Vegetable Oil Stabilization with Natural Antioxidant Mixture
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Solution Overview
Problem
Existing food compositions containing vegetable oils with mono- or poly-unsaturated fatty acids face challenges in oxidative degradation, leading to undesirable flavors and textures, with EDTA being an effective but chemically perceived solution that consumers seek to avoid.
Innovation Solution
A mixture comprising monocyclic monoterpenes, benzoic acid derivatives, 3-phenylpropenoic acid derivatives, tartaric acid, citric acid, glucose, fructose, and other natural compounds is used to reduce the oxidation rate of vegetable oils, providing stabilization and anti-autoxidative effects without the negative perception of chemical additives.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If EDTA is used to reduce oxidation of vegetable oil, then oxidation stability is improved, but consumer acceptance deteriorates due to chemical perception
Solution Approach 1:
The patent introduces plant-derived compounds (polyphenols, terpenes, organic acids) as intermediary substances that naturally chelate metal ions and scavenge free radicals, replacing synthetic EDTA while maintaining oxidation protection. These natural compounds act as mediators between the vegetable oil and environmental oxidants, providing the same protective function without the negative consumer perception of chemical additives.
Solution Approach 2:
The patent changes the chemical parameters of the stabilizing agent from synthetic (EDTA) to natural plant-derived compounds. Specifically, it uses polyphenols with ORAC values ≥200 μmol TE/g, terpenes with specific oxygen radical absorption capacities, and organic acids (citric, malic, tartaric acid) to alter the chemical composition while maintaining the metal chelating and antioxidant functions required for oxidation stability.
2Object-affected harmful factors
If natural stabilizing compounds are used instead of EDTA, then consumer acceptance is improved, but oxidation protection effectiveness may deteriorate
Solution Approach 1:
The patent creates a composite antioxidant system combining multiple plant-derived compounds: polyphenols (for free radical scavenging and metal chelation), terpenes (for additional antioxidant activity and flavor enhancement), and organic acids (for metal chelation and pH control). This composite approach synergistically enhances oxidation protection effectiveness while maintaining natural composition and consumer acceptance, overcoming the limitation of single natural compounds.
Solution Approach 2:
The patent selects plant-derived compounds that perform multiple functions simultaneously: polyphenols provide both free radical scavenging and metal chelation, organic acids provide metal chelation and pH buffering, and terpenes provide antioxidant activity and sensory enhancement. This multi-functionality ensures comprehensive oxidation protection while using natural compounds that consumers accept, matching or exceeding EDTA's effectiveness.
3Quantity of substance
If vegetable oil with high unsaturated fatty acid content is used, then nutritional value is improved, but susceptibility to oxidation increases
Solution Approach 1:
The patent applies preliminary anti-action by incorporating plant-derived antioxidants (polyphenols, terpenes, organic acids) into the food composition before oxidation can occur. These compounds are pre-positioned to chelate metal ions and scavenge free radicals that would otherwise initiate oxidation of the unsaturated fatty acids, providing proactive protection that allows high unsaturated fat content without compromising stability.
Solution Approach 2:
The patent converts the harmful effect of metal ions and free radicals (which promote oxidation) into beneficial effects by using natural compounds to chelate metals and scavenge radicals. The same metal ions that would catalyze oxidation are instead bound by organic acids and polyphenols, transforming them from harmful catalysts into harmless complexes, while the unsaturated fatty acids retain their nutritional benefits.
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 mixture effectively decelerates oxidation processes, enhancing the sensorial durability and stability of food products, allowing for reduced EDTA usage and broader applicability in various food preparations while maintaining flavor and texture quality.
Implementation Method 1
EDTA is very effective, however it is also perceived by the consumer to be chemical. As consumers strive to eat natural food products, there is a strive among food producers to remove compounds which are considered to be chemical from food products.
Implementation Method 2
Generally vegetable oils that are used in food compositions contain mono-unsaturated or poly-unsaturated fatty acids. In particular the double bonds in these fatty acids leads to sensitivity for oxidation.
Implementation Method 3
WO 2013/189709 A1 relates to a method of production of an EDTA-free mayonnaise by means of using a combination of reduced grape juice, acetic acid and proteins
Data Source
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AI summary
The present invention relates to food products containing vegetable oils which are sensitive for oxidation, leading to rancidity and unattractive food products for consumers. Objective of the invention is to reduce the oxidation, without using EDTA. The oxidation has been reduced using a mixture of compounds than can be obtained from natural sources. This reduced oxidation of fatty acids has been shown in low-fat mayonnaise, salad dressing, and margarine.