Polyoxyalkylene Amines Stabilize Enzymes in Liquid Detergents
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Solution Overview
Problem
Existing enzyme-containing liquid detergents face stability issues due to environmental influences, with known stabilizers like calcium salts causing cloudiness and boric acids forming undesirable by-products, limiting their effectiveness and environmental acceptability.
Innovation Solution
The use of polyoxyalkylene amines as stabilizers in enzyme-containing detergents, particularly in liquid forms, which provide significant enzyme stability even in small amounts, preventing cloudiness and by-product formation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If calcium salts are used as stabilizers, then enzyme stability is improved, but cloudiness occurs during storage
Solution Approach 1:
The patent changes the chemical parameter of the stabilizer from calcium salts to polyoxyalkylene amines, which fundamentally alters the stabilization mechanism while avoiding the cloudiness issue. The polyoxyalkylene amines provide enzyme stabilization through a different chemical interaction mechanism that does not cause light scattering or cloudiness in the aqueous system.
Solution Approach 2:
The patent employs polyoxyalkylene amines as a temporary, effective stabilizer that performs its function during storage and then decomposes or becomes inactive, avoiding long-term accumulation issues. The stabilizer is used in controlled amounts and does not persist as a harmful contaminant in the final product.
2Reliability
If boric acids are used as stabilizers, then enzyme stability is improved, but undesirable by-products are formed
Solution Approach 1:
The patent converts the potential harm of by-product formation into a benefit by selecting polyoxyalkylene amines that stabilize enzymes without forming unwanted by-products. The amine structures are designed to interact with enzymes in a way that provides protection while maintaining system purity and avoiding contaminant formation.
Solution Approach 2:
The polyoxyalkylene amines act as intermediary substances that mediate between the enzyme and the aqueous environment, providing stabilization through their amine groups interacting with enzyme surfaces while not reacting to form harmful by-products. They serve as a buffer that protects enzymes without compromising system integrity.
3Reliability
If boric acids are used as stabilizers, then enzyme stability is improved, but environmental acceptability deteriorates
Solution Approach 1:
The patent changes the chemical composition parameter from boric acids to polyoxyalkylene amines, which fundamentally alters the environmental profile. The polyoxyalkylene amine structure provides enzyme stabilization while being more environmentally compatible, avoiding the ecological concerns associated with boron compounds.
4Reliability
If polyols are used as stabilizers, then enzyme stability is improved, but cleaning effectiveness may be compromised
Solution Approach 1:
The patent changes the stabilizer parameter from polyols to polyoxyalkylene amines, which provides enzyme stabilization while maintaining cleaning effectiveness. The amine structure allows for better compatibility with surfactant systems and does not interfere with the cleaning action, unlike some polyols that may form unwanted complexes.
Data Source
AI summary
The invention relates to the use of polyoxyalkeneamines in detergents or cleaning agents containing enzymes, in order to increase enzyme stability, and also relates to a detergent or cleaning agent containing enzymes, in particular a liquid detergent or cleaning agent with improved enzyme stability.