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US 8,524,481 B2Granted
Hide processing methods and compositions
AssigneeWest Bengal University of Technology
InventorShaon Ray Chaudhuri
Life of this patent
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Abstract
Provided in part herein are compositions that include isolated microbial enzymes, such as proteases, lipases, useful in dehairing leather. Also provided are methods for isolating proteases, lipases, from microbes, as well as methods of reusing these enzymes effectively for several cycles in an environment friendly process.
Claims40
A rawhide dehairing process, comprising:
- contacting a rawhide with a solution including a lipase and a protease for a predetermined amount of time, wherein the pH of the solution is from 5-10;
- and wherein the lipase is a Pseudomonas aeruginosa strain B/GZN secreted lipase;
- and removing hair from the rawhide.
A rawhide dehairing process, comprising:
- contacting a rawhide with a solution including a Pseudomonas aeruginosa lipase and a protease for a predetermined amount of time, wherein the pH of the solution is from 5-10;
- and wherein the protease is a Pseudomonas aeruginosa strain A/SRC002 secreted protease;
- and removing hair from the rawhide.
Dependencies are inferred from the claim text.