Probiotics could help combat infections and reduce antibiotic use. As use of live bacteria is limited in some cases by safety or regulatory concerns, the potential inactivated worth investigating. We evaluated heat-inactivated Lactobacillus gasseri LA806 to counteract Staphylococcus aureus Escherichia coli infection cycles an vitro model bovine mastitis. assessed ability impair pathogen colonis...

The presence of microorganisms, specifically the Escherichia coli, in drinking water is global concern. This mainly due to health implications these pathogens. Several conventional methods have been developed for their removal; however, this pathogen still found most water. In continuous quest a more effective removal approach, photocatalysis has considered as an alternative method elimination ...

Streptococcus uberis UCN60 was resistant to spiramycin (MIC = 8 microg/ml) but susceptible to erythromycin (MIC = 0.06 microg/ml), azithromycin (MIC = 0.12 microg/ml), josamycin (MIC = 0.25 microg/ml), and tylosin (MIC = 0.5 microg/ml). A 2.5-kb HindIII fragment was cloned from S. uberis UCN60 DNA on plasmid pUC18 and introduced into Escherichia coli AG100A, where it conferred resistance to spi...

To evaluate the behavior of relevant microbial populations during stretched cheese production, quantitative microbiological analysis was performed critical steps preparation. The obtained data distributions proved statistically significant increases in all indicators, on average by 4.55 ± 0.64 log CFU/g presumptive lactococci counts, 4.06 0.61 lactobacilli, 1.53 0.57 coliforms, 2.42 0.67 Escher...

Raman spectroscopy (RS) is one of the promising approaches for structural and functional studies various biological objects, including bacterial microorganisms. Both traditional biochemical tests genetic methods which require expensive reagents, consumables are time-consuming used analysis. Spectroscopic positioned as noninvasive, highly sensitive, requiring minimal sample preparation. In this ...

DNA repair and survival of pathogenic E. coli O157:H7 was investigated following exposure to ultraviolet (UV) radiation from both low-pressure (LP) and medium-pressure (MP) lamps. This study included irradiation at UV doses used in drinking water treatment and lower doses indicative of potential treatment problems. Immediately following UV exposure, an average log inactivation of 4.5 or greater...

CoQ10 and lycopene are isoprenoid compounds with nutraceutical and pharmaceutical benefits. In this study, the effect of concomitant lycopene biosynthesis on CoQ10 accumulation in transformed Escherichia coli DH5α was studied. A lycopene production pathway including geranylgeranyl diphosphate synthase (crtE), phytoene synthase (crtB), and phytoene desaturase (crtI) from Erwinia herbicola was co...

This study aimed to compare the inactivation rate and the mechanisms of pathogenic bacteria in three matrixes (sawdust, rice husk and charcoal) during the composting process. The inactivation rate was evaluated with Escherichia coli strain and the damaged parts and/or functions were evaluated with three different media. Normalized inactivation rate constant in three media and from three matrixe...

The bactericidal action of sea water was measured as the difference in survival of cells of Escherichia coli in untreated and autoclaved portions of water samples. The beneficial effect of sterilization by heat on the survival of E. coli in sea water varied with season and was most marked during summer months, however, the magnitude of the effect differed greatly from sample to sample. The more...