Guayule Resin Isoprenic Constituent Separation via Partitioning
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Solution Overview
Problem
Current methods for separating isoprenic constituents from guayule resin, such as guayulin A, B, argentatin A, B, C, and D, are expensive, difficult to scale, and result in low yields due to the complexity of the resin mixture and reliance on chromatographic purification processes.
Innovation Solution
A method involving defatted guayule resin partitioning with immiscible solvents for liquid-liquid and liquid-solid separation, followed by purification steps using solid matrices and crystallization, to achieve higher yields and purity of these constituents.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If chromatographic purification processes are used to separate isoprenic constituents from guayule resin, then separation purity is improved, but processing cost increases and scalability deteriorates
Solution Approach 1:
The patent extracts and removes the problematic low molecular weight rubber fraction from the guayule resin before performing chromatographic purification. This preliminary extraction step eliminates the main source of contamination that complicates subsequent separation processes, thereby improving both purity and scalability while reducing processing complexity
Solution Approach 2:
The patent performs preliminary fractionation of the guayule resin into different molecular weight ranges before chromatographic purification. By pre-separating the resin into high molecular weight and low molecular weight fractions, the subsequent chromatographic steps become simpler and more scalable, resolving the contradiction between purity and processing complexity
2Manufacturing precision
If chromatographic purification processes are used to separate isoprenic constituents from guayule resin, then separation purity is improved, but productivity decreases
Solution Approach 1:
The patent segments the guayule resin into distinct molecular weight fractions through preliminary fractionation. This segmentation allows each fraction to be processed independently through chromatographic purification, improving overall yield by preventing loss of desirable constituents in the low molecular weight fraction while maintaining high purity in the purified products
Solution Approach 2:
By extracting and discarding the low molecular weight rubber fraction before purification, the patent eliminates the source of contamination that would otherwise require extensive chromatographic steps. This increases productivity by reducing processing time and improving recovery yield while maintaining sufficient purity for commercial applications
3Ease of manufacture
If conventional extraction methods are used to obtain guayule resin constituents, then extraction simplicity is improved, but constituent purity deteriorates
Solution Approach 1:
The patent applies segmentation by dividing the resin extraction into multiple sequential steps: initial extraction of total resin, fractionation into molecular weight ranges, and further purification of specific isoprenic constituents. This segmented approach maintains relative simplicity while achieving high constituent purity that single-step methods cannot provide
Solution Approach 2:
The patent performs preliminary fractionation of the extracted resin into high and low molecular weight fractions before final purification. This preliminary action simplifies the subsequent purification steps by reducing the complexity of the mixture, thereby achieving high constituent purity without requiring overly complex extraction procedures
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 efficient and cost-effective separation and purification of isoprenic constituents, achieving yields of up to 30g of guayulin A and 20g of argentatin B per kilogram of crude resin, making them available for industrial applications and further chemical modification.
Implementation Method 1
subjecting the defatted resin to partitioning of the liquid-liquid type with solvents that are immiscible in each other thus obtaining an apolar extract containing the isoprenic constituents guayulin A, guayulin B and argentatin B; and a polar extract containing the isoprenic constituents argentatin A, argentatin C and argentatin D
Implementation Method 2
the step c) comprises a step in which the polar extract is subjected to partitioning of the liquid-liquid type with solvents immiscible in each other
Implementation Method 3
a step in which said apolar extract is subjected to partitioning of the solid-liquid type
Data Source
AI summary
Method for the separation of at least one isoprenic constituent from the resin of a plant of guayule and/or of the guayule type comprising the steps of: a) providing a defatted resin of guayule and/or of the guayule type; b) subjecting the defatted resin to partitioning of the liquid-liquid type with solvents that are immiscible in each other thus obtaining an apolar extract containing the isoprenic constituents guayulin A, guayulin B and argentatin B; and a polar extract containing the isoprene constituents argentatin A, argentatin C and argentatin D; and c) separating at least one isoprenic constituent from said polar extract and/or from the apolar extract thus obtained, wherein step c) comprises a step in which the polar extract is subjected to partitioning of the liquid-liquid type with solvents immiscible in each other and/or a step in which the apolar extract is subjected to partitioning of the solid-liquid type.