Удосконалення технології склеєних ковбасних оболонок із несортової яловичої кишкової сировини

The object of this study is the technology of glued sausage casings from non-grade beef intestinal raw materials. Gluing is achieved through local tanning of the layers of intestinal raw materials to be glued. Tanning is used to give the gluing site irreversible properties, i.e., in the presence of such treatment, there is no delamination or separation of the gluing site. At the same time, due to the local tanning, the original properties of the raw material are preserved, namely, plasticity and elasticity. To accelerate the tanning process, the technique devised proposes using a preliminary local pre-hydrolytic acid treatment of the layers of raw materials to be glued. Local pre-hydrolytic acid treatment helps accelerate the diffusion process between the layers of intestinal casings to be glued and also helps reduce the duration of the operation of local tanning of the gluing sites treated in this way. The rational parameters for local tanning have been determined, namely, the concentration of the tanning solution and the duration of local tanning provided that the raw material has been pre-hydrolyzed: the rational duration of local tanning is 10 hours at a tannin concentration in the tanning solution of 1.3%, at a tannin concentration of 2.0% – 5...5.5 hours. It has been established that there are certain pairs of values of these factors at which the seam strength (seam breaking load) is not less than the limit value of the seam breaking load, which is a necessary functional and technological condition for glued sausage casings. It has been established that the preliminary local pre-hydrolyzed acid treatment helps reduce the local tanning process by more than two times