Anthocyanin Extraction Purity Control via Segmentation
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Solution Overview
Problem
Existing methods for extracting anthocyanin derivatives from plant sources, such as blueberries, do not provide optimal control over the purity level of the extracts obtained, leading to a need for an improved method that enhances both extraction and purification processes.
Innovation Solution
A method involving the separation of a homogenized plant extract in a polar solvent, followed by filtration and evaporation to obtain a semi-solid extract, and subsequent solid phase extraction using an adsorbent material like C-18 silica gel to purify anthocyanin derivatives, with steps including washing to remove impurities and eluting to recover the purified anthocyanins.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional extraction methods are used, then extraction simplicity is maintained, but purity control of anthocyanin derivatives is insufficient
Solution Approach 1:
The extraction process is divided into distinct stages: initial extraction with polar solvent, filtration to remove solids, evaporation to concentrate, and solid phase extraction for final purification. Each stage targets specific impurities and progressively enhances purity control without requiring complex equipment throughout the entire process.
Solution Approach 2:
An adsorbent material is introduced as an intermediary substance during solid phase extraction. This material selectively binds to anthocyanin derivatives while allowing other compounds to pass through, enabling precise purity control through a simple column-based operation rather than complex multi-step procedures.
2Manufacturing precision
If multi-step purification process is implemented, then purity of anthocyanin derivatives is improved, but processing time increases
Solution Approach 1:
The polar solvent extraction is performed first to pre-concentrate anthocyanin derivatives from the plant material before the main purification step. This preliminary action reduces the volume and complexity of the subsequent solid phase extraction, thereby reducing total processing time while maintaining high purity outcomes.
Solution Approach 2:
The process utilizes phase transitions including evaporation of polar solvent to concentrate the extract, and phase separation during solid phase extraction where anthocyanins are retained on the adsorbent while impurities pass through. These natural phase changes enable efficient separation without requiring extensive processing 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 achieves a higher purity and yield of anthocyanin derivatives, specifically from blueberries, by effectively separating and purifying the compounds through a multi-step process involving filtration, evaporation, and solid phase extraction, resulting in a concentrated anthocyanin extract with enhanced purity and yield.
Implementation Method 1
separating an homogenized extract of said plant source in a polar solvent
Implementation Method 2
substantially separating said polar solvent from said filtrate to obtain a semi-solid extract
Implementation Method 3
performing a solid phase extraction of the semi-solid extract of step ii) with an adsorbent material and an elution solvent to adsorb the anthocyanin derivatives present in the semi-solid extract on the adsorbent material
Implementation Method 4
eluting the adsorbed anthocyanin derivatives of step iii) from the adsorbent material for recovering the purified anthocyanin derivatives
Data Source
AI summary
The present document describes a method for extracting anthocyanin derivatives from a plant source. The method comprises the step of separating a homogenized extract of plant source in a polar acidified solvent for obtaining a residual solid, and a filtrate mixed with the acidified polar solvent. The separation includes a coarse filtration done by centrifugation of the plant source extract, by a filtration with a first filter having a pore size of about 100 μm, and a fine filtration is done using a second filter having a pore size of about 10 μm. Then, the filtrate mixed with the acidified polar solvent is evaporated for substantially separating the acidified polar solvent from the filtrate to obtain a semi-solid extract of anthocyanin derivatives.