Chocolate-like Food pH Adjustment for Flavor Stability
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Solution Overview
Problem
Chocolate-like foods containing highly unsaturated fatty acids, such as DHA and EPA, face challenges in maintaining flavor stability over time due to oxidation and difficulty in integration with mouthfeel-sensitive foods like chocolate.
Innovation Solution
A chocolate-like food formulation with a pH adjusted to 5.8 to 8, incorporating 0.02 to 5 weight % of EPA and DHA, and dispersing 3 to 65 weight % of a water-soluble antioxidant in a particle size of 300 nm or less, along with oil-soluble emulsifiers like polyglycerol esters and lecithin, to enhance stability and flavor retention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If highly unsaturated fatty acids are blended into chocolate-like food, then nutritional benefits are improved, but flavor stability deteriorates due to oxidation
Solution Approach 1:
The patent applies preliminary action by adjusting the pH to 5.8-8.0 before the oxidation process can significantly deteriorate the flavor. This preventive pH adjustment creates a stable environment that slows down oxidation of highly unsaturated fatty acids, allowing the product to maintain both nutritional content and flavor stability over the shelf life.
Solution Approach 2:
The patent changes the pH parameter to a specific range (5.8-8.0) to optimize the stability of highly unsaturated fatty acids in chocolate-like food. This parameter change creates conditions that reduce oxidation rate while maintaining the functional properties of the fatty acids, thereby resolving the contradiction between nutritional content and flavor stability.
2Quantity of substance
If highly unsaturated fatty acids are added to chocolate-like food, then nutritional value is improved, but integration with mouthfeel properties deteriorates
Solution Approach 1:
The patent adjusts the pH parameter to 5.8-8.0, which optimizes the interaction between highly unsaturated fatty acids and chocolate components. This parameter change improves compatibility and integration, allowing the fatty acids to be incorporated without compromising the characteristic mouthfeel of chocolate-like foods.
3Stability of the object's composition
If conventional methods are used to stabilize highly unsaturated fatty acids, then oxidation resistance is improved, but application difficulty increases due to capsule form
Solution Approach 1:
The patent extracts the stabilization function from complex capsule formulations and achieves it through a simpler pH adjustment approach. By taking out the essential stabilization mechanism and implementing it through pH control, the patent maintains oxidation resistance while greatly simplifying the manufacturing process and improving application ease in chocolate-like foods.
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 formulation effectively reduces flavor change over time, maintaining the nutritional benefits and mouthfeel of chocolate-like foods while preventing oxidation and off-flavors.
Implementation Method 1
highly unsaturated fatty acids are likely to oxidize and deteriorate
Implementation Method 2
an aqueous phase containing a total of 3 to 65 weight % of a water-soluble antioxidant dispersed in a particle size of 300 nm or less in an oil phase
Data Source
AI summary
The present invention relates to a chocolate-like food containing a highly unsaturated fatty acid-containing fat or oil, and the objective of the present invention is to provide such a chocolate-like food that is suppressed in change in the flavor over time. The present invention is able to suppress change in the flavor over time of a chocolate-like food containing a highly unsaturated fatty acid-containing fat or oil by adjusting the pH thereof to a value within a predetermined range. It is preferable to use a highly unsaturated fatty acid-containing fat or oil which has been subjected to antioxidation treatment. It is preferable that the antioxidation treatment is carried out by dispersing water phases, in each of which a predetermined amount of a water-soluble antioxidant is dissolved, in the highly unsaturated fatty acid-containing fat or oil such that the water phases have particle diameters of 300 nm or less.