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Chemical Composition and Antioxidant Activities of the...

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Chemical Composition and Antioxidant Activities of the Essential Oils of Different Parts of Cupressus arizonica Greene.

The essential oils of different parts of Cupressus arizonica were examined for their potential radical scaveng- ing activity. Fresh leaves and fruits of C. arizonica were steam distilled and the oils were analyzed qualitatively and quantitatively by GC and GC/MS. Different methods of rapid TLC screening, DPPH assay, desoxyribose assay, assay for site-specific reaction and non-enzymatic lipid peroxidation were employed to evaluate possible antioxidant activity of the oils and their main components, as well as the positive controls. The main components of these essential oils were a-pinene, cymene, myrcene, limonene, sabinene hydrate, cedrane and germacrene D. In rapid TLC screening, the tested compounds mainly showed antioxidant activity. In DPPH assay the stronger antioxidant effects were shown by the fruit oil of C. arizonia. In deoxyribose degradation assay test, most of the tested compounds showed some antioxidant effects. In non-enzymatic lipid peroxidation test, most antioxidant activity was shown by the fruit oil.

Journal Title: Journal of essential oil research : JEOR.
Journal Volume/Issue: 2010 May-June, v. 22, no. 3
Main Author: Emami, S.A.
Other Authors: Fakhrjafary, M., Tafaghodi, M., Hassanzadeh, M.K.
Format: Article
Language: English
Subjects: Cupressus arizonica
medicinal plants
leaves
fruits (plant anatomy)
chemical constituents of plants
gas chromatography
mass spectrometry
essential oils
alpha-pinene
cymenes
myrcene
limonene
sabinene
germacrene
quantitative analysis
plant extracts
medicinal properties
oxidative stress
antioxidant activity
Iran
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