| Titre : |
Limiting microbial activity as an alternative approach of bovine hide preservation, Part I : Efficacy of developed formulations |
| Type de document : |
texte imprimé |
| Auteurs : |
Majher I. Sarker, Auteur ; Wilbert Long, Auteur ; Cheng-Kung Liu, Auteur |
| Année de publication : |
2019 |
| Article en page(s) : |
p. 271-278 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Catégories : |
Chlorure de sodium -- Suppression ou remplacement
Cuirs et peaux -- Conservation
Cuirs et peaux de bovins
Formulation (Génie chimique)
Hydratation
Microbiologie
Produits de conservation du cuir
|
| Index. décimale : |
675 Technologie du cuir et de la fourrure |
| Résumé : |
The traditional wet salting technique of bovine hide curing requires 95% or more saturated brine solution which generates a huge amount of pollution and salinity in the form of total dissolved solids (TDS) and chlorides (Cl-) during leather processing. Therefore, much attention is currently placed on tanneries requiring reduction or eliminate the use of sodium chloride as a raw hide/skin preservative. For the preservation of hide it is essential to arrest microbial attack as the collagen-breaking enzymes called collagenase produced by the bacteria can cause serious degradation on hide which leads to the putrefaction of raw hide before converting them into leather. In this research effort, a number of formulas have been developed and evaluated for their efficacy in preserving bovine hide for 30 days or more. This attempt has been made to evolve a least chloride containing curing system for salinity abatement, where 35% saturated brine is used as the base solution. The developed formulations have been evaluated with better efficacy than the conventional technique on limiting bacterial growth, controlling yeast and mold during the storage period of cured hide. The alternative methods also offer quick rehydration of cured hide during leather processing and Airborne Ultrasonic scanning detects no detrimental impact on alternatively cured hides. Therefore, this new development is ideally suited for hide preservation through better protection of hide from microbial degradation and improved conservation of environment in compare to the traditional method. |
| Note de contenu : |
- EXPERIMENTAL : Materials - Protocol for the alternative hide preservation - Effectiveness of the developed formulations in limiting microbial growth - Measurement of water activity (wa) and moisture content - Determination of bacterial colony count - Yeast and molds determination experiment - Airborne ultrasonic (AU) scanning - Rehydration of cured hides - Degradation assessment of cured hides
- RESULTS AND DISCUSSION : Efficacy analysis of the developed formulations - Water activity and moisture content - Bacterial colony count on cured hides - Yeasts and molds colony count on cured hides - Airborne ultrasonic testing of cured hides - Rehydration anlaysis - Physical changes of the cured hides |
| En ligne : |
https://drive.google.com/file/d/1X2pm9-1GO3lbEGjTfI_g-3jik5QoP7iS/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=32786 |
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CXIV, N° 7 (07/2019) . - p. 271-278
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Limiting microbial activity as an alternative approach of bovine hide preservation, Part I : Efficacy of developed formulations in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXIV, N° 7 (07/2019)
