Chemical Composition, Seasonal Variation, and Biosynthetic Considerations of Essential Oils from Baccharis microdonta and B. elaeagnoides (Asteraceae)

Chemical Composition, Seasonal Variation, and Biosynthetic Considerations of Essential Oils from Baccharis microdonta and B. elaeagnoides (Asteraceae)

Author Sayuri, Viviane A. Google Scholar
Romoff, Paulete Google Scholar
Favero, Oriana A. Google Scholar
Ferreira, Marcelo J. P. Google Scholar
Lago, Joao H. G. Autor UNIFESP Google Scholar
Buturi, Fatima O. S. Google Scholar
Institution Univ Presbiteriana Mackenzie
Universidade Federal de São Paulo (UNIFESP)
Inst Bot
Abstract The chemical composition and seasonal variation throughout one year of the essential oils from leaves of Baccharis microdonta and B. elaeagnoides, collected in Campos do Jordao, SP, were investigated. the composition of the latter species has been described for the first time. By GC (RI) and GC/MS analysis, 43 compounds were identified, and a predominance of oxygenated sesquiterpene derivatives was found in both species. the main components of the B. microdonta oils were elemol (31; 11.7-30.6%), spathulenol (34; 4.7-9.1%), beta-caryophyllene (19; 3.7-6.2%), and germacrene D (24; 2.9-12.2%), and those of the B. elaeagnoides oils were 34 (10.1-21.5%), viridiflorol (35; 3.6-18.4%), 24 (0.9-13.8%), and 19(3.5-9.4%). the identified compounds were grouped according to their respective C-skeletons, and the percentages of occurrence of the C-skeletons in the essential oils of leaves collected in the four seasons allowed identifying the preferential accumulation of different types of C-skeletons as well as the seasonal variation of the biosynthetic routes over the studied period.
Language English
Sponsor Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
MackPesquisa
Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
Date 2010-01-01
Published in Chemistry & Biodiversity. Weinheim: Wiley-v C H Verlag Gmbh, v. 7, n. 11, p. 2771-2782, 2010.
ISSN 1612-1872 (Sherpa/Romeo, impact factor)
Publisher Wiley-Blackwell
Extent 2771-2782
Origin http://dx.doi.org/10.1002/cbdv.201000083
Access rights Closed access
Type Article
Web of Science ID WOS:000284967200012
URI http://repositorio.unifesp.br/handle/11600/32071

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