Lipoxygenase Bleaching at Reduced Detergent Levels
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Solution Overview
Problem
Existing detergents struggle to effectively remove stains at reduced detergent levels, as previous uses of lipoxygenase showed limited bleaching performance at full dosage, necessitating a solution for improved stain removal with reduced detergent concentrations.
Innovation Solution
Incorporating lipoxygenase into detergent compositions with reduced detergent levels, specifically between 0-4 g/L, alongside optional biosurfactants and additional enzymes, to enhance stain bleaching and removal performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If lipoxygenase is used at full detergent dosage, then stain removal performance is maintained, but environmental sustainability and cost are worsened due to higher detergent consumption
Solution Approach 1:
The patent changes the concentration parameter of lipoxygenase in the wash liquor from typical full dosage levels to reduced levels (0-4 g/L), while compensating for this parameter change by optimizing the enzyme's catalytic properties and combining it with biosurfactants to maintain effective stain removal performance
Solution Approach 2:
The patent uses biosurfactants as an alternative or complement to traditional petrochemical surfactants, copying their cleaning function but with environmentally sustainable properties. The biosurfactants work synergistically with lipoxygenase to provide effective stain removal at reduced detergent concentrations
2Loss of substance
If detergent concentration is reduced, then environmental sustainability and cost are improved, but stain removal effectiveness deteriorates
Solution Approach 1:
The patent creates a composite cleaning system combining lipoxygenase enzyme with biosurfactants, where the enzyme provides oxidative bleaching action and the biosurfactants provide surfactant-based cleaning. This composite approach enables effective stain removal at reduced detergent concentrations by leveraging the complementary mechanisms of both components
Solution Approach 2:
The lipoxygenase enzyme acts as an intermediary catalytic agent that accelerates the breakdown of stain molecules through oxidation, working in conjunction with biosurfactants to enhance the overall cleaning effectiveness at lower detergent concentrations
3Reliability
If petrochemical detergent ingredients are used, then cleaning performance is achieved, but environmental sustainability worsens due to non-renewable sources and poor biodegradability
Solution Approach 1:
The patent employs biosurfactants derived from renewable biological sources that are biodegradable and environmentally friendly, replacing persistent petrochemical surfactants. These biological cleaning agents decompose naturally in the environment, eliminating the harmful persistence issue while maintaining effective cleaning performance
Solution Approach 2:
The patent changes the chemical composition parameters of the detergent system by incorporating lipoxygenase enzyme and biosurfactants, which alter the cleaning mechanism from purely surfactant-based to enzyme-assisted oxidative cleaning, thereby improving environmental sustainability while maintaining or enhancing cleaning performance
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
Lipoxygenase demonstrates significant stain bleaching performance even at reduced detergent concentrations, allowing for effective stain removal while minimizing detergent load, thus addressing environmental concerns and cost reduction.
Implementation Method 1
Lipoxygenase is an enzyme that catalyzes the oxidation of polyunsaturated fatty acids such as linoleic acid, linolenic acid and arachidonic acid, which contain a cis,cis-1,4-pentadiene unit and produces hydroperoxides of these fatty acids
Data Source
AI summary
The present invention concerns use of a lipoxygenase for bleaching or removing a stain from a surface, wherein the wash liquor comprises a reduced detergent level.