Dried Plant Extract Aerosol Compositions for Flavor and Nicotine Stability
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Solution Overview
Problem
Conventional aerosol-generating materials for non-combustible systems face issues with flavor and nicotine loss over time, instability due to high moisture content, and the need for high energy consumption to release desired components, limiting their shelf life and authenticity of tobacco taste.
Innovation Solution
Aerosol-generating compositions comprising a solid material formed by drying a flavor- and/or active-containing plant extract suspended or dissolved in a liquid aerosol-generating material, with a moisture content of 0 to 10%, enhancing stability and concentration of flavors and actives.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional liquid aerosol-generating materials are used, then the system can operate, but flavor and nicotine are lost over time and stability decreases due to high moisture content
Solution Approach 1:
The patent changes the physical state of the extract from liquid to solid by drying it to low moisture content (0-10%, preferably 2-5%). This parameter change stabilizes the flavor and nicotine components, preventing degradation and loss over time while maintaining release capability during aerosol generation
Solution Approach 2:
The patent creates a composite aerosol-generating material combining solid dried extract particles with liquid aerosol-forming components. This composite structure allows the solid extract to provide stable flavor and nicotine reservoirs while the liquid component enables aerosol formation, resolving the contradiction between stability and functionality
2Quantity of substance
If high concentrations of flavors and actives are used, then authentic taste is achieved, but energy consumption increases to release these components
Solution Approach 1:
The patent changes the physical form to solid dried extract, which has higher surface area to volume ratio compared to liquid equivalents. This allows more efficient heat transfer and faster release of flavor and nicotine components at lower energy input, resolving the contradiction between concentration and energy consumption
3Duration of action of moving object
If liquid extract is used in aerosol-generating material, then the system functions, but shelf life is limited due to moisture content
Solution Approach 1:
The patent applies drying to reduce moisture content from typical liquid levels (>80%) to low levels (0-10%, preferably 2-5%). This parameter change fundamentally improves both shelf life and compositional stability by preventing microbial growth, chemical degradation, and physical changes associated with high moisture content
Solution Approach 2:
The patent performs preliminary drying of the extract before incorporating it into the aerosol-generating material. This preliminary action removes moisture that would otherwise cause instability and short shelf life, allowing the final product to maintain stability throughout its intended lifecycle
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 compositions provide an authentic tobacco taste, increased shelf life, and reduced energy consumption by maintaining high concentrations of flavors and actives, making them suitable for non-combustible aerosol provision systems.
Implementation Method 1
the solid aerosol-generating material is formed by drying a precursor composition comprising an extract from a flavour- and/or active-containing plant material
Implementation Method 2
Some such systems include a liquid which is vaporised by heating to produce an inhalable vapour or aerosol
Data Source
AI summary
The invention relates to an aerosol-generating composition comprising a solid aerosol-generating material comprising a dried extract from a flavour- and/or active-containing plant material suspended or dissolved in a liquid aerosol-generating material. The aerosol-generating composition may be used to generate an aerosol. For example, the aerosol-generating composition may be used in non-combustible aerosol-provision systems. The invention also relates to aerosol-provision systems comprising the aerosol-generating composition, and methods of providing the aerosol-generating composition.