Comparative Study of Essential Oils Extracted from Egyptian Basil Leaves ( Ocimum basilicum L.) Using Hydro-Distillation and Solvent-Free Microwave Extraction
In: ISSN: 1420-3049 ; Molecules ; https://hal.inrae.fr/hal-02636744 ; Molecules, MDPI, 2016, 21 (1), pp.113. ⟨10.3390/molecules21010113⟩, 2016
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academicJournal
Zugriff:
International audience ; Solvent-free microwave extraction (SFME) and conventional hydro-distillation (HD) were used for the extraction of essential oils (EOs) from Egyptian sweet basil ( Ocimum basilicum L.) leaves. The two resulting EOs were compared with regards to their chemical composition, antioxidant, and antimicrobial activities. The EO analyzed by GC and GC-MS, presented 65 compounds constituting 99.3% and 99.0% of the total oils obtained by SFME and HD, respectively. The main components of both oils were linalool (43.5% SFME; 48.4% HD), followed by methyl chavicol (13.3% SFME; 14.3% HD) and 1,8-cineole (6.8% SFME; 7.3% HD). Their antioxidant activity were studied with the 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging method. The heating conditions effect was evaluated by the determination of the Total Polar Materials (TPM) content. The antimicrobial activity was investigated against five microorganisms: two Gram-positive bacteria, Staphylococcus aureus and Bacillus subtilis , two Gram-negative bacteria, Escherichia coli and Pseudomonas aeruginosa , and one yeast, Candida albicans . Both EOs showed high antimicrobial, but weak antioxidant, activities. The results indicated that the SFME method may be a better alternative for the extraction of EO from O. basilicum since it could be considered as providing a richer source of natural antioxidants, as well as strong antimicrobial agents for food preservation.
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Comparative Study of Essential Oils Extracted from Egyptian Basil Leaves ( Ocimum basilicum L.) Using Hydro-Distillation and Solvent-Free Microwave Extraction
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Autor/in / Beteiligte Person: | Chenni, Mohammed ; El Abed, Douniazad ; Rakotomanomana, Njara ; Fernandez, Xavier ; Chemat, Farid ; d'Oran, Université ; Sécurité et Qualité des Produits d'Origine Végétale (SQPOV) ; Avignon Université (AU)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) ; Université de Nice Sophia-Antipolis (UNSA) |
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Zeitschrift: | ISSN: 1420-3049 ; Molecules ; https://hal.inrae.fr/hal-02636744 ; Molecules, MDPI, 2016, 21 (1), pp.113. ⟨10.3390/molecules21010113⟩, 2016 |
Veröffentlichung: | HAL CCSD ; MDPI, 2016 |
Medientyp: | academicJournal |
DOI: | 10.3390/molecules21010113 |
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