| abstract |
The invention relates to a process for obtaining a seed coating composition of leguminous plants. The process according to the invention consists in the alkaline hydrolysis of tanned leather by-products with 10% calcium oxide for 3 hours at 80 ° C followed by decantation, filtration through porous media of 0.45 μm in size, and enzymatic hydrolysis at 65 ° C with 0.4-1% Alcalase 2.4 L for 3 h, decanting and concentrating under vacuum to obtain a collagen hydrolyzate having 30% dry matter, 5% ash, 16% total nitrogen , H = 6, an average molecular weight of 16000 Da and a 5% free amino acid content relative to the protein, which is compatible with dolomite or limestone in the seed coating composition. |