| 摘要 |
A process whereby an artificial rawhide comparable in qualities to natural rawhide can be produced. After pre-treatments (washing with water, liming, bleaching, etc.), rawhide is roughly cut into pieces (about 10 cm x 10 cm) and then further finely cut with the use of a chopper and a micro-cutter to thereby give collagen fibers. Next, water, a collagen fiber powder and gelatin are added thereto to give a sol or a gel having a moisture content of 60 to 80% by mass. Then it is extruded into a sheet using a screw extruder at 30{C or below and dried, thereby giving an artificial rawhide. This artificial rawhide in the form of a sheet is cut into rectangular pieces in a definite size. Then each piece is rounded in the width direction and tied in the length direction. Thus, a bone-shaped chewing gum for dogs can be obtained. |
