Microbial spoilage is the most common cause of food deterioration. Thus, one of the major concerns of the food industry is the control of spoilage and pathogenic organisms. Therefore, a broad range of chemicals that inhibit microbial growth are added to food during manufacture to extend shelf-life and ensure food safety and quality. However, although the effectiveness of traditional preservatives is recognized, their safety has been questioned (Türkoglu 2007).
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Genotoxicity and antigenotoxicity of some essential oils evaluated by wing spot test of drosophila melanogaster
Essential oils extracted from the three medicinal plants; Helichrysum italicum, Ledum groenlandicum and Ravensara aromatica, together with their mixture were tested for their genotoxic and antigenotoxic activities against urethane, a well-known promutagen.We have adopted the somatic mutations and recombination test (SMART) in the wings of Drosophila melanogaster. Three days old larvae, trans-heterozygous for two genetic markers mwh and flr, were treated by essential oil and/or urethane. A negative control corresponding to solvent was also used. Télécharger l'étude complète
Antimicrobial activities of commercial essential oils and their components against food-borne pathogens and food spoilage bacteria
Pathogenic and food spoilage bacteria have been considered as the primary causes of food-borne diseases and food quality deterioration in both developed and developing countries. In order to assure the food safety and to extend the shelf life of food products, additions of chemical preservative agents into food products or decontamination treatments via physical, chemical or biological process or their combinations have been widely applied in food industries (Brul and Coote 1999; Gould 2000). However, critical concerns have been raised due to limitations of treatment processes and since survival of environment-adapted bacteria after treatment processes may lead to high resistance of bacteria such as pathogenic Escherichia coli O157:H7, Listeria monocytogenes, and some Salmonella serovars (Whitney et al. 2007; Hugas and Tsigarida 2008; Rajkovic et al. 2009). Télécharger l'étude complète
d’expertise scientifique en Aromathérapie
Huiles Essentielles chémotypées
Biologiques. Pures. Intégrales.
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