[article]
| Titre : |
Quarternary ammonium compound as bactericide in hide brine curing and presoaking processes |
| Type de document : |
texte imprimé |
| Auteurs : |
C. Veyselova, Auteur ; Meral Birbir, Auteur ; Didem Berber, Auteur |
| Année de publication : |
2012 |
| Article en page(s) : |
p. 336-341 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Catégories : |
Ammoniums quaternaires -- Composés
Antibactériens
Peaux brutes -- Trempe
|
| Index. décimale : |
675 Technologie du cuir et de la fourrure |
| Résumé : |
Inactivation of bacterial activity on hides is necessary during brine curing and presoaking processes. Therefore, bactericidal effect of 0.02% quaternary ammonium compound containing didecyl dimethyl ammonium chloride and benzyl dimethyl ammonium chloride on the mixed culture of Bacillus licheniformis, Bacillus pumilus, Enterococcus faecium, Staphylococcus intermedius, Pseudomonas luteola, Enterobacter cloacae and Vibrio fluvialis was examined in the test media containing 26% NaCl and organic substances by tube dilution method. In addition, the ability to grow of the mixed culture prepared from the test isolates was examined in the salt free Mueller Hinton Broth and in Mueller Hinton Broth containing 10%, 15% and 26% NaCl during 72 days. Bacterial count of the mixed culture in Mueller Hinton Broth containing 26% NaCl was found higher than those in the the salt free Mueller Hinton Broth media after 2, 4 and 14 hours exposure times with the test agent. Our results showed that the test agent could be used in the brine solution where the salt slightly decreased effectiveness of the antibacterial agent. Additionally, it was observed that the isolates of the mixed culture were annihilated faster in the salt free Mueller Hinton Broth than the broth media containing different concentrations of NaCl. After the storage, bacterial counts in the Mueller Hinton Broth media containing different NaCl concentrations were not reduced to low levels. As a result, quaternary ammonium compound tested may be used in hide brine curing and presoaking processes to control Gram positive and Gram negative bacterial activities on hides. In addition, only NaCl application is not enough to control bacterial activity on hides. |
| Note de contenu : |
- Determination of protease activity
- Determination of lipase activity
- Determination of bactericidal activity of the test agent on the mixed culture of the test bacteria in salt-free MHB and MHB containing 26 % NaCl at 37°C and different contact times
- Examining the ability to grow of the mixed culture of the test isolates at different salt concentrations and several contact times at 25°C
- Table I : Proteolytic and lipolytic activities of the test isolates
- Table II : The bacterial cell counts of the mixed culture in salt free MHB and MHB with 26% NaCl containing different concentrations of the test agent at 37°C |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=15935 |
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CVII, N° 10 (10/2012) . - p. 336-341
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Quarternary ammonium compound as bactericide in hide brine curing and presoaking processes in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CVII, N° 10 (10/2012)
