Physicochemical characterization and antimicrobial activity of food-grade emulsions and nanoemulsions incorporating essential oils

Determination of the efficacy of ultrasound combined with essential oils on the decontamination of Salmonella inoculated lettuce leaves

“…Hence, this pH acidification entails better action of the antimicrobial substances of the essential oil, especially when the critical concentration of the essential oils is achieved at high levels of Salmonella inactivation. The size of the droplets of essential oil generated during the sonication process depends on the ultrasound parameters (amplitude, frequency and processing time) (Salvia-Trujillo, Rojas-Graü, Soliva-Fortuny, & Martín-Belloso, 2015) and may have an effect on the antimicrobial properties of the oil. Some authors have reported that a smaller particle size has a positive influence on the oil's biological properties (Speranza, Badan Ribeiro, Lopes Cunha, Alves Macedo, & Alves Macedo, 2015, McClements & Xiao, 2012, Teixeira et al, 2007.…”

Effect of novel bioactive edible coatings based on jujube gum and nettle oil-loaded nanoemulsions on the shelf-life of Beluga sturgeon fillets

“…Caffeic acid derivatives, especially, chlorogenic and 2-O-caffeoylmalic acid (71.5-76.5%) are the main phenolics in U. dioica leaves [41]. These phenolic derivatives at high concentrations medium can breakdown the microbial cells via their interaction with proteins present in the cytoplasmic membrane and leakage of ions and other cell content [4]. Use of NEO and NEs loaded with this phenolic rich-ingredient had a strong antibacterial activity on some pathogens especially Gram-positive bacteria [40].…”

“…However, the use of pure EOs for industrial applications has been limited due to their low water-solubility, high volatility, strong odor, and inadequate capability to interact directly with microorganisms [3,4]. Encapsulation of EOs in ideal colloidal delivery systems not only can significantly overcome the dosage limitations related to their low solubility in water, but also can enhance the physical stability and bioavailability of active ingredients to protect them against because of the high post-mortem pH, the presence of high contents of non-protein nitrogen, unsaturated fatty acids and autolytic enzymes [11].…”

Effect of Microemulsions of Essential Oils on Human Erythrocyte and Pathogens Bacteria

“…Los AE y sus extractos, continúan en uso por la medicina popular, aunque actualmente la industria farmacéutica y cosmética, han aumentado el interés por estos, debido al relativo estatus de seguridad y a la amplia aceptación por la población [2] , debido a las diversas propiedades antimicrobianas y antioxidantes [3,4,5] . Sin embargo, las limitantes en el uso y aplicación de los AE se atribuyen principalmente a la naturaleza fotosensible, volátil e hidrofóbica, lo que a su vez ha estimulado la búsqueda de nuevos sistemas de conservación [6] .…”