| Résumé : |
The production of biopolymers from leather waste is an important and notable process on the tanning waste management research. The basic aim of the present work is the conversion of non-tanned solid wastes from the tanning industry (splits, defective hides) into high added value biopolymers. Those collagenic biomaterials are at the forefront of potential new applications in tissue engineering within fields such as cosmetics, medicine or veterinary. This treatment will entail a great progress in both environmental and economical terms. The first stage of the project was centered on finding, through a factorial experimental design, the most suitable treatment for the isolation of biopolymers. The effect of variables such as: level of grinding (surface area for chemical interaction); chemical treatment (acid, alkaline and neutral medium); time; temperature and agitation, were studied. Those extracted biomaterials could be formulated according to future application as gel, film, sponge or fibers. All the biopolymers obtained through this process were characterized in order to ascertain the significance of the variables studied. “Tailor-made” biopolymers will be designed, with the desired molecular weight, polymorphic formulation (form), optimized properties and characteristics, that is, perfectly adapted to their future applications. |
Aller sur edunet
Accueil
Tailor-made biomaterials from collagenic wastes in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CVI, N° 5 (05/2011)
