Phosphatidylserine Purification Using Bivalent Metal Oxides
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Solution Overview
Problem
Current methods for producing and purifying phosphatidylserine (PS) face challenges such as high solvent requirements, costly production, and lower yields, particularly when using calcium salts in enzymatic conversion processes.
Innovation Solution
The use of bivalent metal oxides (BMO) in enzymatic transphosphatidylation reactions, which modify the reaction substrate and increase the conversion of phosphatidylcholine to PS, allowing for higher yields and more efficient purification in various solvents and media, including hydroalcoholic and aprotic mediums.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If calcium salts are used in enzymatic conversion processes, then the conversion of phosphatidylcholine to phosphatidylserine can be achieved, but the yield is lower and production costs are higher
Solution Approach 1:
The patent changes the chemical parameter of the reaction medium by using bivalent metal oxides (such as calcium oxide, magnesium oxide, zinc oxide) instead of calcium salts. This parameter change fundamentally alters the reaction conditions, leading to significantly improved conversion yields (up to 90%) and reduced production costs. The metal oxides modify the reaction substrate and enhance the enzymatic transphosphatidylation efficiency.
Solution Approach 2:
The patent employs bivalent metal oxides as a cost-effective alternative to expensive calcium salts and organic solvent systems. These metal oxides are inexpensive, readily available materials that can be easily removed from the reaction mixture, making the process economically viable while achieving high yields.
2Manufacturing precision
If organic solvents are used for extraction and purification, then phosphatidylserine can be separated from the reaction mixture, but large quantities of solvent are required and elimination is difficult
Solution Approach 1:
The patent extracts phosphatidylserine from the reaction mixture using water-miscible solvents (such as alcohols, ketones, or esters) instead of traditional organic solvents. These solvents can be easily removed by evaporation or dialysis, eliminating the difficulty of solvent elimination while achieving high purity product. The extraction process selectively separates PS from other reaction components.
Solution Approach 2:
The patent uses water-miscible solvents as intermediary substances that facilitate the extraction and purification of phosphatidylserine. These intermediary solvents bridge the aqueous reaction medium and the phospholipid product, enabling efficient separation while being easily removable without contaminating the final product.
3Adaptability or versatility
If detergent/surfactant is used to disperse phospholipid in micellar form, then enzymatic reaction can occur in aqueous medium, but the process requires specific concentrations and conditions
Solution Approach 1:
The patent replaces detergent/surfactant systems with bivalent metal oxides, which are simpler, cheaper, and easier to manage. The metal oxides do not require precise concentration control or special handling conditions, thereby reducing process complexity while maintaining the ability to conduct enzymatic reactions in aqueous medium.
Solution Approach 2:
The patent changes the fundamental parameter of the reaction system by eliminating the need for detergent/surfactant micellar structures. Instead, bivalent metal oxides create a different microenvironment that enables enzymatic activity in aqueous solution without requiring complex surfactant systems, thereby simplifying the overall process.
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 approach significantly enhances the yield of PS production, achieving up to 90% conversion with reduced solvent usage and lower production costs, compared to methods using calcium salts, while maintaining high purity and efficiency.
Implementation Method 1
The use of bivalent metal oxides (BMO) in enzymatic transphosphatidylation reactions, which modify the reaction substrate and increase the conversion of phosphatidylcholine to PS
Implementation Method 2
The enzymatic conversion of phosphatidylcholine (PC) into PS by a transphosphatidylation reaction catalysed by the enzyme phospholipase D (PLD)
Implementation Method 3
BMO drastically modifies the reaction substrate represented by the starting phosphatidylcholine, determining a change such that the action of enzyme PLD significantly increases in terms of final yield in PS
Implementation Method 4
with subsequent purification brought about mainly by extracting the PS with organic solvents
Implementation Method 5
the PS, which has been deposited in the upper part of the reaction medium, is then isolated by separating and eliminating the subnatant
Data Source
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AI summary
The invention discloses advantageous processes for the separation and purification of phosphatidylserine (PS) from serine, PC and PLD remaining in a medium in which a transphosphatidylation reaction has taken place.