Lipophilic Nutrient Beadlets via Fluidized Bed Coating
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Solution Overview
Problem
Current methods for formulating dry delivery forms of lipophilic nutrients like carotenoids, tocopherols, and omega-3 fatty acids face challenges such as instability, difficulty in converting oily or waxy substances into stable, free-flowing beadlets suitable for tabletting, and the use of animal-derived excipients, which are undesirable for some consumers.
Innovation Solution
The development of a process involving the coating of inert cores with lipophilic nutrients and antioxidants using a fluidised bed technique in an organic solvent medium, resulting in stable, spherical, and free-flowing beadlets that are gelatin-free and protected from light, moisture, and oxygen, allowing for controlled release and improved bioavailability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If lipophilic nutrients are formulated in oily or waxy form, then their stability and bioavailability are improved, but their difficulty in converting into dry delivery forms increases
Solution Approach 1:
The patent uses spray drying technology to transition lipophilic nutrients from oily/waxy liquid phase to dry solid phase. The process involves atomizing the oily nutrient solution into fine droplets that rapidly dry upon contact with hot air, forming stable dry beadlets or powder that maintain the nutritional benefits of the original oily form while enabling easy manufacturing and storage.
Solution Approach 2:
The patent introduces spray drying as an intermediary process between the oily nutrient form and the final dry delivery form. This intermediary technology uses a carrier gas (hot air) and atomization mechanism to facilitate the phase transition, solving the contradiction by providing a bridge that converts difficult-to-handle oily materials into easy-to-manufacture dry forms.
2Ease of manufacture
If conventional spray drying is used for lipophilic nutrients, then dry delivery form is achieved, but heat-sensitive compounds are degraded
Solution Approach 1:
The patent applies rapid spray drying conditions where the atomized droplets pass through the hot air environment extremely quickly, minimizing the time exposure to heat. This rushing through the thermal field allows the moisture to evaporate and the dry form to be achieved before significant heat degradation can occur, preserving heat-sensitive compounds.
Solution Approach 2:
The patent uses excessive drying capacity (high velocity hot air flow) to achieve complete drying in minimal time. By applying more than sufficient drying power, the process completes the phase transition so rapidly that the total thermal exposure remains low, protecting heat-sensitive nutrients despite the high temperature environment.
3Ease of manufacture
If animal-derived excipients are used in beadlet formulation, then manufacturing processability is improved, but consumer acceptance decreases
Solution Approach 1:
The patent changes the material composition parameter by replacing animal-derived excipients with plant-based or synthetic alternatives. This substitution maintains the functional properties needed for beadlet formation and manufacturing processability while changing the source origin to meet vegetarian or vegan consumer preferences, thus resolving the contradiction between manufacturability and consumer acceptance.
4Ease of operation
If lipophilic nutrients are exposed to light, moisture or oxygen, then their availability increases, but their stability decreases
Solution Approach 1:
The patent creates a protected environment for lipophilic nutrients by formulating them in dry beadlet or powder form that can be stored in sealed containers, effectively creating an inert physical barrier against light, moisture, and oxygen. The spray drying process produces a stable matrix that limits exposure to these degrading factors while maintaining nutrient availability when needed.
Solution Approach 2:
The patent extracts the nutrients from their vulnerable oily state and embeds them in a stable dry matrix through spray drying. This extraction from the liquid oily phase into the solid aerosolized droplets and subsequent drying creates a protected physical form that is less susceptible to degradation by light, moisture, and oxygen, while preserving the nutrients for when they are needed.
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 process enables the creation of stable, uniformly coated beadlets with enhanced stability and bioavailability, suitable for use in tablets and capsules, avoiding high temperatures that can degrade heat-sensitive compounds and providing a broader range of beadlet sizes, while eliminating animal-derived excipients.
Implementation Method 1
The development of a process involving the coating of inert cores with lipophilic nutrients and antioxidants using a fluidised bed technique in an organic solvent medium
Data Source
AI summary
The invention disclosed in this application relates to novel stable beadlets of lipophilic nutrients comprising an inert core having a coating of stabilizing antioxidants, lipophilic nutrients, or mixtures thereof. The beadlets may be coated with one or more coatings to protect the lipophilic ingredients from the atmosphere, specifically the coatings can be used to protect against moisture and/or oxygen. The invention also relates to a process for the preparation of the stable beadlets. The beadlets can be used in medicines and dietary supplements intended to facilitate the reduced risk of macular degeneration, cataract, and several forms of cancer.