Inert-Gas Slurry Processing for Stable High-CBD Plant Material

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Solution Overview

Problem

Current methods for cannabinoid extraction from wet-harvested plants, such as hemp and cannabis, result in significant loss of cannabinoid content due to high-temperature drying and oxidation, leading to reduced potency and stability of the final product.

Innovation Solution

A method involving the creation of a slurry from plant material, pressurization with an inert gas, and decarboxylation under controlled conditions to convert acid-form cannabinoids to neutral-form cannabinoids, followed by drying in a refractance window dryer to stabilize the product.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If high-temperature drying is used to prevent mold and degradation, then plant material stability is improved, but cannabinoid content decreases

Engineering Contradiction:

Improveplant material stabilityVSAvoidcannabinoid content

Core Design Contradiction:

Stability of the object's compositionVSQuantity of substance

Solution Approach 1:

The patent changes the drying parameters by using lower temperatures (below 100°C) and extends the drying time, transforming the traditional high-temperature quick-drying process into a low-temperature slow-drying process that preserves cannabinoids while achieving stability

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent uses a composite drying approach combining refractance window technology with controlled air circulation, creating a multi-functional drying system that provides both heat transfer and moisture removal while maintaining gentle temperature conditions

Inventive Principle:

Principle #40Composite materials

2Quantity of substance

If wet harvesting is used to preserve plant material, then plant material quality is improved, but mold degradation increases

Engineering Contradiction:

Improveplant material qualityVSAvoidmold degradation

Core Design Contradiction:

Quantity of substanceVSObject-affected harmful factors

Solution Approach 1:

The patent applies preliminary low-temperature drying treatment to wet-harvested plant material to reduce moisture content below mold-growth thresholds while preserving cannabinoids, preventing mold degradation before it can occur

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent employs inert gas atmospheres (nitrogen or carbon dioxide) during drying and storage to displace oxygen, creating an environment that prevents both mold growth and oxidative degradation of cannabinoids

Inventive Principle:

Principle #39Inert atmosphere (Inert environment)

3Device complexity

If direct sunlight drying is used for simplicity, then processing complexity is reduced, but cannabinoid concentration decreases

Engineering Contradiction:

Improveprocessing complexityVSAvoidcannabinoid concentration

Core Design Contradiction:

Device complexityVSQuantity of substance

Solution Approach 1:

The patent replaces the natural sunlight drying mechanism with a controlled artificial drying system using refractance window panels and forced air circulation, substituting unpredictable environmental factors with controllable mechanical processes

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

4Productivity

If traditional drying methods are used to reduce processing time, then productivity is improved, but product potency decreases

Engineering Contradiction:

Improveprocessing timeVSAvoidproduct potency

Core Design Contradiction:

ProductivityVSQuantity of substance

Solution Approach 1:

The patent optimizes drying parameters including temperature (maintained below 100°C), humidity control, and air circulation velocity to achieve efficient moisture removal without compromising cannabinoid potency, balancing productivity and product quality

Inventive Principle:

Principle #35Parameter changes

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 method achieves a final product with significantly higher cannabinoid concentrations, maintaining stability at room temperature for extended periods without refrigeration, and reduces evaporation and oxidation losses.

Implementation Method 1

decarboxylation under controlled conditions to convert acid-form cannabinoids to neutral-form cannabinoids

Methodology Applied

Scientific EffectDecarboxylation:

Implementation Method 2

drying in a refractance window dryer to stabilize the product

Methodology Applied

Scientific EffectEvaporation: Evaporation

Data Source

PatentUS20260022408A1Systems and methods for processing and stabilizing plant materials

Publication Date: 2026.01.22 E & J GALLO WINERY

AI summary

Systems and methods are described for processing a plant material, such as cannabis and/or hemp. An example method includes: providing a slurry of plant material; providing an inert gas; adding the slurry and the inert gas to a tank; applying heat and pressure to the slurry inside the tank to generate a processed plant material; removing the processed plant material from the tank; and drying the processed plant material in a dryer to produce a dried product comprising cannabidiol (CBD).