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AssigneeTessenderlo Group NV
InventorsRomain Fillières, Marc Belmans, Frank Boers, Faye Maertens, Joeri Rogiers
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The method of the invention comprises the production of highly digestible hydrolysed keratinaceous material comprising the steps of (i) partly hydrolysing keratinaceous material with heat and pressure and (ii) optionally drying the resultant partly hydrolysed material comprising at least partly insoluble material and (iii) subjecting the optionally dried partly hydrolysed keratinaceous material to a chemical hydrolysis step with acid or base to obtain a highly digestible hydrolysed material, and (iv) purifying the highly digestible material. The invention further provides highly digestible keratinaceous material with an amino acid composition reflecting the amino acid composition of the raw material, wherein the amount of de-carboxylated amino acids is less than 500 ppm. Preferably all of the highly digestible material has a molecular weight lower than 10000 dalton, and preferably more than 95 wt % of the highly digestible keratinaceous material has a molecular weight of less than 5000 dalton.
A method for the production of a digestible hydrolysed keratinaceous material, comprising the steps of (i) partly hydrolysing a keratinaceous material in the presence of water with heat and pressure and (ii) subjecting the partly hydrolysed keratinaceous material to a chemical hydrolysis step with an acid or a base to obtain the digestible hydrolysed material, and (iii) purifying the digestible hydrolysed material, wherein more than 2 ton of keratinaceous material is processed per hour.
A method for the production of a digestible hydrolysed keratinaceous material comprising the steps of subjecting a partly hydrolysed, partly insoluble keratinaceous material obtained from thermal and pressure hydrolysis to a further chemical hydrolysis step with an acid or a base to obtain the digestible hydrolysed material, and purifying the highly digestible material, wherein more than 2 ton of keratinaceous material is processed per hour.
A method for the production of a digestible hydrolysed keratinaceous material comprising the steps of subjecting a keratinaceous meal with a moisture content of about 10 wt % or less, to a chemical hydrolysis step with an acid or a base to achieve the digestible hydrolysed material, and purifying the highly digestible hydrolysed material, wherein more than 2 ton of keratinaceous material is processed per hour.
Dependencies are inferred from the claim text.