Seasonal Variation in the Yield and the Chemical Composition of Essential Oils from Two Brazilian Native Arbustive Species

This study analysed the influence of seasonality on the production and composition of essential oils from Blepharocalyx salicifolius (Kunth.) O. Berg and Psidium myrsinites DC, which are very common and useful species of the Brazilian Savannah (Cerrado). Steam distillation technique was used to obta...

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Published inJournal of applied sciences (Asian Network for Scientific Information) Vol. 12; no. 8; pp. 753 - 760
Main Authors Castelo, A.V.M., Menezzi, C.H.S. Del, Resck, I.S.
Format Journal Article
LanguageEnglish
Published 01.04.2012
Subjects
Psidium
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Summary:This study analysed the influence of seasonality on the production and composition of essential oils from Blepharocalyx salicifolius (Kunth.) O. Berg and Psidium myrsinites DC, which are very common and useful species of the Brazilian Savannah (Cerrado). Steam distillation technique was used to obtain these oils and to investigate their chemical composition, super(1)H and super(13)C nuclear magnetic resonance, gas chromatography, mass spectrometry and infrared techniques were employed. The average yields of essential oil were 0.18 and 0.26% from B. salicfolius and P. myrsinites, respectively; both species tended towards higher production in the dry season. Both oil mixtures were composed primarily of monoterpene and sesquiterpene compounds. The monoterpene linalool was found on the essential oil from Psidium species.
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ISSN:1812-5654
DOI:10.3923/jas.2012.753.760