Eutectic Extract Purification via Immiscible Phase Separation

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Solution Overview

Problem

Current methods for extracting and purifying eutectic extracts using deep eutectic solvents result in highly diluted extracts with low volatility, making it difficult to concentrate active compounds effectively, limiting their commercial value.

Innovation Solution

A process involving the in-situ formation of eutectic extracts by mixing exogenous amines with plant, animal, or prokaryotic biological materials, followed by a purification method using immiscible liquids to separate and concentrate active compounds.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If deep eutectic solvents are used for extraction, then extract profile control is improved, but the extract becomes extremely diluted and difficult to concentrate

Engineering Contradiction:
Improveextract profile controlVSAvoidactive compound concentration
Core Design Contradiction:
Manufacturing precisionVSQuantity of substance

Solution Approach 1:

The patent extracts the deep eutectic solvent from the mixture after extraction is complete, separating it from the active compounds. This allows the solvent to be removed and the active compounds to be concentrated, resolving the dilution problem while maintaining the extraction profile control benefits

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent changes the physical state and concentration parameters by removing the solvent through evaporation or other separation methods. This transforms the diluted extract into a concentrated form, maintaining the beneficial extraction profile while eliminating the dilution issue

Inventive Principle:
Principle #35Parameter changes

2Object-affected harmful factors

If deep eutectic solvents are used for extraction, then solvent toxicity is reduced, but the low volatility makes solvent removal difficult

Engineering Contradiction:
Improvesolvent toxicityVSAvoidsolvent removal ease
Core Design Contradiction:
Object-affected harmful factorsVSEase of manufacture

Solution Approach 1:

The patent replaces thermal evaporation methods with alternative separation techniques such as liquid-liquid extraction or adsorption. This allows removal of the non-volatile deep eutectic solvent without relying on volatility, maintaining low toxicity benefits while solving the removal difficulty

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent introduces an intermediary substance or phase that facilitates the removal of the deep eutectic solvent. This intermediary enables separation of the solvent from active compounds without requiring the solvent to be volatile, preserving the low toxicity advantage

Inventive Principle:
Principle #24Intermediary (Mediator)

3Manufacturing precision

If chromatographic methods are used for purification, then active compound separation is improved, but processing time increases and yield decreases

Engineering Contradiction:
Improveactive compound separationVSAvoidprocessing speed and yield
Core Design Contradiction:
Manufacturing precisionVSProductivity

Solution Approach 1:

The patent segments the purification process into simpler steps that can be performed in parallel or sequence without requiring complex chromatographic systems. This maintains separation effectiveness while reducing processing time and improving yield

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent inverts the traditional approach by performing crude extraction first with deep eutectic solvents, then using simpler purification methods on the already-enriched extract. This reverse sequence maintains separation precision while dramatically improving productivity compared to traditional chromatographic purification of crude extracts

Inventive Principle:
Principle #13The other way round (Inversion)

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 process enhances the concentration of active compounds in eutectic extracts, increasing their activity and commercial value by up to 100%, suitable for applications in aromas, fragrances, foodstuffs, cosmetics, pharmaceuticals, and nutraceuticals.

Implementation Method 1

forming a mixture between (a) at least one exogenous amine; and (b) biological material which is plant and/or animal and/or prokaryotic biological material; (ii) allowing the mixture to interact to form a liquid, gel or a gel-like eutectic extract

Methodology Applied
Scientific EffectDeep eutectic mixture formation:

Implementation Method 2

The biological material comprises at least one endogenous compound capable of forming a complex with the at least one exogenous amine

Methodology Applied
Scientific EffectHydrogen bonding:

Implementation Method 3

a) mixing a eutectic extract or eutectic combination with a liquid that is immiscible with the eutectic extract or eutectic combination; b) allowing the mixture formed in step (a) to equilibrate into two phases; and c) separating the eutectic phase from the phase containing the liquid that is immiscible with the eutectic extract or eutectic combination

Methodology Applied
Scientific EffectLiquid-liquid phase separation: Liquid-Liquid Extraction

Data Source

PatentEP3801806B1Eutectic extract purification
Publication Date: 2025.12.24 NATUREX SA
  • EP3801806B1 patent drawingFigure 1
  • EP3801806B1 patent drawingFigure 2
  • EP3801806B1 patent drawingFigure 3

AI summary

The present invention relates to processes for forming eutectic extracts, processes for purifying eutectic extracts and uses of the eutectic extracts such as in food-stuffs, pharmaceuticals, nutraceuticals and supplements, such as food supplements and sports supplements.