The effect of pediocin JD, a bacteriocin produced by Pediococcus acidilactici JD1-23, on the proton motive force and proton permeability of resting whole cells of Listeria monocytogenes Scott A was determined. Control cells, treated with trypsin-inactivated bacteriocin at a pH of 5.3 to 6.1, maintained a pH gradient and a membrane potential of approximately 0.65 pH unit and 75 mV, respectively....

The production and secretion of class II bacteriocins share a number of features that allow the interchange of genetic determinants between certain members of this group of antimicrobial peptides. Lactococcus lactis IL1403 encodes translocatory functions able to recognize and mediate secretion of lactococcin A. The ability of this strain to also produce the pediococcal bacteriocin pediocin PA-1...

Genotoxicity assessment is carried out on freeze dried powder of cultured probiotics containing Lactobacillus rhamnosus LCR177, Bifidobacterium adolescentis BA286, and Pediococcus acidilactici PA318. Ames tests, in vitro mammalian chromosome aberration assay, and micronucleus tests in mouse peripheral blood are performed. For 5 strains of Salmonella Typhimurium, the Ames tests show no increased...

Pediocin PD-1, produced by Pediococcus damnosus NCFB 1832, is inhibitory to several food spoilage bacteria and food-borne pathogens. However, pediocin PD-1 is not active against other Pediococcus spp. and differs in this respect to other pediocins produced by Pediococcus acidilactici and Pediococcus pentosaceus. Production of pediocin PD-1 starts during early growth and reaches-a plateau at the...

Due to the increase by consumers of healthy products, exploration natural antimicrobial compounds has been promoted through use by-products lactic acid bacteria. Therefore, aim this research was obtain an powder (cell free) freeze-drying (FD) and spray-drying (SD) from microbial stabilisation (filtration or partial purification) a Pediococcus acidilactici fermentation broths. The activity these...

A new strategy was proposed to improve the utilization rate of corn straw by making non-ruminant feed products. The ball milled, and crushed subjected solid-state fermentation. After milling, particle size decreased significantly from 4.85 ± 0.07 cm 10–100 μm, content neutral detergent fiber acid 1.3% 3.5%, respectively, total soluble sugar increased 16.2 mg/g. At same time, treated milling as ...

Abstract Background Pineapple plant ( Ananas comosus ) is one of the largest productions in Asia and its increasing production has generated a huge amount pineapple wastes. stem made up high concentration starch which can potentially be converted into value-added products, including amino acids. Due to demand animal feed grade acids, especially for methionine lysine, utilisation cheap renewable...