Sorbic Acid Stabilization in Beverage Syrup via Solid Dispersion
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Solution Overview
Problem
Sorbic acid's low solubility in beverage syrups leads to instability and precipitation, particularly in fountain syrups requiring long-term storage, which is not adequately addressed by existing stabilization methods.
Innovation Solution
The use of solid-dispersion technology involving spray drying sorbic acid with a carrier to form small particles, which are then added to the syrup, enhancing solubility and stability by forming a complex that prevents crystallization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If sorbic acid is added to beverage syrup to provide preservative effect, then microbial activity is retarded, but sorbic acid precipitates due to low solubility
Solution Approach 1:
The patent introduces a solubility-enhancing compound (intermediary) that forms a complex with sorbic acid, increasing its solubility in the syrup medium. This intermediary substance acts as a mediator between the preservative (sorbic acid) and the beverage matrix, allowing the preservative to remain dissolved and effective without precipitating.
Solution Approach 2:
The patent creates a composite system where sorbic acid is combined with a solubility-enhancing compound to form a soluble complex. This composite approach allows the preservative to maintain both its antimicrobial function and its solubility stability in the beverage syrup.
2Reliability
If sorbic acid concentration is increased to improve preservative effect, then microbial protection is enhanced, but precipitation increases due to exceeded solubility limit
Solution Approach 1:
The solubility-enhancing compound serves as an intermediary that enables higher concentrations of sorbic acid to remain in solution. By forming a soluble complex, the intermediary allows the system to achieve higher preservative levels without encountering the solubility limit that would otherwise cause precipitation.
3Duration of action of stationary object
If conventional stabilization methods are used, then short-term stability is achieved, but long-term stability (6 months) is not maintained
Solution Approach 1:
The patent changes the chemical parameters of the system by introducing a solubility-enhancing compound that fundamentally alters the solubility characteristics of sorbic acid. This parameter change enables the system to maintain stability over extended periods (6 months or longer) rather than just short-term stability.
4Stability of the object's composition
If high shear mixing and homogenization are used to form aqueous dispersion, then sorbic acid is stabilized temporarily, but the process is complex and concentration remains low
Solution Approach 1:
Instead of relying on complex mechanical mixing processes, the patent uses a chemical intermediary (solubility-enhancing compound) to achieve stabilization. This chemical approach simplifies the process by eliminating or reducing the need for high-shear mixing and homogenization equipment while achieving better and more stable results.
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 method achieves stable sorbic acid concentrations up to 2300 ppm in fountain syrups, maintaining clarity and preventing precipitation for at least six months, significantly improving the shelf life and appearance of beverages.
Implementation Method 1
The use of solid-dispersion technology involving spray drying sorbic acid with a carrier to form small particles
Implementation Method 2
enhancing solubility and stability by forming a complex that prevents crystallization
Data Source
AI summary
A method for preparing a sorbate powder comprising dissolving sorbate salt in water, adding a stabilizing carrier to the sorbate solution, and spray drying the sorbate solution to form the sorbate powder. The sorbate powder is stable in beverage syrup.