| Titre : |
Optimising conditions for preparing collagen-type hydrolysates |
| Type de document : |
texte imprimé |
| Auteurs : |
Pavel Mokrejs, Auteur ; Dagmar Janacova, Auteur ; Lubomir Benicek, Auteur ; Tomas Plachy, Auteur ; Petr Svoboda, Auteur |
| Année de publication : |
2016 |
| Article en page(s) : |
p. 114-121 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Caractérisation
Collagène
Déchets organiques -- Recyclage
Hydrolysats de protéines
Hydrolyse enzymatique
Tendons -- Recyclage
|
| Index. décimale : |
675 Technologie du cuir et de la fourrure |
| Résumé : |
Tendons of slaughterhouse cattle are by-products in animal processing and contain a substantial proportion of collagen and also elastin. This contribution deals with preparing collagen-type hydrolysates from cattle tendons (long tendons, hind tendons, Achilles tendons, fore tendons) in a 3-stage process. Factors under investigation are effects of added enzyme and extraction temperature on efficiency of hydrolysis. The character of starting raw materials and technological conditions in hydrolysate preparation markedly affect hydrolysis efficiency. Lower efficiency of hydrolysis (percentage of starting material converted into hydrolysate), max. 30%, is achieved when processing long tendons containing a higher elastin proportion. On the contrary, when processing hind, Achilles and fore tendons, conversion nears 100%, thus evaluating starting raw material to the utmost. Hydrolysates prepared under defined conditions (adequate addition of enzyme and suitably chosen extraction temperature) from these tendons meet strict standards specifying ash content (2.0%) for food or pharmaceutical applications. High efficiency and variability of technological conditions in the processing of cattle tendons enables to prepare high quality products (hydrolysates or gelatines) suitable for food, cosmetics or pharmaceutical applications. |
| Note de contenu : |
- TABLES : 1. Composition of cattle tendons - 2. Results of hydrolysis efficiency in cattle tendons processing - 3. Composition of collagen hydrolysates prepared from cattle tendons
- FIGURES : 1. Flow chart of preparing collagen-based hydrolysates - 2. Influence of temperature and enzyme quantity on hydrolysis efficiency - 3. Influence of temperature and enzyme quantity on ash content hydrolysates |
| En ligne : |
https://drive.google.com/file/d/1VXbOnTyDqH9_4HDew2CbmzE_yJbcC9A7/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=26443 |
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 100, N° 3 (05-06/2016) . - p. 114-121
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