Characterization of the Portuguese-grown Cistus ladanifer essential oil

The chemical composition of the cistus oil from Portuguese-grown rockrose (Cistus ladanifer) was determined using GC and GC/MS. A comparison was also made in terms of the geographical source and use of either dry or fresh plant material. The cistus oil herein obtained was richer in amber-like compou...

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Bibliographic Details
Published in:The Journal of essential oil research 2005-03, Vol.17 (2), p.160-165
Main Authors: Gomes, P.B, Mata, V.G, Rodrigues, A.E
Format: Article
Language:English
Subjects:
chemical composition
Cistaceae
Cistus ladanifer
diterpenoids
essential oil composition
essential oil crops
essential oils
flowering
indigenous species
labdanum
odor compounds
ornamental plants
plant extracts
rockrose
sesquiterpenoids
viridiflorol
volatile organic compounds
wild plants
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Summary:The chemical composition of the cistus oil from Portuguese-grown rockrose (Cistus ladanifer) was determined using GC and GC/MS. A comparison was also made in terms of the geographical source and use of either dry or fresh plant material. The cistus oil herein obtained was richer in amber-like compounds and had a low content of monoterpenes when compared to the usual values found in the literature. Moreover, it presented a relatively high content of ambrox (amber odor), which usually is only reported in labdanum oil. The major constituents were three sesquiterpene alcohols: viridiflorol (13.6-17.4%), globulol (3.1-5.0%) and an unknown sesquiterpene alcohol (2.7-6.0%), as well as the diterpene alcohol 15-nor-labdan-8-ol (1.7-5.2%). Three samples of commercially available cistus oil were also analyzed and compared.
ISSN:1041-2905
2163-8152
DOI:10.1080/10412905.2005.9698864