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Molecules

Title:		"The Variation of Oncidium Rosy Sunset Flower Volatiles with Daily Rhythm, Flowering Period, and Flower Parts"
Author(s):		Chiu YT; Chen HC; Chang C;
Address:		"Department of Horticulture, National Chung Hsing University, 145 Xingda Rd., South Dist., Taichung 402, Taiwan. o_oten@yahoo.com.tw. Department of Cosmeceutics, China Medical University, 91 Hsueh-Shih Rd., Taichung 404, Taiwan. d91628004@ntu.edu.tw. Department of Horticulture, National Chung Hsing University, 145 Xingda Rd., South Dist., Taichung 402, Taiwan. chenchang@dragon.nchu.edu.tw"
Journal Title:		Molecules
Year:		2017
Volume:		20170904
Issue:		9
Page Number:		-
DOI:		10.3390/molecules22091468
ISSN/ISBN:		1420-3049 (Electronic) 1420-3049 (Linking)
Abstract:		"Oncidium is an important ornamental crop worldwide, and in recent years, the characteristics of the flower aroma have become a concern for breeders. This study used headspace solid-phase microextraction (HS-SPME) and gas chromatography/mass spectrometry (GC-MS) analysis of the volatile compounds to study the aroma characteristics of Onc. Rosy Sunset. A total of 45 compounds were identified, with the major compound being linalool. Onc. Rosy Sunset had the highest odor concentration from 10:00 to 12:00 and lowest from 20:00 to 24:00. The inflorescence emitted the highest quantities of volatile compounds during stages 3-6, which then decreased with the aging of the flowers. In Onc. Rosy Sunset, the sepals and petals were the major parts for the floral fragrance emission, in which linalool content was the highest, whereas the lip and column had a different composition of major volatile compounds, of which benzaldehyde, beta-myrcene, and beta-caryophyllene dominated"
Keywords:		"Acyclic Monoterpenes Benzaldehydes/chemistry Circadian Rhythm Flowers/*chemistry/metabolism Humans Monoterpenes/chemistry Odorants/*analysis Orchidaceae/*chemistry/metabolism Plant Components, Aerial/chemistry Polycyclic Sesquiterpenes Rosa/*chemistry/met;"
Notes:		"MedlineChiu, Yi-Tien Chen, Hsin-Chun Chang, Chen eng Switzerland 2017/09/05 Molecules. 2017 Sep 4; 22(9):1468. doi: 10.3390/molecules22091468"