Larch Root Dihydroquercetin Extraction Process
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current methods for extracting dihydroquercetin from larch trees are inefficient and wasteful, as they primarily utilize above-ground materials and lack industrialization, with varying solvent use and unverified yields, while neglecting the higher content in roots below the earth surface.
Innovation Solution
A method involving the selection and processing of larch tree roots with high dihydroquercetin content, using a thermal reflux percolation process with a mixed solvent of deionized water and acetonitrile, followed by specific processing steps to achieve high purity and yield, and recycling of the extracted material for further use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If above-ground larch tree materials are used for extraction, then the extraction process is simpler, but the dihydroquercetin content and yield are lower
Solution Approach 1:
Instead of using the conventional above-ground parts of larch trees, the patent inverts the approach by utilizing the roots below ground, which contain higher dihydroquercetin content (2.9%-3.9%). This inversion of the raw material source resolves the contradiction by achieving higher yield while managing the increased processing complexity through systematic methods.
Solution Approach 2:
The patent changes the parameter of raw material selection from above-ground parts to roots, and optimizes extraction parameters including using a mixed solvent system (deionized water and acetonitrile in 1:1 volume ratio), controlling extraction temperature (60°C), and specifying particle size (3×3×6 mm). These parameter changes enable high yield extraction while managing process complexity.
2Productivity
If conventional extraction methods are used, then the process is simpler, but the yield and purity of dihydroquercetin are lower
Solution Approach 1:
The patent applies preliminary actions including cleaning and washing the roots to remove impurities, cutting into specific sizes (3×3×6 mm), and air-drying before extraction. These preliminary preparations optimize the raw material state, enabling higher yield and purity while making the subsequent extraction process more efficient and manageable.
Solution Approach 2:
The patent uses a mixed solvent system consisting of deionized water and acetonitrile (1:1 volume ratio) as an intermediary medium for extraction. This solvent combination acts as a mediator that effectively extracts dihydroquercetin from the root material, achieving 95.8% yield and 99.7% purity while maintaining a controlled and optimized extraction process.
3Productivity
If larch tree roots are utilized, then the dihydroquercetin yield increases, but the processing complexity and cost increase
Solution Approach 1:
The patent segments the root material into uniform pieces with specific dimensions (3×3×6 mm) and surface area (approximately 16), which standardizes the processing and facilitates efficient extraction. This segmentation makes the complex processing of roots more manageable and reproducible, balancing the increased yield with improved ease of manufacture.
Solution Approach 2:
The patent optimizes multiple processing parameters including extraction temperature (60°C), solvent composition (deionized water and acetonitrile in 1:1 ratio), extraction time (3.5 hours), and particle size specifications. These controlled parameter changes enable high yield extraction while making the process systematic and easier to manufacture at scale.
4Manufacturing precision
If traditional solvents are used for extraction, then the process is more familiar, but the extraction efficiency and purity are lower
Solution Approach 1:
The patent employs a mixed solvent system of deionized water and acetonitrile (1:1 volume ratio) as an intermediary extraction medium. This solvent combination provides superior extraction efficiency compared to traditional single solvents, achieving 99.7% purity while maintaining a manageable extraction system through controlled composition and ratio.
Solution Approach 2:
The patent uses a composite solvent system combining deionized water and acetonitrile in specific proportions. This composite approach leverages the complementary properties of both solvents to achieve high extraction efficiency and product purity, while the defined composition keeps the extraction system complexity controlled and reproducible.
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 achieves a high yield and purity of dihydroquercetin, increasing the utilization rate of larch tree roots and providing an environmentally friendly process for extracting this valuable antioxidant, with a 95.8% yield and 99.7% purity, while also enabling the recycling of the dried wood for paper-making and other applications.
Implementation Method 1
using a thermal reflux percolation process with a mixed solvent of deionized water and acetonitrile
Implementation Method 2
A method involving the selection and processing of larch tree roots with high dihydroquercetin content, using a thermal reflux percolation process with a mixed solvent of deionized water and acetonitrile
Implementation Method 3
The extracting solution was then subjected to evaporation and concentration to obtain crystals
Data Source
AI summary
The present invention provides a method for extracting dihydroquercetin from roots of larch trees in a specific region by utilizing a resource advantage that the roots (200 mm below the earth surface) of tree species has a relatively high content of dihydroquercetin. The method includes steps of: selecting raw material, processing, extracting, concentrating, hydrolyzing, further extracting and recrystallizing. The present invention has researched and established a process with optimized environmental protection and indexes to fill the gap in domestic industrialized extraction process by utilizing the resource advantage that the roots of tree species has relatively high content of dihydroquercetin.