Enzyme Transesterification via Electrolyte Emulsion
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Solution Overview
Problem
Current methods for producing fatty acid esters in transesterification reactions require high-speed agitation and the use of expensive buffer solutions or amphipathic substances, which increase costs and complicate the separation of by-products, while also leaving unreacted glycerides in the product.
Innovation Solution
A method involving the mixing of raw fat or oil, a liquid enzyme, and an alcohol in the presence of water and an electrolyte, where the electrolyte is added as an aqueous solution with a conductivity of 30 mS/m to 5000 mS/m, promoting emulsion formation and reaction efficiency without the need for high-speed agitation or expensive additives.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If high-speed agitation is used to form emulsion and increase reaction efficiency, then reaction efficiency is improved, but energy consumption and operational complexity increase
Solution Approach 1:
The patent introduces an amphipathic substance as an intermediary mediator that facilitates emulsion formation between the oil phase and aqueous phase. This substance acts as a bridge that reduces interfacial tension and enables efficient mass transfer without requiring high-speed mechanical agitation, thereby resolving the contradiction between reaction efficiency and energy consumption
Solution Approach 2:
The patent changes the chemical composition parameter of the reaction system by adding an amphipathic substance, which fundamentally alters the physical-chemical properties of the mixture. This parameter change enables spontaneous emulsion formation and maintains high reaction efficiency without the need for high-energy mechanical input
2Productivity
If buffer solution is added to enhance enzyme catalyst activity and improve reaction efficiency, then reaction efficiency is improved, but production cost increases
Solution Approach 1:
The patent replaces expensive buffer solutions with a cost-effective amphipathic substance that provides the necessary functional benefits. This substitution uses a cheaper material to achieve the same or better effect of maintaining enzyme activity and promoting reaction efficiency, thereby reducing production costs
Solution Approach 2:
The patent changes the chemical additive from a buffer solution to an amphipathic substance, altering the composition parameter while maintaining or improving the functional outcome. This parameter change enables cost reduction without sacrificing reaction efficiency
3Productivity
If amphipathic substance is added to promote emulsion formation and improve reaction efficiency, then reaction efficiency is improved, but separation of by-product glycerin becomes difficult
Solution Approach 1:
The patent uses a controlled, small amount of amphipathic substance (0.01-5% by weight) to achieve sufficient emulsion formation and reaction efficiency. This partial action is enough to promote the reaction but not so much as to cause severe separation difficulties, balancing the two opposing requirements
Solution Approach 2:
The patent optimizes the concentration parameter of the amphipathic substance to a specific range that provides adequate emulsion stabilization for high reaction efficiency while maintaining acceptable separability of the by-products. This parameter optimization resolves the contradiction between reaction efficiency and separation ease
4Reliability
If water is added to the reaction system in transesterification, then enzyme catalyst activity is maintained, but separation of oil layer and water layer becomes challenging
Solution Approach 1:
The amphipathic substance acts as an intermediary that facilitates the coexistence of water and oil phases while maintaining clear phase boundaries. It enables the water layer to remain in the system for enzyme activity while still allowing for relatively easy separation, resolving the contradiction between maintaining catalyst activity and ease of separation
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 method efficiently produces fatty acid esters by forming an emulsion and improving reaction efficiency, reducing the need for high-speed agitation and eliminating the requirement for costly buffer solutions or surfactants, while allowing for the repeated use of the liquid enzyme and effective separation of by-products.
Implementation Method 1
a transesterification reaction based on an enzyme-catalyzed process in which a liquid enzyme such as lipase is employed as a catalyst
Implementation Method 2
it is required to form an emulsion by agitating reactants at a high speed
Data Source
AI summary
A method for producing a fatty acid ester according to the present invention includes mixing a raw fat or oil, a liquid enzyme, and an alcohol having 1 to 8 carbon atoms in the presence of water and an electrolyte. According to the present invention, a fatty acid ester can be efficiently produced via a transesterification reaction without using any expensive buffer solution or amphipathic substance. Furthermore, in the reaction, it is not necessarily required to agitate reactants at a high speed, which makes the present invention adaptive to various production facilities and conditions.