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The influence of organ, season and drying method on chemical composition and antioxidant and antimicrobial activities of Juniperus phoenicea L. essential oils.
J Sci Food Agric. 2010 Feb; 90(3):462-70.JS

Abstract

BACKGROUND

Juniperus phoenicea is an important medicinal plant. In the present study, essential oils (18 samples) from leaves and berries of Juniperus phoenicea L. (Cupressaceae), obtained by various drying methods and in different collection months, were analysed by gas chromatography-mass spectrometry and also evaluated for in vitro antimicrobial and antioxidant activities. Correlations were studied between antimicrobial activity and the chemical composition of essential oils.

RESULTS

Sixty-seven compounds were identified in essential oils, representing 97.7-100%. Essential oils were dominated by monoterpenes and sesquiterpenes, which presented 35.0-93.3% and 6.7-62.0%, respectively, depending of organ, season and drying method. Antimicrobial tests showed that essential oils strongly inhibited the growth of Gram-positive microorganisms and Mucor ramamnianus, but was inactive against Gram-negative strains. Antioxidant activity was tested using the ABTS radical-scavenging assay. Most samples showed good activity (the best IC(50) = 41.7 + or - 1.5 mg L(-1)).

CONCLUSIONS

It could be concluded that drying of leaves of J. phoenicea in the sun and berries in oven-drying was more suitable and was recommended for obtaining higher essential oil yield, but for a higher percentage of some special components such as alpha-pinene and delta-3-carene shade-drying was more suitable.

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Publisher Full Text (DOI)

Authors+Show Affiliations

Ennajar M
Laboratoire de Physicochimie des Matériaux, IPEST, BP51, La Marsa 2070, Tunisia.
Bouajila J
No affiliation info available
Lebrihi A
No affiliation info available
Mathieu F
No affiliation info available
Savagnac A
No affiliation info available
Abderraba M
No affiliation info available
Raies A
No affiliation info available
Romdhane M
No affiliation info available

MeSH

Anti-Bacterial AgentsAntifungal AgentsAntioxidantsBacteriaDesiccationFruitJuniperusMucorOils, VolatilePlant ExtractsPlant LeavesSeasons

Pub Type(s)

Journal Article

Language

eng

PubMed ID

20355069

Citation

Ennajar, Monia, et al. "The Influence of Organ, Season and Drying Method On Chemical Composition and Antioxidant and Antimicrobial Activities of Juniperus Phoenicea L. Essential Oils." Journal of the Science of Food and Agriculture, vol. 90, no. 3, 2010, pp. 462-70.
Ennajar M, Bouajila J, Lebrihi A, et al. The influence of organ, season and drying method on chemical composition and antioxidant and antimicrobial activities of Juniperus phoenicea L. essential oils. J Sci Food Agric. 2010;90(3):462-70.
Ennajar, M., Bouajila, J., Lebrihi, A., Mathieu, F., Savagnac, A., Abderraba, M., Raies, A., & Romdhane, M. (2010). The influence of organ, season and drying method on chemical composition and antioxidant and antimicrobial activities of Juniperus phoenicea L. essential oils. Journal of the Science of Food and Agriculture, 90(3), 462-70. https://doi.org/10.1002/jsfa.3840
Ennajar M, et al. The Influence of Organ, Season and Drying Method On Chemical Composition and Antioxidant and Antimicrobial Activities of Juniperus Phoenicea L. Essential Oils. J Sci Food Agric. 2010;90(3):462-70. PubMed PMID: 20355069.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - The influence of organ, season and drying method on chemical composition and antioxidant and antimicrobial activities of Juniperus phoenicea L. essential oils. AU - Ennajar,Monia, AU - Bouajila,Jalloul, AU - Lebrihi,Ahmed, AU - Mathieu,Florence, AU - Savagnac,Arlette, AU - Abderraba,Manef, AU - Raies,Aly, AU - Romdhane,Mehrez, PY - 2010/4/1/entrez PY - 2010/4/1/pubmed PY - 2010/9/10/medline SP - 462 EP - 70 JF - Journal of the science of food and agriculture JO - J Sci Food Agric VL - 90 IS - 3 N2 - BACKGROUND: Juniperus phoenicea is an important medicinal plant. In the present study, essential oils (18 samples) from leaves and berries of Juniperus phoenicea L. (Cupressaceae), obtained by various drying methods and in different collection months, were analysed by gas chromatography-mass spectrometry and also evaluated for in vitro antimicrobial and antioxidant activities. Correlations were studied between antimicrobial activity and the chemical composition of essential oils. RESULTS: Sixty-seven compounds were identified in essential oils, representing 97.7-100%. Essential oils were dominated by monoterpenes and sesquiterpenes, which presented 35.0-93.3% and 6.7-62.0%, respectively, depending of organ, season and drying method. Antimicrobial tests showed that essential oils strongly inhibited the growth of Gram-positive microorganisms and Mucor ramamnianus, but was inactive against Gram-negative strains. Antioxidant activity was tested using the ABTS radical-scavenging assay. Most samples showed good activity (the best IC(50) = 41.7 + or - 1.5 mg L(-1)). CONCLUSIONS: It could be concluded that drying of leaves of J. phoenicea in the sun and berries in oven-drying was more suitable and was recommended for obtaining higher essential oil yield, but for a higher percentage of some special components such as alpha-pinene and delta-3-carene shade-drying was more suitable. SN - 1097-0010 UR - https://www.unboundmedicine.com/medline/citation/20355069/The_influence_of_organ_season_and_drying_method_on_chemical_composition_and_antioxidant_and_antimicrobial_activities_of_Juniperus_phoenicea_L__essential_oils_ L2 - https://doi.org/10.1002/jsfa.3840 DB - PRIME DP - Unbound Medicine ER -