IP Library Granted Patent US 9,222,216
Granted Patent B2
US 9,222,216 · App. 14/681,849 · Granted Dec 29, 2015

Methods for enzymatic treatment of wool

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Quick Facts
Patent No.
US 9,222,216
App. No.
14/681,849
Granted
Dec 29, 2015
Kind
B2
Abstract

Disclosed are methods for enzymatic treatment of wool using bacterial protease, cellulase, and xylanase enzymes.

Claims (15)

1. A method for enzymatic treatment of wool fibres, the method comprising contacting the wool fibres with a composition comprising at least one protease, at least one cellulase, at least one xylanase, and a plurality of calcium hydroxyapatite nanoparticles.

2. The method of claim 1 , wherein the protease, the cellulase, and the xylanase are bacterial enzymes.

3. The method of claim 1 , wherein the contacting step is performed at a temperature of about 25° C. to about 70° C.

4. The method of claim 1 , wherein the contacting step is performed at pH of about 2.0 to about 10.0.

5. The method of claim 1 , wherein the contacting step is performed for a period of about 3 hours to about 15 hours.

6. A composition for enzymatic treatment of wool fibres, the composition comprising at least one protease, at least one cellulase, at least one xylanase, and a plurality of calcium hydroxyapatite nanoparticles.

7. The composition of claim 6 , wherein the protease, the cellulase, and the xylanase are bacterial enzymes.

8. The composition of claim 6 , wherein the composition has a pH of about 2.0 to about 10.0.

9. A kit for enzymatic treatment of wool fibres, the kit comprising:

at least one protease;

at least one cellulase;

at least one xylanase;

a plurality of calcium hydroxyapatite nanoparticles; and

instructions for use.

10. The kit of claim 9 , wherein the protease, cellulase, and xylanase are bacterial enzymes.

Assignments (3)
RELEASE OF SECURITY INTEREST Recorded Jul 31, 2019
From: CRESTLINE DIRECT FINANCE, L.P.
To: EMPIRE TECHNOLOGY DEVELOPMENT LLC
Reel/Frame 049924/0794 →
SECURITY INTEREST Recorded Jan 29, 2019
From: EMPIRE TECHNOLOGY DEVELOPMENT LLC
To: CRESTLINE DIRECT FINANCE, L.P.
Reel/Frame 048373/0217 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 13, 2015
From: MUKHOPADHYAY, ARKA; CHAKRABORTI, KRISHANU; DUTTA, NALOK
To: UNIVERSITY OF CALCUTTA
Reel/Frame 035392/0605 →