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2001 | 04 | 2 |

Tytuł artykułu

Antibacterial activity of thermally modified lysozyme

Warianty tytułu

Języki publikacji

EN

Abstrakty

EN
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 aim of the study was to determine the conditions of thermal modification of lysozyme and to assess the antibacterial action of this enzyme after modification. The dimer content in the modified lysozyme preparations depended on the pH and concentration of a given solution. It was found that modified lysozyme was characterized by higher antibacterial activity towards Micrococcus luteus and Escherichia coli in comparison to the unmodified form of the enzyme.

Wydawca

-

Rocznik

Tom

04

Numer

2

Opis fizyczny

http://www.ejpau.media.pl

Twórcy

  • August Cieszkowski Agricultural University of Poznan, Wojska Polskiego 31, 60-624 Poznan, Poland
autor

Bibliografia

  • Ibrahim H.R., Kato A., Kobayashi K., 1991, Antimicrobial effects of lysozyme against Gram-negative bacteria due to covalent binding of palmitic acid. J. Agric. Food Chem. 39: 2077-2082.
  • Ibrahim H.R., Hatta H., Fujiki M., Kim M., Yamamoto T., 1994, Enhanced antimicrobial action of lysozyme against Gram-negative and Gram-positive bacteria due to modification with perillaldehyde. J. Agric. Food Chem. 42: 1813-1817.
  • Ibrahim H.R., Higashiguchi S., Juneja L.R., Kim M., Yamamoto T.,1996, A structural phase of heat-denatured lysozyme with novel antimicrobial action. J. Agric. Food Chem. 44: 1416-1423.
  • Kijowski J., Leśnierowski G., 1995, The use of lysozyme for food preservation and in medical diagnosis and pharmacology. Biotechnologia 2, (29): 130 – 140 [in Polish].
  • Kijowski J., Leśnierowski G., Fabisz–Kijowska A., 2000, Lysozyme polymer formation and functionality of residuals after lysozyme extraction. In: Egg nutrition and biotechnology. J.S. Sim, S. Nakai, W. Guenter eds. CAB International Wallingford.
  • Leśnierowski G., 1997, Isolation of lysozyme from egg white by crystallization, ultrafiltration and chromatographic methods. Dissertation. Agricultural University of Poznań. [in Polish].
  • Leśnierowski G., Kijowski J., 2001, Isolation of lysozyme from hen egg white by ion –exchange techniques and its spray drying dehydratation. Pol. J. Food Nutr. Sci. 10, 51, 2: 43-47.
  • Nakamura S., Kato A., Kobayashi K., 1991, New antimicrobial characteristics of lysozyme-dextran conjugate. J. Agric. Food Chem. 39: 647-650.
  • Nakamura S., Kato A., Kobayashi K., 1992, Bifunctional lysozyme-galactomannan conjugate having excellent emulsifying properties and bactericidal effect. J. Agric. Food Chem. 40:735-739.
  • Pellegrini A., Thomas U., Fellenberg R., Wild P., 1992, Bactericidal activities of lysozyme and aprotinin against Gram negative and Gram positive bacteria related to their basic character. J.Appl. Bacteriol. 72: 180–187.
  • Proctor V.A., Cunningham F.E., 1988, The chemistry of lysozyme and its use as a food preservative and a pharmaceutical. Crit. Rev. Food Sci. Nutr. 26: 359-360.

Typ dokumentu

Bibliografia

Identyfikatory

Identyfikator YADDA

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