High-Purity Glabridin Melt Crystallization for Solvent-Free Purification
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Solution Overview
Problem
Current methods for extracting high-purity glabridin are complex, costly, and often require toxic organic solvents, resulting in low product purity and high energy consumption.
Innovation Solution
A melt crystallization method is employed to purify glabridin, involving steps such as dissolution, adsorption, heating, cooling, crystallization, sweating, and multiple stages of recrystallization, achieving a purity of over 99.9% without the need for solvents.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If multiple recrystallizations are performed to achieve high purity glabridin, then product purity is improved, but production cost and energy consumption increase
Solution Approach 1:
The invention utilizes melt crystallization, which involves phase transition from liquid to solid, to achieve high-purity glabridin in a single step. The process melts crude glabridin and then controls crystallization to obtain >99.9% purity product, eliminating the need for multiple recrystallization cycles and significantly reducing energy consumption
Solution Approach 2:
The invention changes the physical state parameters (temperature, phase) of glabridin to achieve purification. By controlling the melting and crystallization parameters, the process achieves ultra-high purity in one step rather than requiring multiple iterations, thus reducing overall energy consumption
2Manufacturing precision
If multiple recrystallizations are performed to achieve high purity glabridin, then product purity is improved, but production complexity increases
Solution Approach 1:
The invention employs a single melt crystallization process utilizing phase transition, which simplifies the production流程 compared to multiple recrystallization steps. The process involves melting crude glabridin and controlling crystallization to achieve >99.9% purity, reducing operational complexity
Solution Approach 2:
The invention segments the purification process into distinct operational phases (melting, crystallization, filtration) within a single integrated process flow, making the complex task of achieving ultra-high purity manageable and simplifying overall process design
3Manufacturing precision
If traditional extraction methods are used to obtain high-purity glabridin, then product purity can be improved, but toxic organic solvents are required
Solution Approach 1:
The invention replaces chemical extraction methods using toxic organic solvents with a physical method (melt crystallization). This substitution eliminates the need for harmful chemicals while achieving the same or better purification效果, making the process environmentally friendly and safe
Solution Approach 2:
The melt crystallization process creates an inert, solvent-free environment for purification. By utilizing the melting and crystallization properties of glabridin itself, the process avoids introducing external toxic substances, ensuring product safety and environmental protection
4Ease of manufacture
If crude extraction is performed to obtain 40% glabridin, then production cost is reduced, but product color is yellow which affects cosmetic quality
Solution Approach 1:
The melt crystallization process utilizes phase transition to achieve both high purity and colorless appearance in a single step. The controlled crystallization from molten state produces colorless crystals with >99.9% purity, simultaneously addressing both cost-effectiveness and cosmetic quality requirements
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 simplifies the purification process, achieves ultra-high purity of glabridin, reduces energy consumption, and eliminates the use of toxic solvents, making it economically and environmentally favorable.
Implementation Method 1
adsorbing with macroporous adsorption resin AB-8
Implementation Method 2
heating and melting: adding the obtained glabridin coarse material into a melting crystallizer, and melting the material to be liquid
Implementation Method 3
cooling and crystallizing: cooling the glabridin coarse material in the step 2), controlling the cooling rate at 10° C./h to 30° C./h, and the final cooling temperature is at 155° C. to 160° C.; keeping at a constant temperature for 0.5 to 4 hours to crystallize glabridin
Implementation Method 4
sweating: sweating the crystals at the heating rate of 1 to 15° C./h after discharging the uncrystallized residual liquid, heating up to 160° C. to 168° C., keeping at a constant temperature for 0.5 to 2 hours, discharging the sweating liquid
Data Source
AI summary
The present invention provides a melt crystallization method for preparing high-purity glabridin, belonging to the field of chemical purification technology. The method mainly includes steps of melt crystallization, sweating, and material melting. This invention adopts a fractionating melt crystallization method to purify glabridin. The melt crystallization method was utilized in the present invention for purification, and can obtain ultra-high purity products with purity more than 99.9%. This method has the characteristics of simple operation, no need for a large amount of solvent, high product purity, environmental protection, and low energy consumption. It is a green separation and purification process. The technology is suitable for high demand of the market on high-purity glabridin, and has strong market competitive advantages.