Biofilm Surface Sampling Composition for Representative Microbe Collection
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Solution Overview
Problem
Existing methods for collecting microorganisms, particularly those in biofilm form, are ineffective due to the complex and variable structure of biofilms, leading to incomplete and non-representative sampling, which is economically unprofitable and time-consuming, especially in industries like agri-food and healthcare.
Innovation Solution
A method using a composition comprising anionic surfactants, specific enzymes (protease, polysaccharidase, laccase, lipase, cellulase, mannanase), and a sequestering agent, applied in a controlled manner to degrade biofilm matrices, followed by sterile collection and preservation for laboratory analysis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional sampling methods are used, then the sampling process is simple, but the sampling effectiveness is poor due to inability to penetrate biofilm structures
Solution Approach 1:
The sampling solution is segmented into multiple functional components: surfactants for initial contact and loosening, specific enzymes (protease, polysaccharidase, lipase, cellulase, mannanase) for targeted degradation of biofilm matrix components, and stabilizers for maintaining activity. This segmentation allows each component to address specific aspects of the complex biofilm structure, improving sampling effectiveness while keeping the overall method manageable.
Solution Approach 2:
The invention uses a composite sampling solution combining multiple types of enzymes, surfactants, and stabilizers. This composite approach creates a synergistic effect where the combination of different enzymatic activities and surfactant properties overcomes the complex and variable structure of biofilms more effectively than single-component methods, thereby improving reliability without excessive complexity.
2Reliability
If extensive cleaning cycles are performed to eliminate biofilms, then contamination is reduced, but production downtime increases and costs rise
Solution Approach 1:
The enzymatic sampling solution performs preliminary degradation of biofilm structures during the sampling process itself. By applying enzymes that break down extracellular polymeric substances before formal cleaning cycles, the method reduces the burden on subsequent cleaning operations, allowing for shorter and less frequent intensive cleaning cycles, thereby maintaining contamination control while preserving production yield.
Solution Approach 2:
The sampling solution contains its own biofilm-degrading capabilities through the incorporated enzymes and surfactants. This self-service approach allows the sampling process to simultaneously perform preliminary biofilm disruption, reducing the need for separate, extensive cleaning cycles and minimizing production downtime while maintaining effective contamination control.
3Reliability
If conventional biocides are used to eliminate microorganisms, then disinfection is achieved, but biofilm resistance reduces effectiveness
Solution Approach 1:
The invention replaces the chemical mechanism of conventional biocides with an enzymatic mechanism. Instead of using biocides that must penetrate and kill microorganisms (to which biofilms have developed resistance), the enzymatic solution mechanically degrades the biofilm matrix structure itself, exposing microorganisms to subsequent treatment or allowing their natural removal, thereby overcoming biocide resistance while maintaining disinfection effectiveness.
Solution Approach 2:
The invention changes the fundamental parameter of action from chemical biocide application to enzymatic degradation. By shifting from a chemical killing mechanism to a biological degradation mechanism that targets the biofilm matrix, the method bypasses the resistance mechanisms that microorganisms have developed against conventional biocides, restoring effectiveness without the harmful effects of biocide resistance.
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
Enables efficient, representative collection of microorganisms, whether planktonic or in biofilm form, allowing precise identification and targeted treatment, reducing downtime and costs.
Implementation Method 1
a composition for collecting microorganisms comprising one or more surfactants, and at least two enzymes chosen from the group comprising a protease, a polysaccharidase, a laccase, a lipase, a cellulase and a mannanase
Implementation Method 2
said surfactant(s) present in said collection composition comprise(s) an anionic surfactant, or consist (essentially) of one or more anionic surfactants
Implementation Method 3
a sequestering agent
Data Source
AI summary
A method is for collecting microorganisms from surfaces, for subsequent laboratory detection and analysis.