Lactic Acid Stabilization of Confectionery Tablets Against Browning
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Solution Overview
Problem
Confectionery products containing ingredients like condensed tannins, proanthocyanidins, catechins, curcuminoids, and vanillin undergo undesirable browning due to oxidation, leading to color alterations that affect product appearance and quality.
Innovation Solution
Incorporating lactic acid at a concentration of 0.2-0.3% of the total weight of the product prevents browning in confectionery tablets containing these active ingredients, while maintaining flavor integrity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If active ingredients like condensed tannins, proanthocyanidins, catechins, curcuminoids, and vanillin are used in confectionery products, then the product gains beneficial properties (antioxidant, antiseptic, flavoring), but the product undergoes undesirable browning due to oxidation
Solution Approach 1:
The patent applies this principle by using lactic acid to convert the harmful oxidation process into a beneficial outcome. The lactic acid creates an acidic environment that prevents oxidation of the active ingredients, thereby converting the potential harm (browning) into a benefit (color stability). This is achieved by adding lactic acid in amounts of 0.1-10% by weight to the confectionery product formulation.
Solution Approach 2:
The patent changes the pH parameter of the product by introducing lactic acid. This parameter change (lowering pH) fundamentally alters the chemical environment to prevent oxidation. The specific pH range achieved (3.0-6.0) through lactic acid addition is critical for maintaining color stability while preserving the beneficial properties of the active ingredients.
2Ease of operation
If food acids are used to adjust pH in confectionery formulations, then the product achieves desired acidity and flavor enhancement, but there is no proven effectiveness in preventing color alterations caused by active ingredients
Solution Approach 1:
The patent positions lactic acid as an intermediary substance that mediates between the active ingredients and the oxidation process. Unlike other food acids, lactic acid specifically interferes with the oxidation mechanism of phenolic compounds, acting as a protective mediator. This intermediary role is achieved through lactic acid's unique chemical properties and its ability to chelate metal ions that catalyze oxidation.
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
Lactic acid effectively inhibits color changes in confectionery products over time, preserving the product's appearance and flavor without causing organoleptic alterations.
Implementation Method 1
lactic acid, in the amount of 0.2 to 0.3 % by weight of the total composition, effectively prevents browning and color alterations over time caused by the presence of compounds such as vanillin, green tea polyphenols, in particular epigallocatechin gallate
Data Source
AI summary
Disclosed is a confectionery product consisting of a single- or multilayer tablet containing one or more active ingredients liable to cause browning of the product as an undesirable side effect, and an amount of lactic acid able to prevent said browning.