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Sci Rep

Title:		Identification and analysis of odor-active compounds from Choerospondias axillaris (Roxb.) Burtt et Hill with different moisture content levels and lacquer treatments
Author(s):		Wang Q; Shen J; Zeng B; Wang H;
Address:		"Key Laboratory of Bio-Based Material Science and Technology, Ministry of Education, Northeast Forestry University, 26 Hexing Road, Harbin, 150040, China. Key Laboratory of Bio-Based Material Science and Technology, Ministry of Education, Northeast Forestry University, 26 Hexing Road, Harbin, 150040, China. shenjunr@126.com"
Journal Title:		Sci Rep
Year:		2020
Volume:		20200909
Issue:		1
Page Number:		14856 -
DOI:		10.1038/s41598-020-71698-0
ISSN/ISBN:		2045-2322 (Electronic) 2045-2322 (Linking)
Abstract:		"The problem of indoor odors can greatly affect a room's occupants. To identify odorants and comprehensively evaluate emissions from wooden materials, emissions and odors from Choerospondias axillaris (Roxb.) Burtt et Hill with different moisture content percentages and lacquer treatments were investigated in this study. Thermal desorption-gas chromatography-mass spectroscopy/olfactometry was used to analyze the release characteristics. In total, 11 key odor-active compounds were identified as moisture content gradually decreased, concentrating between 15 and 33 min. Total volatile organic compounds, total very volatile organic compounds, and total odor intensity decreased as moisture content decreased. In addition, 35 odor-active compounds, including aromatics, alkenes, aldehydes, esters, and alcohols, were identified in the odor control list. Polyurethane (PU), ultraviolet (UV), and waterborne coatings had a good inhibitory effect on eight odor characteristics, but some scents arose after lacquer treatment. For equilibrium moisture content, the major characteristics of Choerospondias axillaris were fragrant (9.4) and mint-like (3.0) compared with the fragrant (8.2), fruity (7.8), and pleasant (5.8) characteristics of PU coating; the flowery (5.9), fragrant (5.0), glue-like (4.3), and pineapple-like (4.3) characteristics of UV coating; and the antiseptic solution (3.6), fragrant (2.9), cigarette-like (2.8), and fruity (2.5) characteristics of waterborne coating. Based on multicomponent evaluation, a Choerospondias axillaris board with waterborne coating was suggested for use indoors"
Keywords:		Anacardiaceae/*chemistry China Humans Lacquer Odorants/*analysis Olfactory Perception Volatile Organic Compounds/*analysis Wood/*chemistry;
Notes:		"MedlineWang, Qifan Shen, Jun Zeng, Bin Wang, Huiyu eng Research Support, Non-U.S. Gov't England 2020/09/11 Sci Rep. 2020 Sep 9; 10(1):14856. doi: 10.1038/s41598-020-71698-0"