O/W Emulsion Process Using Fruit Vinegars for Oil Oxidation Control
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Solution Overview
Problem
Vegetable oils in food products are prone to oxidation during storage, leading to rancidity, and existing technologies like EDTA, while effective, are perceived as artificial and difficult to replace with natural alternatives that do not alter taste or color and are industrially efficient.
Innovation Solution
A process for creating an oil-in-water emulsion using a specific blend of organic acids, amino acids, and phenolic compounds from non-grape vinegars, with controlled ratios and concentrations, and high-shear emulsification to form small oil droplets, reducing oxidation and maintaining product quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If EDTA is used as an antioxidant, then oxidation prevention is effective, but the ingredient is perceived as artificial and chemical by consumers
Solution Approach 1:
The patent changes the chemical composition parameters by replacing EDTA with a natural antioxidant system comprising phenolic compounds (0.001-0.5% w/w), ascorbic acid (0.01-0.1% w/w), and organic acids. This parameter substitution maintains oxidation prevention effectiveness while achieving consumer acceptance of natural ingredients.
Solution Approach 2:
The patent uses common food ingredients (vinegar, citrus juice, tea extracts, spices) that are naturally occurring and widely accepted by consumers, replacing the specialized chemical EDTA. These natural ingredients are effectively 'disposable' in the sense that they are familiar, acceptable food components rather than artificial additives.
2Adaptability or versatility
If natural antioxidants are used to replace EDTA, then consumer acceptance improves, but antioxidant effectiveness may be insufficient
Solution Approach 1:
The patent creates a composite antioxidant system combining multiple natural compounds: phenolic compounds (from tea, vinegar, spices), ascorbic acid, tocopherols, and organic acids. This composite approach synergistically enhances antioxidant effectiveness while maintaining natural ingredient status, overcoming the limitation of single natural antioxidants.
Solution Approach 2:
The patent merges multiple antioxidant mechanisms by combining phenolic compounds (free radical scavenging), ascorbic acid (reducing agent), and tocopherols (lipid oxidation inhibitors) into a unified antioxidant system, achieving cumulative protective effect against oil oxidation.
3Reliability
If filtration process is applied to balsamic vinegar, then oxidation reduction is achieved, but the process becomes inefficient and expensive
Solution Approach 1:
The patent extracts only the necessary antioxidant components (phenolic compounds, organic acids) from vinegar through controlled extraction methods, rather than applying complex filtration processes. This selective extraction achieves oxidation protection while maintaining industrial efficiency and avoiding costly filtration steps.
Solution Approach 2:
The patent replaces mechanical filtration systems with chemical extraction methods using food-grade solvents or direct incorporation of vinegar components. This substitution eliminates complex filtration infrastructure while achieving equivalent or superior oxidation protection through soluble antioxidant compounds.
4Reliability
If antioxidant system is added to food product, then oxidation prevention is achieved, but taste and color profile may be negatively influenced
Solution Approach 1:
The patent applies antioxidants with specific functional properties matched to their intended effect: phenolic compounds for oxidation protection, ascorbic acid for color stabilization, and organic acids for taste enhancement. Each component is selected for its local quality - specific antioxidant mechanism and sensory profile compatibility with the food product.
Solution Approach 2:
The patent selects natural ingredients that perform multiple functions: vinegar provides both antioxidant phenolic compounds and desirable taste; citrus juice offers ascorbic acid for oxidation protection plus color enhancement; spices contribute phenolics for antioxidant activity plus flavor enhancement. This multi-functionality eliminates the need for separate antioxidant and flavoring additions.
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 solution significantly reduces oxidation of vegetable oils, allowing for the use of natural ingredients, maintaining taste and color integrity, and being produced efficiently, thus replacing EDTA in food products like mayonnaise and salad dressings.
Implementation Method 1
Vegetable oil comprising mono-unsaturated or poly-unsaturated fatty acids in food products are prone to oxidation during storage of the food product
Implementation Method 2
providing the composition in the form of an oil-in-water emulsion, through high-shear emulsification sufficient to provide the oil droplets in the emulsion with a surface weighted mean diameter D3.2 of less than 20 micrometre
Data Source
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AI summary
The objective of the present invention is to provide compositions containing vegetable oils and an anti-oxidant system to prevent oxidation of the triglycerides in the vegetable oil in food products, in particular in products which are often stored for a long time. The antioxidant system should not give an undesired colour, and neither an undesired taste, to a food composition. Additionally, it should be a natural compound and/or common food ingredient, and fitting to the food composition with regard to taste and colour. This has been achieved by providing a food composition containing vegetable oil, wherein the composition comprises a source of organic acids, one or more organic acids other than acetic acid, amino acids, and one or more phenolic compounds. More in particular the source of organic acids comprises organic acids other than acetic acid to total organic acids in the source of organic acids at a weight ratio ranging from 0.5% to 60%; and the weight ratio of one or more amino acids to total organic acids in the source of organic acid ranges from 0.03% to 20%.