Lecithin Sugar Ester Emulsifier Acid Stability
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Solution Overview
Problem
Existing emulsifier compositions for fat-soluble food colorings in acidic foods like fruit juices lack sufficient acid stability, leading to instability and degradation of the colorants.
Innovation Solution
A composition comprising a combination of lecithin and sugar esters, specifically sucrose esters of saturated or unsaturated fatty acids, which provides high acid stability, enabling effective emulsification of carotenoid-based food colorings in acidic environments such as fruit drinks and preparations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional emulsifiers (lecithin or sugar esters alone) are used in acidic foods, then emulsification of fat-soluble colorants is achieved, but acid stability is insufficient leading to degradation
Solution Approach 1:
The patent applies composite materials by combining lecithin and sugar esters of fatty acids in specific ratios (0.1:0.9 to 0.9:0.1) to create a synergistic emulsifier system. This composite approach resolves the technical contradiction by achieving both high acid stability and emulsion stability that neither component can provide alone in acidic food environments.
Solution Approach 2:
The patent applies parameter changes by optimizing the ratio of lecithin to sugar esters and controlling the particle size of the emulsified droplets (0.1-10 µm). By adjusting these parameters, the emulsifier composition achieves enhanced acid stability while maintaining emulsion stability in acidic conditions up to pH 2.0.
2Quantity of substance
If fat-soluble dyes are used in water-containing foods, then coloration is achieved, but solubility in water is poor
Solution Approach 1:
The patent applies the intermediary principle by using the lecithin-sugar ester emulsifier composition as a mediator between fat-soluble colorants and water-containing foods. This emulsifier system enables the colorants to be dispersed and stabilized in aqueous environments, achieving both high colorant concentration and water solubility through emulsion formation.
3Stability of the object's composition
If emulsifiers are used to stabilize oil-in-water emulsions, then phase separation is prevented, but acid stability of the emulsifier is low
Solution Approach 1:
The patent applies merging by combining lecithin and sugar esters of fatty acids into a single emulsifier system that functions synergistically. This combination merges the emulsification capabilities of both components while achieving superior acid stability, resolving the contradiction between emulsion stability and acid stability in acidic food applications.
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 emulsifier composition significantly exceeds the acid stability of individual components, ensuring stable emulsification and color retention of carotenoids in acidic foods over an extended period, suitable for fruit drinks, confectionery, beverages, and yoghurt products.
Implementation Method 1
fat-soluble dyes can be emulsified in water-containing foods in the form of oil-in-water emulsions. The oil phase forms the dispersed phase, while the aqueous phase forms the coherent phase. To stabilize these emulsions, emulsifiers are used that prevent phase separation.
Implementation Method 2
emulsifiers are used that prevent phase separation. Using the emulsifiers, the fat-soluble food colorings are converted into a water-soluble form.
Implementation Method 3
emulsifiers are used that prevent phase separation. The emulsifier composition according to the invention has a high acid stability.
Data Source
AI summary
Emulsifier composition (I), for emulsifying at least a fat-soluble pigment in a food, comprises at least a lecithin and at least a sugar ester of fatty acid.