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Molecules

Title:		"Characterization of Volatile Compounds of Rosa roxburghii Tratt by Gas Chromatography-Olfactometry, Quantitative Measurements, Odor Activity Value, and Aroma Intensity"
Author(s):		Niu Y; Wang R; Xiao Z; Sun X; Wang P; Zhu J; Cao X;
Address:		"School of Perfume and Aroma Technology, Shanghai Institute of Technology, Shanghai 201418, China"
Journal Title:		Molecules
Year:		2021
Volume:		20211014
Issue:		20
Page Number:		-
DOI:		10.3390/molecules26206202
ISSN/ISBN:		1420-3049 (Electronic) 1420-3049 (Linking)
Abstract:		"Rosa roxburghii tratt (RRT), widely distributed in the southwest of China, is favored by consumers for its good taste and healthy functions. In this study, thirty-seven compounds of Rosa roxburghii Tratt (RRT) were identified and quantified by gas chromatography-olfactometry (G-O) and gas chromatography-mass spectrometry (GC-MS) analysis. Furthermore, ethyl 2-methylpropanoate, ethyl butanoate, ethyl 2-methylbutyrate, and ethyl hexanoate were present with much higher odor activity values (OAVs) than other compounds. The key notes were confirmed by omission tests. Possible interaction among key notes was investigated through odor intensity determination and sensory analysis. It showed fruity and woody notes had synergistic effects. Full factorial design was used to evaluate the notes contribution to the whole odor. One important finding is the major effect of order interactions, fruity note (X1) and woody note (X4) especially, emphasizing the existence of complex interactions occurring between odor notes. The interaction X1X4 was further investigated. The woody note has a positive effect when the fruity note is also in the mixture but tends to show a negative effect otherwise"
Keywords:		"China Drugs, Chinese Herbal/chemistry Gas Chromatography-Mass Spectrometry Humans Odorants/*analysis Olfactometry Rosa/*chemistry Solid Phase Microextraction Volatile Organic Compounds/*chemistry Gc-ms-o Rosa roxburghii tratt characteristic compounds key;"
Notes:		"MedlineNiu, Yunwei Wang, Ruolin Xiao, Zuobing Sun, Xiaoxin Wang, Pinpin Zhu, Jiancai Cao, Xueying eng Switzerland 2021/10/24 Molecules. 2021 Oct 14; 26(20):6202. doi: 10.3390/molecules26206202"