New Collagen Extracts Conditioned for Applications in Crop Protection Against Pests

This study demonstrates that collagen hydrolysates obtained by associated enzymatic and chemical processes for high-yield extraction of collagen from leather waste, under mild reaction conditions, are fit for application in agriculture. Collagen polydispersions have the ability to form thin films on the surface of cereal seeds and, on the long term, to release amino acids, including essential amino acids, known as growth stimulators and organic nitrogen sources, ensuring increase of viability and of cereal seed and plant protection. Free amino acids have a stimulating effect on germination, while the amino acids released over time from the film matrix have a nutritional role. The amphoteric nature of collagen films, as well as their permeability to air and water vapours, provides beneficial physiological properties for cereal seeds. The synergy of collagen hydrophilicity, its known biodegradability, bio-active potential and film-forming properties recommend collagen polydispersions for applications in mixtures for seed treatment against pests.