The influence of organ, season and drying method on chemical composition and antioxidant and antimicrobial activities of Juniperus phoenicea L. essential oils
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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Ennajar et al. found highest and lowest ABTS-scavenging activities in berries of Juniperus phoeniceae; oven-drying was best for leaf and berry oils, followed by sun-dried and shade-dried; variability seemed related to chemical composition.
“They found the highest and the lowest activities in the same part of the plant (berries). Considering the drying method used, oven-drying was the best method to obtain an important activity for leaf and berry oils, followed by sun-dried essential oils and shade-dried samples. Such variability seemed to be related to the chemical composition of the oils, wich having a similar profile, the main”
From Antioxidant and Anti-Inflammatory Activities of Essential Oils: A Short Review (2010) · cites this paper as [75]
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Antioxidant and Anti-Inflammatory Activities of Essential Oils: A Short Review
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- Authors
- Ennajar, M., Bouajila, J., Lebrihi, A., Mathieu, F., Savagnac, A., Abderraba, M., Raies, A., & Romdhane, M.
- Affiliations
- École Nationale d'Ingénieurs de Gabès (TN)
- Centre National de la Recherche Scientifique (FR)
- Université Toulouse III - Paul Sabatier (FR)
- Tunis University (TN)
- Corresponding author
- Bouajila, Jalloul
- Venue
- Journal of the Science of Food and Agriculture
- Publisher
- Wiley
- Published
- 2009-12
- Volume
- 90
- Issue
- 3
- Pages
- 462-470
- ISSN
- 0022-5142 (ISSN-L)
- 1097-0010
- OpenAlex
- W2085411617
- Cited by
- 63
- References
- 23
- Citations by year
- 2026: 2 · 2025: 3 · 2024: 2 · 2023: 2 · 2022: 6 · 2021: 4 · 2020: 1 · 2019: 1 · 2018: 5 · 2017: 4 · 2016: 1 · 2015: 1 · 2014: 7 · 2013: 11 · 2012: 4
- FWCI
- 6.86
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Journal of the Science of Food and Agriculture (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Life Sciences › Agricultural and Biological Sciences › Food Science › Essential Oils and Antimicrobial Activity
- Life Sciences › Agricultural and Biological Sciences › Plant Science › Insect Pest Control Strategies
- Life Sciences › Agricultural and Biological Sciences › Plant Science › Plant chemical constituents analysis
- Keywords
- Juniperus phoenicea, essential oils, chemical composition, drying methods, seasonal variation, monoterpenes, sesquiterpenes, antioxidant activity, antimicrobial activity, α-pinene, δ-3-carene, Gram-positive bacteria, medicinal plants
- MeSH terms
- Anti-Bacterial Agents, Antifungal Agents, Antioxidants, Bacteria, Desiccation, Fruit, Mucor, Oils, Volatile, Plant Extracts, Seasons, Plant Leaves, Juniperus
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