Microwave Extraction for Rubber and Resin Analysis
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Solution Overview
Problem
Current methods for extracting natural rubber from rubber-containing plants, such as guayule and hevea trees, are time-intensive and low-throughput, requiring extensive sample preparation and large solvent amounts, making rapid screening difficult.
Innovation Solution
A microwave extraction method involving a container with a mixture of plant sample and solvent, irradiated to increase temperature for efficient extraction and separation of natural rubber or resin, allowing for rapid and high-throughput quantification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional Soxhlet extraction methods are used, then extraction completeness is achieved, but analysis time is lengthy and throughput is low
Solution Approach 1:
The patent replaces the mechanical reflux system of Soxhlet extraction with microwave irradiation to heat the solvent and sample mixture. This substitution of heating mechanism dramatically reduces extraction time from hours to minutes while maintaining extraction efficiency, directly resolving the contradiction between extraction completeness and analysis throughput
Solution Approach 2:
The patent changes the temperature and time parameters of the extraction process by using microwave heating to rapidly elevate temperature followed by quick cooling. This parameter transformation allows the extraction to be completed in minutes rather than hours, improving throughput while preserving extraction completeness
2Measurement precision
If traditional extraction methods are used, then accurate quantification is achieved, but solvent consumption is large
Solution Approach 1:
By replacing the continuous solvent circulation system of Soxhlet extraction with microwave-assisted extraction using minimal solvent, the patent reduces solvent consumption significantly while maintaining quantification accuracy through the targeted heating effect that enhances extraction efficiency with less solvent
Solution Approach 2:
The patent uses a partial amount of solvent compared to traditional methods, applying microwave energy to achieve complete extraction with reduced solvent volume. This partial action approach maintains extraction effectiveness while minimizing solvent loss
3Measurement precision
If extensive sample preparation is performed, then extraction accuracy is improved, but analysis time increases
Solution Approach 1:
The patent performs minimal preliminary sample preparation (chopping or grinding) compared to traditional methods, then uses microwave heating to rapidly complete the extraction. This reduced preliminary action combined with rapid thermal processing maintains extraction accuracy while minimizing total analysis time
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 enables quick and accurate quantification of natural rubber and resin, reducing analysis time and solvent usage, making it suitable for rapid screening and breeding/harvesting decisions.
Implementation Method 1
The container holding the mixture is placed in a vessel and the mixture is irradiated to increase the temperature of the mixture to facilitate the extraction of the component from the sample of the rubber-containing plant into the solvent
Data Source
AI summary
Methods are described for microwave extraction of a component from a rubber-containing plant by providing a container holding a mixture of a sample of the rubber-containing plant and a solvent, placing the container holding the mixture in a vessel, irradiating the mixture in the vessel to increase the temperature of the mixture to extract the component from the sample of the rubber-containing plant into the solvent, and separating the extracted component from the solvent to quantify the amount of the component in the sample. Methods are also described for quantifying the amount of natural rubber in a sample from a rubber-containing plant and quantifying the amount of resin in a sample from a rubber-containing plant.