Enzyme-Based Bacterial Adhesion Reduction in Laundry Detergents
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Solution Overview
Problem
Bacteria adhere to textile surfaces during use and remain after washing, causing bad odors due to ineffective adhesion reduction in existing laundering systems.
Innovation Solution
An aqueous composition containing endo-beta-1,4-glucanase, with a concentration of at least 1 mg/l, is used to contact bacteria such as Brevundimonas sp., Exiguobacterium sp., Sphingobium sp., and Sphingomonas sp. to reduce adhesion or release them from surfaces, preferably in a laundry detergent composition.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-generated harmful factors
If conventional laundering systems with bactericides are used, then bacterial growth is suppressed, but bacterial adhesion to textile surfaces persists causing bad odors
Solution Approach 1:
The patent uses endo-beta-1,4-glucanase as an intermediary substance that specifically targets and degrades the adhesive substances (polysaccharides) secreted by bacteria, thereby preventing bacterial adhesion to textile surfaces without directly killing the bacteria. This mediator approach resolves the contradiction by addressing the root cause of adhesion rather than relying on broad-spectrum bactericides.
Solution Approach 2:
The patent changes the chemical parameter of the adhesive substances by introducing an enzyme (endo-beta-1,4-glucanase) that specifically hydrolyzes beta-1,4-glycosidic bonds in polysaccharides. This parameter change in the adhesive substance structure prevents bacterial adhesion, thereby resolving the contradiction between bacterial presence and adhesion prevention.
2Object-generated harmful factors
If endo-beta-1,4-glucanase is added to laundry detergent composition, then bacterial adhesion is reduced by at least 50%, but the complexity of the detergent formulation increases
Solution Approach 1:
The endo-beta-1,4-glucanase enzyme serves multiple functions: it degrades adhesive polysaccharides to prevent bacterial adhesion, and it also breaks down complex carbohydrates and stains on textiles. This multi-functionality allows the detergent to address both bacterial adhesion and general cleaning needs, thereby reducing formulation complexity despite adding an enzyme component.
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 method effectively reduces bacterial adhesion by at least 50% or releases at least 50% of bacteria from textile surfaces, thereby minimizing bad odors and textile damage.
Implementation Method 1
contacting the bacteria with an aqueous composition comprising an endo-beta-1,4-glucanase
Implementation Method 2
an endo-beta-1,4-glucanase
Data Source
AI summary
The present invention provides a method for reducing adhesion of bacteria to a surface, or releasing the bacteria from a surface to which they adhere, using an endo-beta-1,4-glucanase.