Pulsed-electric field treatment enhances the bactericidal action of nisin against Bacillus cereus

Article Abstract:

Pulsed-electric field (PEF) treatment can enhance the bacteriocidal effect of nisin. Nisin is an antibacterial protein produced by Lactococcus lactis that is used as a food preservative. PEF is also used as a non-thermal form of pasteurization.

Antibacterial agents, Pulsed radiation

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Sensitivities of germinating spores and carvacrol-adapted vegetative cells and spores of Bacillus cereus to nisin and pulsed-electric-field treatment

Article Abstract:

Germinating spores of Bacillus cereus are sensitive to pulsed-electric-field (PEF) treatment or nisin. Carvacrol increased the sensitivity of the germinating spores to nisin but not to PEF treatment or nisin combined with PEF treatment.

Spores (Bacteria), Bacterial spores, Germination

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Quantification of the effects of salt stress and physiological state on thermotolerance of Bacillus cereus ATCC 10987 and ATCC 14579

Article Abstract:

The quantification of the effects of salt stress response on thermal inactivation kinetics for exponential-, transition- , and stationary-phase cells of the two Bacillus cereus strains, ATCC 10987 and ATCC 14579 was performed. It was observed that the strain diversity greatly influenced the thermotolerance and survival curvatures and the maximum adaptive salt stress response in exponential-phase was comparable to the physiological state on thermotolerance.

Netherlands, Science & research, Drugs, In-Vitro Diagnostic Substance Manufacturing, Bacterial Culture Products, Physiological aspects, Environmental aspects, Bacteriology, Bacterial cultures, Biocompatibility, Ecological stress

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