Adhesion of Listeria monocytogenes to silica surfaces after sequential and competitive adsorption of bovine serum albumin and beta-lactoglobulin

Article Abstract:

The attachment of pathogenic Listeria monocytogenes cells to hydrophobic and hydrophilic surfaces coated with bovine serum albumin (BSA) and beta-lactoglobulin (beta-Lg) was studied. Maximum attachment was seen on bare hydrophobic surfaces and films formed by adsorption of beta-Lg and then BSA favored attachment more than films formed by adsorption of BSA and then beta-Lg. On the other hand, hydrophilic surfaces inhibited attachment of the bacterial cells.

Bacteria, Bacterial adhesion

---

Factors controlling acid tolerance of Listeria monocytogenes: effects of nisin and other ionophores

Article Abstract:

A study was conducted on the influence of ionophores such as nisin in Listeria monocytogenes serotype 4b strain acid tolerance. Survivability was determined by subjecting the strain to an acidic pH at 37-degrees centigrade. Results reveal that Escherichia coli O157:H7 and Shigella flexneri strains have higher acid tolerances than Listeria monocytogenes. Results indicate that nisin may be employed to regulate Listeria monocytogenes acid tolerance.

Ionophores

---

Suppression of Listeria monocytogenes colonization following adsorption of nisin onto silica surfaces

Article Abstract:

Experimental studies indicate that nisin films formed on silanized silica surfaces suppress the growth of Listeria monocytogenes. Colonization of L. monocytogenes is absent on surfaces with high level of nisin and these surfaces facilitate cellular degradation. Inhibition is negligible in surfaces with low level of nisin. Adsorbed resin can be used as a food grade antimicrobial agent on food contact surfaces.

Physiological aspects, Anti-infective agents, Food, Food microbiology, Polypeptides

Similar abstracts:

• Abstracts: Surface attachment of Listeria monocytogenes is induced by sublethal concentrations of alcohol at low temperatures
• Abstracts: A bHLH transcription factor gene, Twist-like1, is essential for the formation of mesodermal tissues of Ciona juveniles
• Abstracts: Resistance of Spiroplasma citri lines to the virus SVTS2 is associated with integration of viral DNA sequences into host chromosomal and extrachromosomal DNA
• Abstracts: Overexpression of the calcineurin target CRZ1 provides freeze tolerance and enhances the fermentative capacity of baker's yeast
• Abstracts: Testosterone and carotenoids: An integrated view of trade-offs between immunity and sexual signalling. Animal allure and health linked by plants pigments

This website is not affiliated with document authors or copyright owners. This page is provided for informational purposes only. Unintentional errors are possible.