Fruit Juice PAC Purification Using Water and Cation Exchange Resin

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Solution Overview

Problem

Existing methods for capturing and concentrating proanthocyanidins and sugars from fruit juices often rely on costly and toxic organic solvents, posing environmental and economic challenges.

Innovation Solution

A process using water as the sole mobile phase to extract proanthocyanidins and sugars from fruit juices through a strong cation exchange resin, allowing for the separation of larger proanthocyanidins from smaller molecules and organic acids without the need for organic solvents.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If organic solvents are used to extract proanthocyanidins and sugars from fruit juices, then extraction efficiency is improved, but environmental harm and operational costs increase

Engineering Contradiction:

Improveextraction efficiencyVSAvoidenvironmental harm from toxic solvents

Core Design Contradiction:

ProductivityVSObject-affected harmful factors

Solution Approach 1:

The patent changes the chemical parameter of the extraction medium from organic solvents to water, fundamentally altering the extraction system to eliminate toxicity while maintaining effectiveness. This parameter change allows the use of water as a safe, non-toxic mobile phase that still achieves successful extraction of proanthocyanidins and sugars through the cation exchange resin mechanism

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent replaces expensive, hazardous organic solvents with water, which is inexpensive and environmentally benign. This substitution follows the principle of using cheap, non-harmful materials to replace costly and dangerous ones, eliminating the need for special handling, disposal procedures, and safety infrastructure associated with organic solvents

Inventive Principle:

Principle #27Cheap short-living objects (Disposable)

2Quantity of substance

If organic solvents are used for extraction, then proanthocyanidin concentration is improved, but operational costs increase

Engineering Contradiction:

Improveproanthocyanidin concentrationVSAvoidoperational costs

Core Design Contradiction:

Quantity of substanceVSEase of manufacture

Solution Approach 1:

The patent changes the extraction medium from expensive organic solvents to water, fundamentally altering the cost structure of the process. This parameter change eliminates the need to purchase, store, and dispose of costly organic solvents while maintaining effective extraction through the cation exchange mechanism

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent substitutes inexpensive water for expensive organic solvents, directly reducing material costs. Water requires no special handling infrastructure, storage facilities, or disposal systems, thereby eliminating significant operational expenses associated with organic solvent-based extraction processes

Inventive Principle:

Principle #27Cheap short-living objects (Disposable)

3Object-affected harmful factors

If water is used as mobile phase, then environmental safety is improved, but extraction selectivity may worsen

Engineering Contradiction:

Improveenvironmental safetyVSAvoidextraction selectivity

Core Design Contradiction:

Object-affected harmful factorsVSManufacturing precision

Solution Approach 1:

The patent introduces a cation exchange resin as an intermediary between the water mobile phase and the target compounds. This resin mediator enables selective interaction with proanthocyanidins and sugars, providing the necessary selectivity that water alone would not achieve. The resin acts as a bridge that maintains both the environmental safety of water and the precision of selective extraction

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent creates a composite extraction system combining water (mobile phase) with cation exchange resin (stationary phase). This composite approach leverages the environmental benefits of water while the resin component provides selective binding capabilities, achieving both safety and precision through material composition rather than relying on water's selective properties alone

Inventive Principle:

Principle #40Composite materials

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 high purity extraction of proanthocyanidins and increased sweetening factor of the sugar fraction, while avoiding the use of harmful chemicals and reducing operational costs.

Implementation Method 1

eluting an aqueous solution comprising said proanthocyanidins on a strong cation exchange resin

Methodology Applied

Scientific EffectIon exchange: Ion Exchange

Data Source

PatentUS12538935B2Process for producing purified PAC's and sugar from fruit juice, and compositions comprising same

Publication Date: 2026.02.03 WEST INVEST SA

AI summary

This disclosure relates to an proanthocyanidin extract, extract comprising sugars of a fruit juice processes for preparing same as well as the use of the extract or a composition thereof as food or neutraceutical composition.