Solvent-Free THCA Extraction via Mechanical Extrusion
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Solution Overview
Problem
Existing cannabis extraction methods often require extreme conditions or solvents, which can damage terpenes and cannabinoids, and fail to utilize the therapeutic potential of cannabis seeds, leading to inefficient and unreliable production of medicinal products.
Innovation Solution
A solvent-free extraction process using mechanical extrusion with natural oils like flax seed or hemp seed oil to preserve terpenoids and cannabinoids, combining cannabis flowers and seeds to produce high-yield, dose-specific cannabis oil derivatives, protein powders, and pastes that retain THCA, CBDA, and other therapeutic compounds.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If solvent-free mechanical extrusion is used, then terpenoids and cannabinoids are preserved, but extraction efficiency and yield may be reduced
Solution Approach 1:
The patent applies parameter changes by precisely controlling temperature (maintaining below decarboxylation thresholds), pressure (using mechanical extrusion pressure), and time (controlled extraction duration) to preserve thermally sensitive terpenoids and cannabinoids while achieving effective extraction. This resolves the contradiction by optimizing parameters to simultaneously maintain compound integrity and extraction efficiency.
Solution Approach 2:
The patent uses food-grade carriers and natural oils as intermediaries to facilitate the extraction and delivery of THCA and other cannabinoids without direct solvent contact. These intermediaries enable efficient extraction while preserving the integrity of sensitive compounds, thus resolving the contradiction between preservation and efficiency.
2Productivity
If traditional solvent extraction is used, then extraction efficiency is high, but terpenes and cannabinoids are damaged and waste streams are created
Solution Approach 1:
The patent replaces chemical solvent-based extraction systems with mechanical extrusion systems. This substitution eliminates solvent contact that damages terpenes and cannabinoids, while the mechanical force applied through extrusion maintains high extraction efficiency. The mechanical system achieves both preservation and productivity simultaneously.
Solution Approach 2:
The patent converts the typically harmful effect of heat (which damages terpenes) into a beneficial controlled parameter by using minimal, controlled heating that preserves compounds while still enabling extraction. The process transforms potential damage into controlled, beneficial thermal processing.
3Stability of the object's composition
If cannabis seeds are excluded from processing, then flower quality is maintained, but therapeutic potential is reduced and waste increases
Solution Approach 1:
The patent merges cannabis flowers and seeds into a unified processing system where both components contribute their unique therapeutic compounds. Flowers provide cannabinoids while seeds contribute nutritional compounds and additional therapeutics. This merging increases overall therapeutic potential and versatility without compromising flower quality, as both materials are processed together through the same extrusion system.
Solution Approach 2:
The patent creates a multi-functional processing system that simultaneously extracts cannabinoids from flowers, nutritional compounds from seeds, and produces multiple product forms (oils, pastes, powders). This universal approach maximizes therapeutic potential and reduces waste by utilizing all parts of the cannabis plant for multiple purposes.
4Quantity of substance
If decarboxylation is applied, then THC availability increases, but THCA and other cannabinoid acids are lost
Solution Approach 1:
The patent performs extraction and preservation of THCA and cannabinoid acids as preliminary actions before any decarboxylation occurs. By maintaining compounds in their acidic forms during extraction and initial processing, the system preserves the full spectrum of cannabinoids. Decarboxylation is then applied selectively and controllably to convert specific portions to THC, allowing both forms to coexist in the final product.
Solution Approach 2:
The patent employs dynamic control of the decarboxylation process, allowing flexible adjustment between preserving cannabinoid acids and converting them to active THC forms. This dynamic approach enables the system to adapt to different product requirements, maintaining both THCA and THC availability rather than forcing a static choice between the two forms.
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 method preserves terpenoids and cannabinoids, produces consistent, high-quality medicinal products with quantifiable THC, CBD, and terpenes, and creates versatile edible and topical applications, ensuring safe and effective oral delivery of therapeutic compounds while minimizing waste and environmental impact.
Implementation Method 1
A solvent-free extraction process using mechanical extrusion with natural oils like flax seed or hemp seed oil
Implementation Method 2
optionally, heating the blend during the milling
Implementation Method 3
combining said source of THCA-containing cannabis and said source of natural oil into a blend; milling said blend
Data Source
Figure 1
Figure 2a~2c
Figure 3
AI summary
A solvent-free method to extract THCA from cannabis, said method comprising: providing a source of THCA-containing cannabis plant; providing a source of natural oil; combining said source of THCA-containing cannabis and said source of natural oil into a blend; milling said blend; optionally, heating the blend during the milling; and extracting a THCA-containing liquid generated during the milling.