Phospholipid Liposomal Dispersion for Omega-3 Bioavailability
Solution Overview
Problem
The bioavailability of omega-3 fatty acids, particularly when consumed as supplements or used in cell culture media, is limited due to low solubilization and enzymatic hydrolysis in the digestive system, and existing formulations often require non-ionic synthetic surfactants and antioxidants, which are not sustainably sourced.
Innovation Solution
The use of phospholipids combined with omega-3 fatty acid salts having basic amino acids as counter ions, formulated into liposomal dispersions, which enhance bioavailability by mimicking natural digestive processes and reducing the need for synthetic surfactants.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If self-emulsifying oil formulations containing non-ionic synthetic surfactants are used to increase dispersion in the stomach, then bioavailability is improved, but the formulations require unsustainable synthetic surfactants and cosurfactants that are less consumer-accepted
Solution Approach 1:
The patent uses phospholipids as a natural intermediary substance that performs the emulsification function previously achieved by synthetic surfactants. Phospholipids are biocompatible, sustainably sourced from natural materials, and effectively increase dispersion of omega-3 fatty acids in the stomach, thereby improving bioavailability without the negative consumer perception associated with synthetic surfactants.
Solution Approach 2:
The patent changes the chemical composition parameters of the formulation by replacing synthetic surfactant molecules with phospholipid molecules. This parameter change maintains the emulsification functionality while improving the sustainability and consumer acceptance profile of the product.
2Stability of the object's composition
If self-emulsifying oil formulations are used to generate fine oil droplets after dispersion in water, then dispersion is improved, but high amounts of surfactant and cosurfactant relative to the oil are required
Solution Approach 1:
Phospholipids serve as a dual-function intermediary that both emulsifies the omega-3 fatty acids and provides structural stability to the formulation. The amphiphilic nature of phospholipids allows them to effectively reduce surface tension and stabilize fine oil droplets with much lower quantities compared to conventional synthetic surfactant systems.
Solution Approach 2:
Phospholipids perform multiple functions simultaneously: they act as emulsifiers to create fine dispersion, provide structural stability to the oil droplets, and offer antioxidant properties. This multi-functionality reduces the need for additional separate ingredients that would be required in conventional formulations.
3Reliability
If phospholipid based liposomal formulations are prepared from omega-3 free fatty acids, then bioavailability is improved, but neutralization of free fatty acids complicates processing and introduces undesired inorganic counterions
Solution Approach 1:
Instead of starting with free fatty acids that require neutralization (the conventional approach), the patent inverts the approach by using triglycerides as the starting material. Triglycerides do not require neutralization and can be directly incorporated into phospholipid-based formulations, simplifying processing while maintaining improved bioavailability through phospholipid association.
Solution Approach 2:
The patent extracts or removes the problematic neutralization step from the manufacturing process. By selecting triglycerides instead of free fatty acids as the starting material, the need for base neutralization and the subsequent introduction of inorganic counterions is completely eliminated, streamlining the manufacturing process.
4Reliability
If omega-3 triglycerides and ethyl esters are dispersed in liposome bilayers, then bioavailability is improved, but only low amounts can be stably dispersed due to low polarity
Solution Approach 1:
Phospholipids act as an intermediary that bridges the polarity gap between the hydrophobic omega-3 triglycerides/ethyl esters and the aqueous environment. The phospholipid bilayer structure provides a hydrophobic core that can accommodate the low-polarity omega-3 molecules while maintaining stability, thereby increasing the quantity that can be effectively dispersed and delivered.
Solution Approach 2:
The patent creates a composite liposomal system combining phospholipids with omega-3 triglycerides and ethyl esters. This composite structure leverages the amphiphilic properties of phospholipids to stabilize higher concentrations of hydrophobic omega-3 molecules within the bilayer, overcoming the limitation of low polarity and enabling greater stable dispersion.
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 formulations improve the bioavailability of omega-3 fatty acids for human and animal cells, reduce the content of undesired inorganic counterions, facilitate sterile filtration, and result in better-quality, more stable dry powders.
Implementation Method 1
phospholipids combined with omega-3 fatty acid salts having basic amino acids as counter ions, formulated into liposomal dispersions
Implementation Method 2
Phospholipids, such as phosphatidylcholine (lecithin), are natural amphiphiles
Implementation Method 3
Phospholipids, such as phosphatidylcholine (lecithin), are natural amphiphiles and food ingredients that are highly biocompatible and easily digestible. They have been used as emulsifiers in the food industry
Implementation Method 4
compositions comprising salts of omega-3 fatty acids, such as DHA, with basic amino acids, such as arginine and lysine have favorable therapeutic and technological characteristics
Implementation Method 5
compositions comprising polyunsaturated omega-3 fatty acid salts that can be stabilized against oxidation
Data Source
AI summary
The invention relates to preparations comprising a mixture of at least one phospholipid, and at least one fatty acid salt of a cation with an anion derived from a fatty acid. The invention further relates to a method for preparing such preparations and the use of such preparations to provide polyunsaturated fatty acids to cells, tissues, organs or organisms, for example in the field of cell and tissue culture, organ preservation, human or animal nutrition, or cosmetics.