The present invention relates to a method of producing gelatine, the method comprising the steps of: providing animal material containing collagen; cutting the animal material with at least one fluid cutting jet to form animal material sections; hydrolysing the collagen in the animal material sections to form gelatine; and isolating the gelatine. The invention also relates to a fluid jet cutting device and to the use of a fluid jet cutting device in the production of gelatine. The invention is particularly useful in the production of gelatine from pig skin and/or cow hides and/or fish skin.

The present invention relates to a method of producing gelatine, the method comprising the steps of: providing animal material containing collagen; cutting the animal material with at least one fluid cutting jet to form animal material sections; hydrolysing the collagen in the animal material sections to form gelatine; and isolating the gelatine. The invention also relates to a fluid jet cutting device and to the use of a fluid jet cutting device in the production of gelatine. The invention is particularly useful in the production of gelatine from pig skin and/or cow hides and/or fish skin.

The present invention relates to a method for providing a dry highly digestible material from a starting material, the method comprising hydrolysing the starting material, providing a hydrolysed material; subjecting the hydrolysed material to a fat removal process, providing a fat-reduced material; and subjecting the fat-reduced material to an air drying process resulting in a dried highly digestible material. hydrolysed material to a drying process resulting in a dried highly digestible material.

The present invention relates to a method for providing a dry highly digestible material from a starting material, the method comprising hydrolysing the starting material, providing a hydrolysed material; subjecting the hydrolysed material to a fat removal process, providing a fat-reduced material; and subjecting the fat-reduced material to an air drying process resulting in a dried highly digestible material. hydrolysed material to a drying process resulting in a dried highly digestible material.

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.

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 turkey collagen hydrolysate composition is prepared from turkey collagen sources, wherein the composition has: a protein concentration of from about 80 wt % to 100 wt %; a protein molecular weight distribution wherein from about 80% to 100% of the protein in the turkey collagen hydrolysate composition has a molecular weight of from about 500 to about 15,000 Daltons; a protein solubility of from about 97% to 100% at a pH selected from the group consisting of pH 7.0, pH 3.4, pH 5, and all of pH 7.0, pH 5, and pH 3.4; and a protein amino acid content of 3 to 25 glycine (g/100 g sample), 0.5 to 15 hydroxyproline (g/100 g sample), 1 to 18 proline (g/100 g sample), 0.02 to 4 taurine (g/100 g sample), and 0.05 to 3 tryptophan (g/100 g sample). Methods of preparing turkey collagen hydrolysate compositions are described.