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J Oleo Sci

Title:		Characteristic odor components of essential oils from Eurya japonica
Author(s):		Motooka R; Usami A; Nakahashi H; Koutari S; Nakaya S; Shimizu R; Tsuji K; Marumoto S; Miyazawa M;
Address:		"Department of Applied Chemistry, Faculty of Science and Engineering, Kinki University (Kindai University)"
Journal Title:		J Oleo Sci
Year:		2015
Volume:		20150406
Issue:		5
Page Number:		577 - 584
DOI:		10.5650/jos.ess14225
ISSN/ISBN:		1347-3352 (Electronic) 1345-8957 (Linking)
Abstract:		"The chemical compositions of essential oils from the flower and aerial parts (i.e., leaf and branch) of Eurya japonica were determined and quantified using gas chromatography-mass spectrometry (GC-MS). A total of 87 and 50 compounds were detected in the oils from the flower and aerial parts, respectively. The main compounds of the flower oil were linalool (14.0%), (9Z)-tricosene (12.0%), and nonanal (7.4%). In the oil from the aerial parts, linalool (37.7%), alpha-terpineol (13.5%), and geraniol (9.6%) were detected. In the oils from the flower and aerial parts, 13 and 8 aroma-active compounds were identified by GC-olfactometry (GC-O) analysis, respectively. The key aroma-active compounds of the flower oil were heptanal [fatty, green, flavor dilution (FD) = 128, odor activity value (OAV) = 346], nonanal (sweet, citrus, FD = 128, OAV = 491), and eugenol (sweet, spicy, FD = 64, OAV = 62): in the oil from the aerial parts, the key aroma-active compounds were linalool (sweet, citrus, FD = 64, OAV = 95), (E)-beta-damascenone (sweet, FD = 256, OAV = 4000), and (E)-beta-ionone (floral, violet, FD = 128, OAV = 120). This study revealed that nonanal and eugenol impart the sweet, citrus, and spicy odor of the flower oil, while (E)-beta-damascenone and (E)-beta-ionone contribute the floral and sweet odor of the oil from the aerial parts"
Keywords:		Acyclic Monoterpenes Aldehydes/analysis/isolation & purification Alkenes/analysis/isolation & purification Cyclohexane Monoterpenes Cyclohexanes/analysis/isolation & purification Cyclohexenes/analysis/isolation & purification Eugenol/analysis/isolation &;
Notes:		"MedlineMotooka, Ryota Usami, Atsushi Nakahashi, Hiroshi Koutari, Satoshi Nakaya, Satoshi Shimizu, Ryoyu Tsuji, Kaoru Marumoto, Shinsuke Miyazawa, Mitsuo eng Japan 2015/04/07 J Oleo Sci. 2015; 64(5):577-84. doi: 10.5650/jos.ess14225. Epub 2015 Apr 6"