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J Oleo Sci

Title:		Volatile Compounds from the Different Organs of Houttuynia cordata and Litsea cubeba (L. citriodora)
Author(s):		Asakawa Y; Tomiyama K; Sakurai K; Kawakami Y; Yaguchi Y;
Address:		"Faculty of Pharmaceutical Sciences, Tokushima Bunri University. Corporate Research and Development Division, Takasago International Corporation"
Journal Title:		J Oleo Sci
Year:		2017
Volume:		20170712
Issue:		8
Page Number:		889 - 895
DOI:		10.5650/jos.ess17049
ISSN/ISBN:		1347-3352 (Electronic) 1345-8957 (Linking)
Abstract:		"The volatile compounds obtained from the different organs of Houttuynia cordata (Saururaceae) and Litsea cubeba (Lauraceae) were analyzed by Gas Chromatography/Mass Spectrometry (GC/MS), Headspace Solid Phase Micro Extraction-Gas Chromatography/Mass Spectrometry (HS-SPME-GC/MS), and GC/olfactometry (GC/O). The major component of all parts of H. cordata is assigned as 4-tridecanone. Each organ produces myrcene as the major monoterpenoid. The major monoterpene in the rhizomes and roots was beta-pinene instead of myrcene. 1-Decanal which was responsible for the unpleasant odor of this plant, was the predominant polyketide in both leaves and stems. The presence of 1-decanal was very poor in flowers, stem collected in summer, rhizomes, and roots. GC/MS analyses were very simple in case of the crude extracts of flowers. The content of sesquiterpenoids was extremely poor. (8Z)-Heptadecene, geranial, and neral were detected as the major components in Litsea cubeba. Odor-contributing components by GC/O analysis of the ether extract of the fresh flowers of L. cubeba were neral and geranial which played an important role in sweet-lemon fragrance of the flowers. The role of a high content of (8Z)-heptadecene was still unknown but it might play a significant role in the dispersion of the volatile monoterpene hydrocarbons and aldehydes. The flower volatiles of the Japanese L. cubeba were chemically quite different from those of the Chinese same species"
Keywords:		Acyclic Monoterpenes Alkanes/analysis Alkenes/analysis Bicyclic Monoterpenes Bridged Bicyclo Compounds/analysis Fatty Alcohols/analysis Gas Chromatography-Mass Spectrometry/methods Houttuynia/*chemistry Litsea/anatomy & histology/*chemistry Monoterpenes/a;
Notes:		"MedlineAsakawa, Yoshinori Tomiyama, Kenichi Sakurai, Kazutoshi Kawakami, Yukihiro Yaguchi, Yoshihiro eng Japan 2017/07/14 J Oleo Sci. 2017 Aug 1; 66(8):889-895. doi: 10.5650/jos.ess17049. Epub 2017 Jul 12"