Highly Soluble Starch via Sonication for Maltodextrin Replacement

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Solution Overview

Problem

Existing methods for producing maltodextrin alternatives, such as pre-gelatinized starches, require chemical or enzymatic treatments, which are not consumer-friendly due to 'clean label' concerns, and do not achieve the desired high solubility and viscosity properties of maltodextrins.

Innovation Solution

A method involving the preparation of highly soluble tuber or cereal starch through a physical process, specifically cooking a starch-water mixture and sonication under controlled conditions, to produce a starch with a specific oligosaccharide content, solubility, and viscosity profile similar to maltodextrins.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If chemical or enzymatic treatments are used to produce maltodextrin alternatives, then solubility and viscosity properties can be improved, but the product fails to meet 'clean label' consumer requirements

Engineering Contradiction:

Improvesolubility and viscosity propertiesVSAvoidchemical additives and processing concerns

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent replaces chemical and enzymatic treatment systems with a physical-mechanical system consisting of high-shear mixing and extrusion processing. This mechanical approach achieves maltodextrin-like solubility and viscosity without introducing chemical additives, thereby resolving the contradiction between functional properties and clean label requirements

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent changes the physical parameters of starch during extrusion processing (temperature, pressure, shear rate) to transform native starch into a product with maltodextrin-like functional properties. By controlling these physical parameters rather than using chemical reagents, the invention achieves both high solubility/viscosity and clean label compliance

Inventive Principle:

Principle #35Parameter changes

2Reliability

If pre-gelatinized starches are used to improve solubility, then cold water dissolution is achieved, but the product exhibits grainy texture and weak gels

Engineering Contradiction:

Improvecold water solubilityVSAvoidtexture homogeneity and gel strength

Core Design Contradiction:

ReliabilityVSStability of the object's composition

Solution Approach 1:

The patent applies preliminary high-shear mixing and extrusion treatment to starch before final product formation. This preliminary mechanical action modifies the starch structure to prevent graininess and strengthen gel formation while maintaining cold water solubility, thus resolving the texture and gel stability issues associated with conventional pre-gelatinized starches

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent creates a composite structure through extrusion processing that combines modified starch components into a homogeneous matrix. This composite approach eliminates the grainy texture of simple pre-gelatinized starches while maintaining solubility and enhancing gel strength through the integrated structure

Inventive Principle:

Principle #40Composite materials

3Object-affected harmful factors

If physical modification methods are used to improve water solubility, then cleaner processing is achieved, but the solubility and viscosity properties do not reach maltodextrin levels

Engineering Contradiction:

Improvechemical-free processingVSAvoidsolubility and viscosity performance

Core Design Contradiction:

Object-affected harmful factorsVSReliability

Solution Approach 1:

The patent employs dynamic high-shear mixing and extrusion processing that creates intense mechanical action during starch modification. This dynamic mechanical treatment achieves thorough starch structure modification comparable to chemical methods, delivering maltodextrin-level solubility and viscosity through physical means alone

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The extrusion processing applies periodic cycles of compression and expansion to the starch material, creating repeated mechanical stress that effectively modifies starch structure. This periodic mechanical action achieves comprehensive solubility and viscosity improvement without chemical additives, resolving the contradiction between clean processing and functional performance

Inventive Principle:

Principle #19Periodic action

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 resulting starch achieves over 90% cold water solubility and low viscosity, comparable to maltodextrins, without the use of chemicals, making it suitable for food applications like flavor encapsulation and other food products.

Implementation Method 1

In pre-gelatinization, the granular structure of starch is totally destroyed as a result of heating

Methodology Applied

Scientific EffectGelatinization:

Implementation Method 2

The methods involve the treatment of starch granules under different temperature/moisture combinations, pressure, shear and irradiation

Methodology Applied

Scientific EffectUltrasonic cavitation: Acoustic Cavitation

Data Source

PatentUS20250257153A1Highly soluble tuber or cereal starch as replacer of maltodextrin

Publication Date: 2025.08.14 ROQUETTE FRERES SA

AI summary

A highly soluble cereal or tuber starch having a content of oligosaccharides with a Degree of Polymerization (DP) of 1 and 2 of less than 7%, a water solubility of more than 90% in weight, a viscosity of less than 50 cP and an α-1,4/α-1,6 ratio between 20 to 25%, a method of preparation thereof, and its use in food applications.