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Type: Artigo de periódico
Title: Linalool from Lippia alba: Study of the reproducibility of the essential oil profile and the enantiomeric purity
Author: Siani, AC
Tappin, MRR
Ramos, MFS
Mazzei, JL
Conceicao, M
Ramos, KV
Neto, FRD
Frighetto, N
Abstract: A new chemotype of the aromatic Verbenaceae species Lippia alba Mill. N. E. Br. from southeastern Brazil has recently been shown to have a high content of linalool in the leaf essential oil, Vegetative propagation of this chemotype was conducted at six different locations in Brazil, and the variation of the content and the optical purity of linalool in the oils were verified. Yields (0.6-0.9%, hydrodistillation), chemical composition, linalool content, and optical purity of the oils from all the plants were compared, using GC-FID, GC-MS, chiral chromatography, and retention index calculation. No plant exceeded the matrix in linalool content (46.5 to 90.7%), and the chemical profile of the oils was the same for all the samples. Purification of linalool to a content close to 100% was effected by vacuum distillation of the crude oil. Chiral analysis showed exclusively the presence of S-linalool in all the crude oils and in the distilled samples.
Subject: Lippia alba
essential oil
chiral gas chromatography
Country: EUA
Editor: Amer Chemical Soc
Rights: fechado
Identifier DOI: 10.1021/jf011592n
Date Issue: 2002
Appears in Collections:Unicamp - Artigos e Outros Documentos

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