Unravelling the key aroma compounds in the characteristic fragrance of Dendrobium officinale flowers for potential industrial application

doi:10.1016/j.phytochem.2022.113223

	Unravelling the key aroma compounds in the characteristic fragrance of Dendrobium officinale flowers for potential industrial application
	Yang, Yu-Han 1,2; Zhao, Jie 1,2; Du, Zhi-Zhi1,3
通讯作者	Du, Zhi-Zhi(duzhizhi@mail.kib.ac.cn)
	2022-08-01
发表期刊	PHYTOCHEMISTRY
ISSN	0031-9422
卷号	200 页码:8
摘要	Dendrobium officinale Kimura et Migo, one of the most important orchids because of its medicinal and edible value, has a typical Dendrobium Sw. flora scent, which has great application potential and commercial value to be characterized. The aroma-active compounds originating from D. officinale fresh flowers (DFF) were investigated using a sensomics approach. A combined solid phase microextraction and solvent-assisted flavor evaporation method were used to accurately capture the overall aromatic profile. Exactly 34 odorants were detected and identified by aroma extract dilution analysis (AEDA) coupled with gas chromatography/olfactometry-mass spectrometry (GC/O-MS) in DFF, of which nine odorants had a flavor dilution (FD) factor >= 27. All 34 odorants were further quantified. The odor activity values (OAVs) were calculated with the highest value of 7444, in which 18 compounds were confirmed to be key odorants, including 1-octen-3-ol, hexanal, nonanal, phenyl-acetaldehyde, linalool, 4-oxoisophorone, theaspirane, methyl salicylate, etc. Among the studies above, 42 out of 78 volatiles and 14 out of 34 odorants were identified in DFF for the first time. Then, the aroma profile of the DFF was simulated successfully by aroma recombination experiments based on the quantitation results, and the omission test suggested that alcohols are the decisive type of compounds in the DFF key odorants. In addition, a progressive addition test showed that the aroma recombinate prepared with 18 reference key odorants was able to reconstruct the characteristic aroma of DFF. In comparison, the recombinate constituted by mixing all 34 reference odorants in the same concentrations as determined in the DDF sample could mimic the flower scent and closely match the sensory attributes of the original D. officinale fresh flower.
关键词	Dendrobium officinale Orchidaceae Aroma-active compounds Solvent-assisted flavor evaporation Progressive addition test Aroma profile reconstruction
DOI	10.1016/j.phytochem.2022.113223
收录类别	SCI ; SCI
语种	英语
WOS记录号	WOS:000805433900005
引用统计
文献类型	期刊论文
条目标识符	http://ir.kib.ac.cn/handle/151853/73837
专题	中国西南野生生物种质资源库
通讯作者	Du, Zhi-Zhi
作者单位	1.Chinese Acad Sci, Kunming Inst Bot, Dept Econ Plants & Biotechnol, Yunnan Key Lab Wild Plant Resources, Kunming 650201, Yunnan, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Kunming Inst Bot, Bioinnovat Ctr DR PLANT, Kunming 650201, Yunnan, Peoples R China
推荐引用方式 GB/T 7714	Yang, Yu-Han,Zhao, Jie,Du, Zhi-Zhi. Unravelling the key aroma compounds in the characteristic fragrance of Dendrobium officinale flowers for potential industrial application[J]. PHYTOCHEMISTRY,2022,200:8.
APA	Yang, Yu-Han,Zhao, Jie,&Du, Zhi-Zhi.(2022).Unravelling the key aroma compounds in the characteristic fragrance of Dendrobium officinale flowers for potential industrial application.PHYTOCHEMISTRY,200,8.
MLA	Yang, Yu-Han,et al."Unravelling the key aroma compounds in the characteristic fragrance of Dendrobium officinale flowers for potential industrial application".PHYTOCHEMISTRY 200(2022):8.

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