Interesterified Structured Lipids Stabilize Conjugated Linoleic Acid
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Solution Overview
Problem
Conjugated linoleic acid (CLA) is highly susceptible to oxidation when exposed to heat or light, making it challenging to incorporate into manufactured food products without causing rancidity.
Innovation Solution
The development of structured lipids through interesterification of medium chain triglycerides, long chain domestic oils, and conjugated linoleic acid, optionally combined with phytosterol esters, which stabilizes CLA and enhances its compatibility and shelf stability in edible oil compositions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conjugated linoleic acid is incorporated into manufactured food products, then health benefits including lean body mass production and fat reduction are improved, but oxidation susceptibility increases causing rancidity
Solution Approach 1:
The patent uses an intermediary substance (antioxidant, stabilizer, or encapsulating agent) to protect CLA from direct contact with oxygen and other oxidizing agents. This mediator absorbs or neutralizes the harmful oxidative effects while allowing CLA to maintain its health benefits, thereby resolving the contradiction between reliability and oxidation susceptibility.
Solution Approach 2:
The patent creates an inert environment for CLA by using packaging materials or processing conditions that exclude oxygen and other reactive gases. This inert atmosphere prevents oxidation while preserving the health benefits of CLA, effectively resolving the technical contradiction between reliability and oxidation susceptibility.
2Ease of manufacture
If CLA is exposed to heat or light, then oxidation occurs turning the fat rancid, but heat and light exposure is necessary for food processing and storage
Solution Approach 1:
The patent applies preliminary protective measures to CLA before it is exposed to heat or light during food processing and storage. This may include pre-encapsulation, pre-addition of antioxidants, or pre-modification of the fat matrix to create a protective environment. This preliminary action prevents oxidation while allowing necessary heat and light exposure for manufacturing.
Solution Approach 2:
The patent provides beforehand cushioning by incorporating protective agents or creating protective structures around CLA molecules before they are exposed to harmful heat or light. This cushioning layer absorbs or dissipates the harmful energy while protecting CLA from oxidation, enabling safe food processing and storage.
3Stability of the object's composition
If interesterification is used to stabilize CLA, then shelf stability and functionality are improved, but the complexity of the manufacturing process increases
Solution Approach 1:
The patent applies interesterification to change the chemical parameters of CLA, specifically rearranging the fatty acid chains to create a more stable molecular structure. This parameter change in the molecular arrangement increases shelf stability and functionality while the process, though complex, achieves the desired stability improvement.
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 interesterified structured lipids provide a stable form of CLA that maintains its health benefits, including improved nutritional and metabolic advantages, while offering enhanced stability and functionality in food products, such as baking and frying applications.
Implementation Method 1
Interesterification is a known reaction of triacylglycerol structures whereby individual fatty acid structures at positions of the triglyceride being interesterified are interchanged on the glycerol moiety.
Data Source
AI summary
A novel oil composition comprises an interesterified structured lipid component, the component being an interesterifcation reaction product of an amount of a medium chain triglyceride, an amount of a long chain domestic oil, and an amount of a conjugated linoleic acid material. The structured lipid component can be used in edible oil compositions. The oil compositions advantageously can contain an amount of a phytosterol ester component, up to about 12 weight percent of the total composition. The oil compositions disclosed herein have good stability and also have other properties useful for an edible oil composition.