Collagen for industrial purposes; Collagen used as a raw ingredient in the manufacture of cosmetics; Non-nutritive mixture of collagen protein and water for forming an edible casing on food products in co-extrusion food processing; Non-nutritive mixture of protein in the nature of collagen and water for use as an ingredient in the manufacture of food, namely, for forming an edible, external layer on food products during the co-extrusion processing of foodstuffs