The Therapeutic Benefits of Essential Oils

In book: Nutrition, Well-Being and Health
Source: InTech
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Available from: Abdelouaheb Djilani
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    • "Reports in the pertinent literature suggest that, many researchers all over the world are trying to explore the biological properties of around 3000 essential oils extracted from atleast 2000 plant species for antimicrobial, anti-inflammatory, anticancer, antioxidant and antimutagenic properties (Bakkali et al., 2008; Djilani and Dicko, 2012; Jayant Shankar and Sankunny Mohan, 2014). Plants that produce essential oil are distributed among 60 families. "
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    ABSTRACT: Plant essential oils are mixture of bioactive compounds that are useful to humankind as therapeutics and preservatives. Present report describes the determination of chemical composition of Anisomeles indica Kuntze leaf essential oil and exploration of its biological properties. Farnesyl acetone, nootkatone and jasmatone were the major components of 17 constituents identified in leaf essential oil of A. indica by GC–MS analysis. Essential oil was evaluated for its antioxidant, fungitoxic, anti-aflatoxigenic and cytotoxic properties. Essential oil exhibited strong antioxidant potential, with IC 50 value 9.86 L/mL. Fungitoxicity and anti-aflatoxigenic activity evaluated against Aspergillus flavus isolated from cereals and pulses, with minimum inhibitory concentration determined as 0.66 L/mL. Essential oil inhibited AFB 1 production completely at 0.6 L/mL in G 1 strain and partially in G 2 strains of A. flavus. Cytotoxicity was examined in four human cancer cell lines HEK-293, HepG2, A549, K562 by MTT assay. Essential oil inhibited proliferation of all four cell lines with significantly stronger cytotoxicity in HepG2 cells. Results confirmed the functional characters of A. inidica leaf essential oil with special merits possessing antioxidant, fungitoxic, aflatoxin suppression and cytotoxicity. The potential of A. indica leaf essential oil as a cheaper source of active ingredients for food and pharmaceutical industry was demonstrated.
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    ABSTRACT: Since synthetic antimicrobial agents and food additives can cause a number of adverse effects, there is a growing interest from consumers in ingredients from natural sources. Medicinal plants, such as Myrtus communis L. are a source of new compounds which can be used in both the food industry and for medical purposes, primarily as antimicrobial agents. In this review, the characteristics of myrtle essential oils and extracts are summarized, with particular attention to their chemical composition, biological activities and potential applications.
    Preview · Article · Oct 2013 · Microbiological Research
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    ABSTRACT: In vitro antimicrobial activity of methanolic extracts of six medicinal plants (black seed, camphor, cloocynth, clove, ginger and white cedar) were investigated against pathogenic bacteria and fungi at 3, 6 and 9% concentrations. Results obtained in this study showed that the six plant extracts exhibited varied extents of antimicrobial activity against the tested organisms even at low concentration. Among the tested plant extracts, ginger recorded the highest antifungal activity against Alternaria radicina, Fusarium oxysporum, F. solani, Macrophomina phaseolina, Nigrospora oryzae, Phoma destructiva, Rhizoctonia solani and Sclerotium rolfsii at 9% concentration. Whilst, the maximum antibacterial activity was achieved by black seed extract at 9% concentration against the Gram-negative bacteria (Escherichia coli and Pseudomonas aeruginosa) and Gram-positive bacteria (Staphylococcus aureus and Streptococcus pneumonia). Chemical compositions of ginger and black seed methanolic extracts were studied using GC-MS analysis and resulted in the identification of 19 and 17 compounds, respectively. Further studies are needed to investigate the antimicrobial potentiality of the active constituents singly or in mixtures with other antibiotics.
    Full-text · Article · Feb 2014 · Journal of Pure and Applied Microbiology
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