Rebaudioside D Solubility in Carbonated Soft Drink Production
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Rebaudioside D (Reb D) is difficult to use as a primary sweetener in carbonated soft drinks due to its low solubility in water at room temperature, which makes it challenging to achieve the required concentration for sweetness in traditional carbonation processes, as it needs to be heated to near boiling point for dissolution and can precipitate upon cooling.
Innovation Solution
Dissolving Reb D in the water source instead of the syrup, allowing the use of Reb D sweetened water, which is then carbonated and combined with unsweetened syrup to form the diet carbonated soft drink, eliminating the need for high temperature heating and achieving the desired sweetness without precipitation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If Reb D is used as the primary sweetener in carbonated soft drinks, then the sweetness potency is sufficient (about 200 times sweeter than sugar), but the low water solubility at room temperature prevents achieving the required concentration for adequate sweetness in traditional carbonation processes
Solution Approach 1:
The patent changes the temperature parameter during the dissolution process, heating water to near boiling point to achieve complete dissolution of Reb D, which has low solubility at room temperature. This temporary parameter change enables achieving the required concentration for adequate sweetness.
Solution Approach 2:
The patent performs preliminary dissolution of Reb D in concentrated syrup before final carbonation and dilution. By dissolving Reb D in advance at higher temperatures and concentrations, the system ensures adequate sweetness is achieved even after dilution with carbonated water.
2Ease of manufacture
If Reb D is heated to near boiling point to achieve complete dissolution, then the solubility is improved, but the process becomes impractical for beverage bottlers and may cause precipitation upon cooling
Solution Approach 1:
The patent performs preliminary dissolution of Reb D in concentrated syrup at elevated temperatures, then maintains this concentrated form through storage and transport. The final carbonation and dilution occur closer to consumption, minimizing the time the solution spends in a metastable state and reducing precipitation risk.
Solution Approach 2:
The patent creates a concentrated syrup phase with different properties than the final diluted beverage. The high concentration and temperature conditions are maintained locally in the syrup during storage and handling, while the final product achieves lower concentration and room temperature, preventing precipitation.
3Productivity
If traditional carbonation processes are used with Reb D, then the beverage can be produced, but the low solubility requires 6 folds concentration in syrup which is difficult to achieve without high temperature heating
Solution Approach 1:
The patent performs preliminary dissolution of Reb D in concentrated syrup before final carbonation. By preparing the concentrated sweetener solution in advance at elevated temperatures, the system enables traditional carbonation processes to proceed without requiring continuous high-temperature heating during bottling operations.
Solution Approach 2:
The patent changes the temperature parameter during the syrup preparation phase to enable complete dissolution of Reb D, then allows cooling during storage and transport. This parameter change strategy separates the dissolution step from the carbonation and bottling steps, making the overall process practical for beverage production.
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
This method allows for the production of diet carbonated soft drinks using Reb D as the primary sweetener, providing adequate sweetness without the need for high temperature processing, ensuring stability and consistency in the final product.
Implementation Method 1
Reb D needs to be heated to near boiling water temperature for 2 hours in order to achieve complete dissolution
Implementation Method 2
This syrup is then diluted by 5 folds of water and injected with CO2 to form the CSD
Data Source
Figure 1~2
AI summary
A method of producing a diet carbonated soft drink comprising combining water and a sweetening amount of Rebaudioside D (Reb D) to produce Reb D sweetened water; injecting carbon dioxide into the Reb D sweetened water to produce carbonated Reb D sweetened water; combining the carbonated Reb D sweetened water with unsweetened syrup to form the diet carbonated soft drink. Alternatively, the method comprises combining water and a sweetening amount of Rebaudioside D (Reb D) to produce Reb D sweetened water; combining the Reb D sweetened water with syrup; injecting carbon dioxide into the combined Reb D sweetened water and syrup to produce the diet carbonated soft drink.