Monk Fruit Juice Purification Using Ion Exchange Resins
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing methods for producing sweet juice compositions from terpene glycoside-containing fruits like monk fruit result in undesirable flavors, stability issues, and significant loss of mogrosides, making them unsuitable for widespread use.
Innovation Solution
A method involving the use of cation and anion exchange resins, where the juice from these fruits is first clarified and then contacted with a cation exchange resin followed by an anion exchange resin, to produce a sweet juice composition that retains at least 60% of mogroside V, minimizing the absorption of mogroside V while removing compounds contributing to off-flavors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If existing methods are used to remove off-flavor components from monk fruit juice, then off-flavors are reduced, but significant amounts of mogrosides are also removed
Solution Approach 1:
The patent uses an adsorption resin as an intermediary substance that selectively binds to off-flavor components (grassy, earthy, bitter compounds) while allowing mogrosides to pass through. This mediator enables the separation of harmful substances from valuable sweet compounds without direct contact between them, resolving the contradiction between removing off-flavors and retaining mogrosides
Solution Approach 2:
The patent changes the chemical and physical parameters of the juice processing system by adjusting pH levels, using enzymatic treatment to break down problematic compounds, and controlling temperature during concentration. These parameter changes enable selective removal of off-flavor components while preserving mogrosides, as the parameters are optimized to affect harmful substances differently than the stable mogroside molecules
2Duration of action of stationary object
If monk fruit is dried for preservation, then shelf life is extended, but undesirable bitter and astringent flavors form
Solution Approach 1:
The patent replaces the traditional thermal drying process with a cold concentration process using reverse osmosis and vacuum concentration. This substitution eliminates the high temperatures that cause Maillard reactions and formation of bitter, astringent flavors, while still achieving preservation and extended shelf life through controlled concentration and sterile packaging
Solution Approach 2:
The patent utilizes phase transition principles by using vacuum concentration to lower the boiling point of water, allowing juice concentration at temperatures below 60°C. This prevents thermal degradation and flavor deterioration while still achieving water removal for preservation. The reverse osmosis process also uses phase separation principles to concentrate the juice without heat application
3Quantity of substance
If existing sweet juice compositions are produced, then sweetness is achieved, but color stability and overall stability are poor
Solution Approach 1:
The patent applies preliminary enzymatic treatment and filtration to remove unstable compounds, pectin, and suspended particles before concentration and packaging. By addressing potential stability issues in advance through enzyme addition and clarification steps, the final product achieves superior color stability and shelf life without compromising sweetness
Solution Approach 2:
The patent replaces traditional high-heat concentration methods with low-temperature vacuum concentration and reverse osmosis. This substitution prevents thermal oxidation and Maillard reactions that cause browning and color instability, while preserving the sweetness-active mogrosides. The gentle concentration process maintains color stability throughout storage
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 produces a sweet juice composition with a clean flavor profile and improved stability, retaining a significant amount of mogroside V, thus addressing the limitations of existing techniques.
Implementation Method 1
contacting the juice with the cation exchange resin and the anion exchange resin
Implementation Method 2
contacting the juice with the cation exchange resin and the anion exchange resin
Data Source
Figure 1
Figure 2
AI summary
The present disclosure relates to methods of producing a sweet juice composition from monk fruit and other fruit of the Cucurbitaceae family containing mogroside V and other terpene glycosides. The methods employ a cation exchange resin and an anion exchange resin to obtain a sweet juice composition with a clean flavor. The sweet juice composition can be used in a food, beverage, pharmaceutical or dietary supplement product.