Listeria monocytogenes inhibition methods

Aspergillus niger, S. cerevisiae, Mycoderma sp., Lactobacillus acidophilus and B. cereus, as estimated by the paper disc agar diffusion method (Meena and Sethi, 1994). The oil also inhibits the growth of Fusarium verticilloides (Veluti et al., 2004). Clove oil (1% v/w) inhibits Listeria monocytogenes in chicken frankfurters (Mytle et al., 2006). It has excellent antimicrobial properties and is used in food preservation (Smith Palmer etal., 1998, 2001). 

Antimicrobial Edible films were prepared from natural fiber of pectin and other food hydrocolloids for food packaging or wrapping by extrusion followed by compression or blown film method. Microscopic analysis revealed a well mixed integrated structure of extruded pellets and an even distribution of the synthetic hydrocolloid in the biopolymers. The resultant composite films possess the mechanical properties that are comparable to films cast from most natural hydrocolloids that consumed as foods or components in processed foods. The inclusion of polyethylene oxide) alters the textures of the resultant composite films and therefore, demonstrating a new technique for the modification of film properties. The composite films were produced in mild processing conditions, thus, the films are able to protect the bioactivity of the incorporated nisin, as shown by the inhibition of Listeria monocytogenes bacterial growth by a liquid incubation method. 

Sauhusse, M., MUlet, L., Delbes, C., Gallon, C., Montel, M. C. (2007). Application of single strand conformation polymorphism - PCR method for distinguishing cheese bacterial communities that inhibit Listeria monocytogenes. International Journal of Food Microbiology, 116, 126-135. 

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