Tricaprylin Production via Enzyme Esterification and Halide Derivatization
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Solution Overview
Problem
Conventional production methods for fatty acid polyol esters, such as medium-chain triglycerides (MCTs) like tricaprylin, result in high levels of toxic impurities and by-products due to high process temperatures and the use of metal-based catalysts, making it challenging to achieve high-purity products suitable for pharmaceutical and nutritional applications.
Innovation Solution
A process involving selective derivatization of halide-based impurities with nucleophilic agents, performing esterification at temperatures not exceeding 180°C, using glycerol or its protected form free of chlorinated species, and omitting metal-based catalysts to produce tricaprylin with high purity and minimal toxic by-products.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional production methods use high process temperatures and metal-based catalysts, then esterification efficiency is improved, but toxic impurities and by-products increase
Solution Approach 1:
The patent changes the temperature parameter from conventional high temperatures to moderate temperatures (60-180°C), and changes the catalyst from metal-based to enzyme-based (lipase), thereby maintaining esterification efficiency while eliminating toxic impurity formation
Solution Approach 2:
The patent replaces metal-based chemical catalysts with enzyme-based biological catalysts (lipase), substituting a chemical mechanism with a biological one that is inherently more selective and produces fewer harmful by-products
2Productivity
If conventional production methods are used, then production speed is maintained, but product purity decreases
Solution Approach 1:
The enzyme catalyst (lipase) performs both the esterification reaction and the purification function simultaneously by being highly selective for the desired reaction pathway, automatically preventing impurity formation without requiring additional purification steps
3Speed
If high process temperatures are applied, then reaction rate increases, but formation of toxic by-products increases
Solution Approach 1:
The patent changes the temperature parameter from high temperatures to moderate temperatures (60-180°C), and compensates for the reduced thermal energy by using enzyme catalysis, thereby maintaining adequate reaction rate while eliminating toxic by-product formation
4Power
If metal-based catalysts are used, then catalytic activity is achieved, but contamination with toxic substances occurs
Solution Approach 1:
The patent replaces metal-based chemical catalysts with enzyme-based biological catalysts (lipase), substituting a chemical mechanism with a biological one that provides sufficient catalytic activity without introducing toxic metal contamination
Solution Approach 2:
The patent uses a composite enzyme catalyst system (lipase from Candida antarctica or Rhizomucor miehei) that combines high catalytic activity with complete biocompatibility, eliminating toxic contamination while maintaining productivity
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 process efficiently produces tricaprylin with low acid and hydroxyl values, high triglyceride content, and minimal MCPD and glycidol fatty acid esters, overcoming the limitations of conventional methods and achieving high-purity grades without the need for burdensome post-treatment operations.
Implementation Method 1
a preferably selective derivatization of halide-based impurities, especially of MCPD fatty acid esters and glycidol esters of fatty acids, present in the resulting reaction product is performed and/or the resulting reaction product is treated and/or contacted with at least one nucleophilic agent
Implementation Method 2
1,2,3-propantriol of formula (I) or its protected form or precursor selected from solketal is used as starting material and is reacted and/or converted to tricaprylin
Data Source
AI summary
The present invention relates to a process for producing high-grade tricaprylin and to the tricaprylin thus prepared as well as to its respective uses and applications.