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The effectiveness of antibacterial action of lysozyme modified by the membrane technique (ultrafiltration and reverse osmosis) against selected strains of bacteria was determined. Its bacteriostatic activity was dependent on modification conditions. Among lysozyme preparations modified by ultrafiltration the highest bacteriostatic activity against selected strains of Proteus mirabilis, Pseudomonas...
The aim of the study was to assess the effect of lysozyme with varying activity on the microbiological stability and sensory attributes of chicken breast muscles. Lysozyme solutions with the activities of 2 400, 6 000 and 12 000 U/ml, applied in the experiment, were sprayed onto the surface of the muscles. Microbiological analysis was conducted on the day of production, as well as after 48, 72, 120...
Modified atmosphere packaging (MAP) is an effective system for extending the shelf-life of meat and its products stored under refrigeration conditions. By the use of that system the shelf-life of raw meat can be two or three times longer and of meat processed products several times longer. Packaging system under vacuum or modified gaseous atmosphere has no significant effect on the quality and shelf-life...
Lysozyme (EC 3.2.1.17, mucopeptyde N-acetylmuramic-hydrolase) exhibits the ability to destroy cell walls of Gram-positive bacteria. The range of activity for this enzyme may be extended through modifications, as a result of which polymerized forms of lysozyme are obtained. It was found that lysozyme dimer exhibits bacteriostatic properties towards both Gram-positive and Gram-negative bacteria. The...
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