Plant Isotopic Fingerprinting for Natural Source Tracing
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Solution Overview
Problem
The cannabis industry faces challenges in tracing the source of cannabis products due to resistance to chemical tracers, necessitating a natural alternative that can reliably distinguish legally produced cannabis from illegal counterparts.
Innovation Solution
Utilizing nutrient solutions with unique radiogenic and mass-dependent isotopic fingerprints based on strontium (Sr), neodymium (Nd), calcium (Ca), magnesium (Mg), and potassium (K) isotopes, produced through leaching and drying of specific rocks, to create a natural tracer for plants.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If chemical tracers are added to cannabis to trace its source, then the reliability of tracing is improved, but the acceptance by producers and users deteriorates due to negative connotations of chemical additives
Solution Approach 1:
The patent changes the parameter of the tracer from synthetic chemical substances to naturally occurring isotopic compositions. By utilizing the natural isotopic fingerprint already present in geological materials and transferred through the plant's nutrient uptake, the solution maintains tracing reliability while eliminating the harmful perception of chemical additives. The isotopic ratios (e.g., 87Sr/86Sr, 143Nd/144Nd) serve as inherent markers without requiring external chemical intervention.
Solution Approach 2:
The patent introduces natural geological materials (rocks, minerals, soils) as intermediaries that carry isotopic fingerprints from their formation environment through the plant's nutrient solution. These natural materials act as mediators between the producer's location and the final product, transferring traceable isotopic information without requiring direct addition of synthetic tracers to the cannabis plant.
2Reliability
If chain of custody tracking systems are implemented to identify cannabis source, then legal compliance is improved, but the system becomes difficult or impossible to maintain as the industry grows
Solution Approach 1:
The patent enables the cannabis product to self-identify its source through its inherent isotopic fingerprint. The plant naturally absorbs isotopes from its local geological environment and nutrient solution, encoding its origin information within its own tissue. This eliminates the need for external tracking systems, paperwork, and manual chain-of-custody documentation, as the product carries its own authenticating signature.
Solution Approach 2:
The patent extracts the essential tracing function from complex administrative tracking systems and embeds it directly into the product itself. By transferring the source identification capability from external bureaucratic systems to the intrinsic properties of the plant material, the solution simplifies the overall system while maintaining or improving source identification reliability.
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 reliable tracing of cannabis and high-value crops by altering their isotopic composition without adding chemicals, ensuring compliance with regulations and consumer acceptance.
Implementation Method 1
leaching the rock with an organic acid or a mineral acid to create a leachate
Implementation Method 2
removing the acid from the dried leachate
Data Source
AI summary
Disclosed are methods of producing nutrient solutions having unique isotopic fingerprints; methods of producing traceable plants; and methods of identifying the source of a traceable plant that does not rely on expensive artificially separated isotopes. Plants grown with these nutrient solutions will have unique isotopic fingerprints that will be difficult or impossible to counterfeit.