Beta Acid Mite Control Formulation with Thixotropic Excipients
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Solution Overview
Problem
Conventional honey bee parasitic mite infestation treatments face issues with beta acid oxidation, leading to reduced effectiveness and shorter duration of action due to exposure to oxygen, which causes rapid degradation of hop beta acids in existing formulations.
Innovation Solution
The use of excipients such as fumed silica and antioxidants like ascorbic acid, combined with thixotropic materials, to create formulations that retard beta acid oxidation and prolong the availability of active ingredients in honey bee treatments, including delivery vehicles like strips, pastes, and powders, which maintain wetness and biological activity for at least 14 days.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If beta acids are applied in conventional formulations, then mite control effectiveness is achieved, but rapid oxidation degradation occurs reducing duration of action
Solution Approach 1:
The patent introduces oxygen barrier excipients (such as waxes, oils, and polymers) as intermediary substances between the beta acids and atmospheric oxygen. These excipients form protective layers that mediate the interaction, preventing direct contact between oxygen and beta acids, thereby slowing oxidation while maintaining sustained release of active ingredient over 14+ days
Solution Approach 2:
The patent creates composite formulation systems combining beta acids with multiple excipients including oxygen barriers, thixotropic agents, and controlled-release materials. This composite approach allows simultaneous achievement of oxidation protection and extended duration of action through the synergistic properties of different material components
2Duration of action of moving object
If beta acids are exposed to oxygen for sustained release, then availability for bee uptake is prolonged, but oxidative degradation increases
Solution Approach 1:
The patent creates a localized inert environment around beta acid particles using excipients that form oxygen-impermeable matrices or coatings. This inert environment protects the beta acids from atmospheric oxygen while still allowing controlled diffusion of active ingredient to bees over extended periods
Solution Approach 2:
The patent employs thin film excipients that form flexible protective barriers around beta acid-containing matrices. These films provide oxygen protection while allowing gradual permeation of active ingredient, extending availability without exposing beta acids to degrading oxygen levels
3Productivity
If thin beta acid layers are used on delivery vehicles, then bee uptake efficiency is improved, but surface area exposure to oxygen increases causing faster degradation
Solution Approach 1:
The patent utilizes porous excipient materials that provide high surface area for beta acid loading while the porous structure itself acts as a diffusion barrier to oxygen. The porosity allows bee access to active ingredient while the material matrix protects against oxidation
Solution Approach 2:
The patent implements nested structures where beta acid particles are embedded within excipient matrices that are themselves coated with protective excipient layers. This nested arrangement protects beta acids from oxygen while maintaining accessibility for bee uptake
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 described formulations significantly reduce oxidative degradation of beta acids, maintaining their effectiveness and availability for bee uptake over a longer period, reducing drip loss, bee agitation, and improving convenience for beekeepers by forming protective layers that prevent rapid oxidation and moisture loss.
Implementation Method 1
Thixotropic materials such as fumed silica, microparticles of alumina, aluminum nitride, carbon black, nanocarbons, could be used to form layers of formulation on delivery vehicles such as strip, gel, paste, patty or powder, to protect beta acid from oxidative degradation
Implementation Method 2
Beta acids (lupulone, colupulone, and adlupulone) in hops have isoprenyl chain that is sensitive to autoxidation resulting in oxidation product hulupones
Implementation Method 3
Natural antioxidants such as vitamin C (ascorbic acid), vitamin A, tocopherols, carotenoids, lutein, lycopene, polyphenols like flavonoids or synthetic antioxidants such as propyl gallate, tertiary butylhydroquinone, butylated hydroxyanisole, butylated hydroxytoluene could be used to prevent oxidation of hop beta acids
Implementation Method 4
Compositions of the present invention provide effective control, treatment, or prevention of honey bee parasitic mite infestations by inclusion of, for example, certain excipients that retard beta acid oxidation, prolong availability of active ingredient for bee uptake
Data Source
AI summary
The present invention relates to a formula or composition for use in reducing a honey bee parasitic mite infestation that may comprise, for example, a liquid, solid, or paste composition, comprising about 5-20% beta acids (about 5-75% by weight), about 5-75% by weight propylene glycol, about 5-75% by weight polysorbate 60, about 0.5-35% of a thixotropic material comprising, for example, fumed silica, and/or about 0.5-5% of an antioxidant comprising, for example, ascorbic acid, the composition is active against parasitic mites for more than about 14 days in the bee hives. Compositions of the present invention provide effective control, treatment, or prevention of honey bee parasitic mite infestation by inclusion of, for example, certain excipients that retard beta acid oxidation, prolong availability of active ingredient for bee uptake, improve convenience for beekeepers, or both retard beta acid oxidation and prolong the availability of active ingredient for bee uptake.