EP0350098A1
Expired / Lapsed
EP
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Method for evaluating detergent cellulases
Assignee: Procter and Gamble Co
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Filing: 1989-06-28
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Granted: —
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Expires: 2009-06-28
Abstract
Abstract An efficient, performance-predictive, analytical method for evaluating the performance of cellulases preparations for use in detergent compositions, is disclosed. The method measures the removal by cellulase of a radiolabelled substituted cellulosic material, which is deposited onto a fabric substrate. The substituted cellulosic material is preferably sodium carboxymethyl-cellulase radiolabelled with Carbon 14.
Inventors
- 👤 Christian Roland Barrat
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-04 08:22
CPC Classifications
C; C12; C12Q; C12Q1/00; C12Q1/34; G; G01; G01N; G01N2333/00; G01N2333/90; G01N2333/914; G01N2333/924; G01N2400/00; G01N2400/10; G01N2400/12; G01N2400/24; G01N2400/26
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
64 words
A method for evaluating the performance of cellulase preparations for use in detergent compositions, comprising the steps of : - depositing a radiolabelled substituted cellulosic material onto a fabric substrate. - washing said fabric substrate with a composition containing the cellulase preparation to be evaluated. - determining, by radioactivity measurement, the amount of substituted cellulosic material removed from said fabric substrate, by the cellulase.
Claim 2
Independent Claim
64 words
A method for evaluating the performance of cellulase preparations for use in detergent compositions, comprising the steps of : - depositing a radiolabelled substituted cellulosic material onto a fabric substrate. - washing said fabric substrate with a composition containing the cellulase preparation to be evaluated. - determining, by radioactivity measurement, the amount of substituted cellulosic material removed from said fabric substrate, by the cellulase.
Claim 3
Dependent Claim
19 words
The method of claim 1 wherein the composition containing the cellulase preparation to be evaluated is a detergent composition.
Claim 4
Dependent Claim
13 words
The method of claim 1 wherein the substituted cellulosic material is carboxymethyl cellulose.,
Claim 5
Dependent Claim
13 words
The method of claim 1 wherein the fabric substrate is a cellulosic fabric.
Claim 6
Dependent Claim
15 words
The method of claim 1 wherein the substituted cellulosic material is labelled with carbon 14.
Claim 7
Dependent Claim
22 words
The method of claim 5 wherein the substituted cellulosic material is carboxy methyl cellulose labelled by carbon 14 on the carboxy groups.
Claim 8
Dependent Claim
22 words
The method of claim 1 wherein the radioactivity measurement to determine the removed amount of substituted cellulosic material, utilizes scintillation counting techniques.
References Cited (Backward Citations)
GB2075028A
Cited
EP0244932A2
Cited
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