| 摘要 |
FIELD: process engineering. ^ SUBSTANCE: fish skin is soaked in solution containing sodium chloride and antiseptic agent at 18-20C for 4.0-6.0 hours. Then, fish skin is degreased by 0.8-1.0%-solution of enzyme preparation Liporesin "ôùà" for 1.5-2.0 h at 37-40C and intermittent mixing. Then, degreased fish skin is treated by 0.3-0.6%-solution of enzyme preparation Protosubtiline "ôùà" for 1.5-2.0 h at 37-40C and intermittent mixing. Fish skin treated by Protosubtiline "ôùà" is flooded by 0.3-0.6%-solution of enzyme preparation Collagenase and treated for 1.5-2.0 h at 37-40C and intermittent mixing. After every said treatment, fish skin is carefully rinsed by cold running water to remove residues of enzyme ppreraiton. Scales are remove from skin to be fleshed and, then, pickled for 8-12 h at 18-20C. Now, fish skin is tanned by willow bark broth for 12-20 h at 18-20C, aromatised, dubbed and dried. ^ EFFECT: perfected process. ^ 1 dwg, 1 tbl, 3 ex |
