Fluorescent Food-Grade Cleaning Tracers for Residue Detection
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Solution Overview
Problem
Current methods for evaluating and ensuring adequate cleaning and antimicrobial intervention in food processing environments are inadequate, leading to potential contamination and foodborne illnesses due to insufficient detection of chemical residues, equipment design flaws, and incomplete surface coverage of antimicrobial solutions.
Innovation Solution
A composition of GRAS ingredients, including Riboflavin, Quinine, Folic Acid, and other food-grade additives, is used to create a solution that enhances coverage, adherence, and allows for quantitative detection of residues and coverage using ultraviolet fluorescence, ensuring effective cleaning and intervention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional visual inspection methods are used to evaluate cleaning efficacy, then the inspection process is simple and quick, but the detection sensitivity is insufficient to detect low levels of chemical residues and contamination
Solution Approach 1:
The patent introduces fluorescent tracers as intermediary substances that are applied to equipment surfaces before cleaning. These tracers serve as mediators between the cleaning process and detection system, allowing invisible residues to be converted into visible fluorescent signals that can be detected with high sensitivity using UV light sources and fluorometers, thus resolving the contradiction between detection sensitivity and method complexity.
Solution Approach 2:
The patent utilizes fluorescence color changes as an indicator of cleaning efficacy. By applying fluorescent tracers that emit visible light under UV illumination, the system transforms invisible chemical residues into brightly colored fluorescent signals. This color change mechanism enables highly sensitive detection of contamination levels that would be imperceptible to the naked eye, thereby improving measurement precision without requiring overly complex equipment.
2Area of stationary object
If microbiological swab sampling is used to test cleaning effectiveness, then specific microbial contamination can be detected, but the testing area is limited and the cost and time per test are high
Solution Approach 1:
The fluorescent tracer system enables self-service monitoring where the tracer itself provides the detection signal. After application and cleaning, the remaining fluorescent signal directly indicates areas that were not properly cleaned, eliminating the need for separate laboratory analysis. This allows operators to perform widespread area inspection quickly on-site, significantly expanding the effective testing area and reducing both time and cost compared to traditional microbiological swabbing.
3Measurement precision
If chemical residue testing is performed to ensure complete detergent removal, then contamination risks are reduced, but rapid test kits are not available and analysis time is lengthy
Solution Approach 1:
The patent replaces complex chemical analysis systems with a simplified optical detection system. Instead of using lengthy chromatographic or spectrometric methods to analyze chemical residues, the system uses fluorescent tracers combined with UV light sources and fluorometers to provide rapid visual and quantitative measurement of detergent removal effectiveness. This substitution of detection mechanics achieves high measurement precision while reducing analysis time from hours to minutes.
4Productivity
If spray systems are used to apply antimicrobial solutions to food surfaces, then coverage can be applied efficiently, but it is difficult to verify adequate surface coverage and contact time
Solution Approach 1:
The patent implements a feedback mechanism by incorporating fluorescent tracers into the antimicrobial spray solution. As the spray is applied to food surfaces, the fluorescent marker provides immediate visual feedback on coverage areas. UV lights positioned along the processing line allow real-time monitoring of surface coverage, and fluorometric sensors can quantitatively measure the amount of solution deposited. This feedback system enables operators to verify adequate coverage and contact time while maintaining high application efficiency, eliminating the information loss about actual spray performance.
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 solution provides a practical and scientific method to validate and verify cleaning and antimicrobial intervention effectiveness, detecting residues down to 1 ppm and ensuring complete surface coverage, thereby enhancing food safety.
Implementation Method 1
allows for quantitative detection of residues and coverage using ultraviolet fluorescence
Data Source
AI summary
The invention relates to cleaning and food processing aide applications whereby unique compositions of GRAS or food additives were developed to assess the effectiveness of cleaning procedures at various stages of the processes and to assess the delivery and adherence of food processing aides. Employing such solutions to clean and/or sanitize processing equipment provides a method to evaluate and enhance the effectiveness of procedures used to remove the respective fluorescent detergents, sanitizers or organic residues from equipment or niches and reduce contamination. Similar compositions were developed for assessing processing aide food surface coverage, contact time and adherence. In addition, unique compositions were invented that increase processing aide coverage and adherence. Quantification of the presence or absence of the fluorescent GRAS or food additive compositions produces results for validation, monitoring and/or verification of food safety intervention procedures/processes.