Biodegradable Dishwashing Composition for Low-Temperature Bacteria Removal
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Solution Overview
Problem
Existing dishwasher detergents fail to effectively remove resistant foodborne bacteria at low temperatures, leading to potential health risks from pathogens like Salmonella enterica, Escherichia coli, Enterococcus faecalis, Listeria monocytogenes, Bacillus cereus, and Staphylococcus aureus, especially in eco-modes and short cycles.
Innovation Solution
A composition comprising sodium percarbonate, biotechnology-derived protease (subtilisin), organic manganese compounds, and beta-cyclodextrins, in specific ratios, stabilizes these components and enhances antibacterial activity against resistant bacteria at low temperatures, forming clathrate complexes that activate percarbonate and peracetic acid for effective cleaning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If low temperature washing is used to save energy and time, then energy consumption and washing time are reduced, but the ability to remove resistant foodborne bacteria deteriorates
Solution Approach 1:
The invention changes the chemical parameters of the washing system by introducing a four-component composition (sodium percarbonate, protease, manganese compounds, and beta-cyclodextrins) that enables effective bacterial removal at lower temperatures through enhanced chemical reactivity and enzyme stability rather than thermal energy
Solution Approach 2:
The invention uses a composite formulation combining four distinct components that work synergistically: sodium percarbonate for oxygen release, protease for protein breakdown, manganese compounds for catalysis, and beta-cyclodextrins for stabilization and solubility enhancement, creating a material system that achieves high-temperature cleaning performance at low temperatures
2Loss of time
If short washing cycles are used to save time, then washing time is reduced, but the removal of resistant foodborne bacteria deteriorates
Solution Approach 1:
The invention modifies the kinetic parameters of the cleaning process by using a highly reactive four-component composition that achieves rapid bacterial cell wall disruption and protein denaturation, reducing the required contact time from typical 60-90 minutes to just 20 minutes while maintaining or improving effectiveness
Solution Approach 2:
The invention enables the washing process to rush through the critical bacterial killing phase more quickly by using the synergistic four-component composition that immediately activates upon contact with water, creating a rapid onset of antibacterial action that eliminates resistant bacteria in the first 20 minutes of the cycle
3Reliability
If high concentrations of antibacterial agents are used to improve bacterial removal, then bacterial removal effectiveness is improved, but environmental friendliness and safety deteriorate
Solution Approach 1:
The invention uses sodium percarbonate as an oxygen-based oxidant that releases active oxygen to disrupt bacterial cell walls and membranes, providing potent antibacterial action that is inherently safer and more environmentally friendly than chlorine-based or quaternary ammonium compounds, as it decomposes into water and oxygen without persistent harmful residues
Solution Approach 2:
The invention employs biodegradable components including protease enzymes and beta-cyclodextrins that break down naturally in the environment, replacing persistent synthetic antibacterial agents with biologically derived substances that provide effective bacterial removal but decompose harmlessly, reducing environmental accumulation and long-term ecological impact
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 composition achieves a synergistic antibacterial effect exceeding 99.9% removal of targeted bacteria within 20 minutes at 30°C, maintaining stability across wide pH and temperature ranges, and is environmentally friendly.
Implementation Method 1
forming clathrate complexes that activate percarbonate and peracetic acid for effective cleaning
Implementation Method 2
An oxygen bleaching agent, in particular, sodium percarbonate
Implementation Method 3
Manganese compounds, in particular, organic manganese salt complexes, at oxidation states +2 or +3
Implementation Method 4
Biotechnology-derived protease, which is stable in the presence of oxidants and metal salts, in particular, subtilisin
Implementation Method 5
The composition achieves a synergistic antibacterial effect exceeding 99.9% removal of targeted bacteria
Data Source
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AI summary
The invention relates to a cleaning composition comprising at least one oxygen bleaching agent, at least one protease, at least one manganese compound and at least one cyclodextrin and the use of said composition in hand and automatic machine dishwashing.