Edible collagen casing

Details Edible collagen casing Edible collagen casing

A - Human Necessities

22

C

99/89

A22C 13/00 (2006.01)

Patent

CA 1056644

ABSTRACT OF THE DISCLOSURE This invention relates to an improvement in a process for forming an edible tubular collagen casing wherein a hide collagen source is formed into an aqueous slurry, extruded through an annular die for forming a tubular casing, first tanned with an aluminum tanning agent, and then subsequently tanned with glutar- aldehyde and to the resulting produce made by the improved process. The improvement for improving the physical characteristics of the edible collagen casing in terms of shirrability, shirred strand characteristics, linking, and frying characteristics comprises: contacting said extruded casing in a first tanning bath containing from about 0.3 - 1.25% aluminum calculated as Al2(SO4)3 ? 14H20 based on the weight of the bath for a period of from about 2 - 15 minutes; contacting said first tanned casing in said subsequent tanning bath containing from about 80 - 300 ppm (parts per million) glutaraldehyde for a time sufficient to insure substantially complete dynamic equilibrium between said casing and said bath; and precipitating aluminum in said casing by passing said casing through a bath having a pH of from about 7.8 - 8.2.

235818

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