Extraction of Collagen from By-products, Designed to Increase the Quantity and Quality of Production in Agriculture

Abstract

Collagen polydispersions obtained by associated thermal and enzymatic processes for high-yield extraction of collagen from waste, under mild reaction conditions, are fit for application in agriculture. This study presents the possibility of using thermal and enzymatic processes of byproducts from fishing industry to obtain collagen extracts, to increase the quantity and quality of oilseeds and horticultural production. Collagen polydispersions were characterized by chemical and instrumental analyses: gravimetric, volumetric, potentiometry, IR spectroscopy, tensiometer methods, Dynamic Light Scattering (DLS). Analytical investigation has shown that: the collagen polydispersions have bioactive properties due to the content of small sized particles (<100 nm range), such as free amino acids and oligopeptides, able to penetrate the cell membranes and seed coating; the larger sized particles (100-10000 nm ranges) such as polypeptides, ensure the bioactive deposit in the film matrix on the surface, with long term releasing ability; resistance of crosslinked film of fish gelatin for indehiscent treatment in rape crop. The synergy of collagen hydrophilicity, its known biodegradability, bio-active potential and film-forming properties recommend collagen polydispersions for applications in mixtures for treatment in agricultural crops.

Effects of Ultraviolet (UV) Treatment on the Properties of Black Tilapia Fish Skins Gelatin

“…Niculescu et al [11], reported that the collagen films were hydrophilic and favourable to water absorption. They noted that the contact angle of the water with the collagen film is lower compared to bovine collagen which exhibit moderate hydrophilicity.…”