Two-Chamber Detergent Segregating Dispersin and Cellulase
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Solution Overview
Problem
Enzymes in detergents, particularly cellulase and dispersin, suffer from limited storage stability due to interactions with other ingredients, especially in liquid formulations, leading to a loss of enzymatic activity.
Innovation Solution
The detergent is divided into two spatially separated compositions, with dispersin in one and cellulase in the other, preventing interaction and maintaining enzyme stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If dispersin and cellulase are combined in the same detergent composition, then the detergent can provide comprehensive cleaning performance against multiple soil types, but the storage stability of dispersin deteriorates due to interaction with cellulase
Solution Approach 1:
The detergent composition is divided into two spatially separated compartments: a first compartment containing dispersin and a second compartment containing cellulase. This segmentation prevents direct interaction between the two enzymes during storage, thereby maintaining dispersin stability while preserving both cleaning functions. The compartments are designed to mix only during the washing process, enabling comprehensive soil removal without compromising enzyme stability during storage.
2Device complexity
If dispersin and cellulase are stored together in a liquid detergent, then the detergent formulation is simplified, but the enzymatic activity of dispersin is lost due to interaction with cellulase
Solution Approach 1:
The liquid detergent is formulated as a two-compartment system where dispersin and cellulase are stored in separate chambers. This segmentation maintains enzymatic activity by preventing harmful interactions during storage, while the liquid formulation remains relatively simple in each compartment. The compartments are designed to mix during use, providing the benefits of a simplified single-composition detergent without the stability problems.
3Ease of operation
If the detergent is stored at higher temperatures to maintain liquid consistency, then the detergent remains pumpable and applicable, but the storage stability of dispersin further deteriorates
Solution Approach 1:
The two-compartment liquid detergent system allows storage at higher temperatures without compromising dispersin stability, since the dispersin-containing compartment is isolated from cellulase. This segmentation enables the detergent to remain pumpable and applicable at elevated temperatures while maintaining enzyme activity, as the harmful interactions that cause stability loss are prevented by the physical barrier between compartments.
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 separation method enhances the storage stability of dispersin, allowing it to maintain enzymatic activity for up to eight weeks at temperatures up to 30°C, while preserving the cleaning effectiveness of both enzymes when combined during use.
Implementation Method 1
They catalyze the hydrolytic cleavage of β-1,6-glycosidic bonds of N-acetylglucosamines
Implementation Method 2
They can break down the cellulose fibers protruding from the fabric, thus eliminating the fuzz on cotton fabrics
Data Source
AI summary
The invention relates to a detergent comprising at least a first and a second detergent composition, characterized in that the first detergent composition comprises a dispersin, the second detergent composition comprises a cellulase, and the first and second detergent compositions are spatially separated from one another. The invention further relates to a packaging unit containing the detergent with a plurality of separate chambers, wherein a first chamber contains the first detergent composition and a second chamber contains the second detergent composition.