Laundry Detergent with Lipid Esterase and Alkoxylated Polyarylphenol
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Solution Overview
Problem
There is a need to enhance the performance of cleaning lipid esterase enzymes in detergent formulations for improved cleaning efficacy.
Innovation Solution
Combining lipid esterase enzymes with alkoxylated polyarylphenols in a detergent composition, where the alkoxylated polyarylphenol dispersant is a phenol with ethoxy groups and the lipid esterase is selected from specific classes such as Triacylglycerol lipases, which are active at alkaline pH, to create a synergistic cleaning effect.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If lipid esterase enzymes are used alone in detergent formulations, then they provide basic cleaning function, but cleaning efficacy is insufficient
Solution Approach 1:
The patent combines lipid esterase enzymes with alkoxylated polyarylphenol dispersants in a single detergent formulation. This merging of two different functional components creates a synergistic effect where the dispersant enhances the enzyme's cleaning performance, resolving the contradiction between basic cleaning function and insufficient cleaning efficacy.
Solution Approach 2:
The invention creates a composite detergent system comprising both enzymatic (lipid esterase) and chemical (alkoxylated polyarylphenol) cleaning agents. This composite approach integrates multiple mechanisms of action - enzymatic hydrolysis of lipid stains and dispersant action on soil particles - to achieve superior cleaning efficacy that neither component could provide alone.
2Productivity
If higher concentrations of lipid esterase are used to improve cleaning, then cleaning performance increases, but cost and potential harmful effects increase
Solution Approach 1:
The alkoxylated polyarylphenol dispersant acts as an intermediary that enhances the cleaning performance of lipid esterase enzymes. By introducing this mediator substance, the system achieves improved cleaning efficacy without requiring proportional increases in enzyme concentration, thereby reducing costs and maintaining enzyme stability.
Solution Approach 2:
The invention changes the chemical environment parameters by introducing alkoxylated polyarylphenol dispersants that modify the detergent formulation's properties. This parameter change creates a more favorable environment for enzyme activity, allowing lower enzyme concentrations to achieve the same or better cleaning performance, thus addressing both cost and stability concerns.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The combination of lipid esterase and alkoxylated polyarylphenols enhances cleaning performance, as demonstrated by increased stain removal in laundry detergent formulations, with specific ethylene oxide chain lengths showing significant improvements in stain removal efficacy.
Implementation Method 1
Lipid esterase are enzymes that hydrolyse the ester bonds in a lipid
Implementation Method 2
hydrolyse the ester bonds in a lipid
Implementation Method 3
alkoxylated polyarylphenols with a lipid esterase in a detergent formulation
Data Source
AI summary
A laundry detergent composition comprising: (i) from 0.5 to 20 wt% of a alkoxylated polyarylphenol having an average of 5 to 70 alkoxy groups; (ii) from 4 to 50 wt% of an anionic surfactant, other than the alkoxylated polyarylphenol; and, (iii) a lipid esterase at a level of from 0.0005 to 0.5 wt % of pure enzyme, wherein the lipid esterase is selected from Triacylglycerol lipase (E.C. 3.1.1.3); Carboxylic ester hydrolase (E.C. 3.1.1.1); Cutinase (E.C. 3.1.1.74); Sterol esterase (E.C. 3.1.1.13); and, Wax-ester hydrolase (E.C. 3.1.1.50). A domestic method of treating a textile, the method comprising the step of: treating a textile with an aqueous solution of 0.5 to 20 g/L of the laundry detergent composition.