Triglyceride Process for Human Milk Fat Mimicry
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Solution Overview
Problem
Current processes for producing 1,3-dioleoyl-2-palmitoyl glyceride (OPO) are inefficient, and there is a need to closely match the chemical and physical properties of triglyceride fats or oils from natural sources to human milk fat, which requires precise control of fatty acid distribution on glyceride positions.
Innovation Solution
A process involving alcoholysis of a triglyceride with at least 40% oleic acid residues, followed by reaction with a saturated fatty acid acylating agent and separation of acyl esters, using 1,3-specific lipases to selectively introduce fatty acids into the 1- and 3-positions, and then reacting with a second glyceride to form 1,3-dioleoyl-2-palmitoyl glyceride, while minimizing changes to the 2-position fatty acids.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional enzymatic processes using lipases are used to produce 1,3-dioleoyl-2-palmitoyl glyceride, then the process can introduce unsaturated fatty acids into the 1- and 3-positions, but the production efficiency is low and the process is time-consuming
Solution Approach 1:
The patent changes the chemical parameters of the reaction system by using chemical catalysts (acid or base catalysts) instead of enzymatic catalysts, and by controlling the alcohol-to-triglyceride molar ratio and reaction temperature, thereby significantly improving the reaction rate and production efficiency while reducing process time
Solution Approach 2:
The patent substitutes the biological enzymatic system with a chemical catalysis system, replacing the slow and specific enzymatic reaction with a faster chemical reaction mechanism that achieves the same goal of introducing fatty acids at specific positions more efficiently
2Quantity of substance
If vegetable oils are used to create milk replacement fats with similar fatty acid composition, then the fatty acid content can match human milk fat, but the distribution of fatty acids on glyceride positions cannot be controlled to match human milk fat
Solution Approach 1:
The patent applies local quality by selectively placing specific fatty acids at specific positions on the glyceride backbone. Through controlled alcoholysis and transesterification reactions, the patent ensures that saturated fatty acids occupy the 2-position while unsaturated fatty acids occupy the 1- and 3-positions, creating a non-uniform distribution that matches human milk fat characteristics
Solution Approach 2:
The patent uses preliminary action by first performing alcoholysis to create 2-monoglycerides with specific fatty acid positioning, then using these as intermediates in subsequent transesterification reactions. This stepwise approach with preliminary positioning ensures the final product has the desired fatty acid distribution pattern
3Manufacturing precision
If a multi-step process with separation steps is used to produce OPO, then the purity of the product can be improved, but the process complexity and time consumption increase
Solution Approach 1:
The patent merges multiple reaction steps into a integrated process flow where alcoholysis and transesterification are performed in sequence without complete isolation of intermediates. The acyl esters produced in the first step are directly utilized in the second step, reducing the need for separate purification operations between steps while maintaining final product purity
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 efficiently produces OPO with a by-product useful in other triglyceride manufacturing, achieving a high yield of 1,3-dioleoyl-2-palmitoyl glyceride and 1,3-saturated fatty acid acyl 2-oleoyl glyceride, closely mimicking human milk fat composition.
Implementation Method 1
subjecting a first triglyceride comprising at least 40% by moles of oleic acid residues to an alcoholysis reaction with an alcohol having from 1 to 6 carbon atoms to obtain a composition comprising 2-oleoyl monoglyceride and at least one acyl ester of said alcohol
Implementation Method 2
reacting the 2-oleoyl monoglyceride with an acylating agent comprising at least one C12 to C24 saturated fatty acid, at least one ester of said fatty acid or a mixture thereof to obtain a 1,3-saturated fatty acid acyl 2-oleoyl glyceride
Data Source
AI summary
A process for producing triglycerides which comprises: (a) subjecting a first triglyceride comprising at least 40% by moles of oleic acid residues, based on total acyl groups in the triglyceride, to an alcoholysis reaction with an alcohol having from 1 to 6 carbon atoms to obtain a composition comprising 2-oleoyl monoglyceride and at least one acyl ester of said alcohol; (b) reacting the 2-oleoyl monoglyceride with an acylating agent comprising at least one C12 to C24 saturated fatty acid, at least one ester of said fatty acid or a mixture thereof, to obtain a 1,3-saturated fatty acid acyl 2-oleoyl glyceride; and (c) separating at least a part of the at least one acyl ester after or during step (a) or step (b); (d) reacting the acyl ester with a second glyceride to form 1,3-dioleoyl 2-palmitoyl glyceride.