020462"