Bouillon Tablet Preparation with Humid Native Starch Binding

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Solution Overview

Problem

Existing bouillon tablet manufacturing processes face challenges in binding ingredients without using fat, particularly with hygroscopic amorphous ingredients, leading to issues like crust formation, lumps, and undesirable texture changes, especially when using maltodextrin, which is not commonly found in domestic kitchens.

Innovation Solution

Incorporating humid native starch with a moisture content of 19-21% and a water activity of 0.4-0.6 into the bouillon tablet composition to activate hygroscopic amorphous ingredients, eliminating the need for maltodextrin and ensuring efficient binding without solid-solid interactions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If hygroscopic amorphous ingredients are used to bind bouillon tablet ingredients without fat, then the nutritional quality is improved, but crust formation and lumps occur during mixing

Engineering Contradiction:
Improvebinding qualityVSAvoidhomogeneity of mixture
Core Design Contradiction:
ReliabilityVSManufacturing precision

Solution Approach 1:

Humid native starch acts as an intermediary substance between water and hygroscopic amorphous ingredients. The starch granules absorb water and swell, creating a humid environment that gradually activates the binding properties of hygroscopic ingredients without causing sudden crust formation or lumps during mixing

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The invention changes the moisture content parameter of native starch to 19-21%, creating humid native starch with specific water activity (0.4-0.6). This parameter control allows gradual water release and activation of binding agents, preventing premature crust formation while ensuring proper binding

Inventive Principle:
Principle #35Parameter changes

2Reliability

If maltodextrin is used as a binding agent, then the binding efficiency is improved, but the ingredient becomes less familiar to consumers and may cause undesirable texture evolution

Engineering Contradiction:
Improvebinding efficiencyVSAvoidconsumer acceptance
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The invention replaces maltodextrin with native starch that has been modified only by controlling its moisture content (19-21%) and water activity (0.4-0.6). This parameter-based modification maintains the functional properties needed for binding while using a familiar, naturally occurring ingredient that consumers recognize and accept

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The invention uses native starch, a common and inexpensive kitchen ingredient, instead of specialized additives like maltodextrin. This substitution reduces manufacturing costs and improves consumer acceptance while achieving the required binding efficiency through controlled humidity rather than chemical modification

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

3Reliability

If water is added directly to activate hygroscopic amorphous ingredients, then the binding activation is improved, but crust formation and lumps occur requiring mixer shutdown

Engineering Contradiction:
Improveactivation of binding agentsVSAvoidcontinuous mixing capability
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The invention performs preliminary action by pre-humidifying native starch to 19-21% moisture content before adding it to the mixture. This pre-prepared humid starch gradually releases water to activate hygroscopic binding agents during the mixing process, enabling continuous operation without crust formation or lumps that would require shutdown

Inventive Principle:
Principle #10Preliminary 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

This approach allows for faster moisture transfer, reduces manufacturing costs, and prevents undesirable texture changes such as post-hardening, ensuring a minimum hardness for easy handling and dissolution.

Implementation Method 1

This surprisingly allows for a faster moisture transfer

Methodology Applied
Scientific EffectMoisture transfer: Diffusion

Implementation Method 2

These are activated in the bouillon mixture by the addition of water

Methodology Applied
Scientific EffectHygroscopic absorption: Absorption (physical)

Data Source

PatentEP3742907B1Process for preparing a bouillon tablet
Publication Date: 2025.08.20 SOCIETE DES PRODUITS NESTLE SA
  • EP3742907B1 patent drawingFigure 1
  • EP3742907B1 patent drawingFigure 2

AI summary

The present invention relates to bouillon tablets, in particular to a process for preparing a bouillon tablet. The process comprises mixing an ingredient composition comprising crystalline ingredients, hygroscopic amorphous ingredients, humid native starch and less than 10 % fat, pressing the ingredient composition into a tablet and packaging the tablet.