Stable Isotope Traceability for Seafood Authenticity
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Solution Overview
Problem
Current seafood traceability methods rely on easily falsifiable paper records and digital labels that are not intrinsic to the seafood, making it difficult to reliably monitor and certify the origin and authenticity of seafood products, particularly in preventing illegal, unreported, and unregulated (IUU) fishing and slave labor-derived seafood from entering the supply chain.
Innovation Solution
A method using stable isotopes, specifically analyzing the isotopic signatures of carbon (δ13C), nitrogen (δ15N), and sulfur (δ34S) values in animals fed a traceable diet containing a C1 metabolizing microorganism, which provides a robust and indelible signature that can be detected in the animal's biomass, allowing for the identification and certification of the seafood's origin.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If paper records and digital labels are used for traceability, then the system is easy to operate and implement, but the reliability and authenticity of the traceability data deteriorate due to easy falsification and tampering
Solution Approach 1:
The patent replaces mechanical/document-based traceability systems (paper records, digital labels) with a biological/isotopic traceability system. Stable isotopes of carbon, nitrogen, and sulfur serve as intrinsic markers that cannot be falsified, as they are naturally incorporated into the animal's tissues based on its diet. This substitution fundamentally changes from an external documentation system to an internal biological signature system, resolving the reliability issue while maintaining operational feasibility through isotopic analysis.
Solution Approach 2:
The animal itself serves as the traceability device by incorporating stable isotopes from its feed into its own tissues. The isotopic signature is self-generated and self-contained within the animal's biomass, eliminating the need for external labels or documents that can be tampered with. This self-service approach ensures that the traceability information is intrinsic to the product being traced.
2Measurement precision
If stable isotopes are used to identify food fraud, then the measurement precision and reliability improve, but the device complexity and analysis cost increase
Solution Approach 1:
The patent changes the measurement parameters from complex molecular or genetic analysis to stable isotope ratio analysis. By focusing on the ratios of stable isotopes (13C/12C, 15N/14N, 34S/32S) rather than attempting to identify specific compounds or sequences, the system achieves high measurement precision using relatively simple isotopic ratio mass spectrometry equipment. This parameter change simplifies the analytical approach while maintaining high reliability.
3Measurement precision
If multiple isotopic values (δ13C, δ15N, δ34S) are analyzed, then the measurement precision and traceability reliability improve, but the loss of time and analytical complexity increase
Solution Approach 1:
The patent analyzes multiple isotopic parameters (δ13C, δ15N, and δ34S) simultaneously to create a comprehensive isotopic fingerprint. This partial or excessive action of measuring more parameters than a single isotope would provide creates a multi-dimensional traceability signature that is highly specific and difficult to replicate. The combined analysis of three isotopic systems provides robust verification while the measurements can be performed in parallel, minimizing the time penalty.
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
This approach provides a reliable and cost-effective means to trace the source of seafood, ensuring that IUU and slave labor-derived products are excluded from the supply chain by embedding a traceable signature within the animal's tissues, which can be verified through common lab equipment, enhancing the integrity of seafood traceability.
Implementation Method 1
analyzing the test sample to obtain a test sample isotopic signature comprising a test sample isotopic δ13C value and a test sample isotopic δ15N value
Data Source
AI summary
The present disclosure provides methods of identifying or certifying an animal that consumed a traceable diet comprising a C1 metabolizing microorganism.