Bouillon Tablet Particle Size Optimization

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Solution Overview

Problem

Conventional bouillon tablets have a natural appearance issue, limited visibility of herbs and spices, and problems with disintegration time and crumbliness, which affect consumer perception and product usability.

Innovation Solution

A bouillon tablet composition comprising 20-70 wt% crystalline salt, 10-70 wt% pieces of plant material, and up to 15 wt% crystalline sugar, with specific particle size ranges and a process involving mixing, adjusting water content, forming, and drying, to achieve a more natural appearance, faster disintegration, and desired hardness.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Shape

If conventional pressed bouillon tablets are manufactured with powdered ingredients, then the tablets have standardized form and compact structure, but the ingredients are not visible and appearance is un-natural

Engineering Contradiction:
Improvetablet formVSAvoidvisibility of ingredients
Core Design Contradiction:
ShapeVSIllumination intensity

Solution Approach 1:

The patent changes the particle size parameter of ingredients from fine powder to coarse particles (0.5-3.5mm for salt, 0.5-3.5mm for sugar, 0.7-9.0mm for plant material). This parameter change makes ingredients visible while maintaining tablet form, resolving the contradiction between standardized shape and ingredient visibility.

Inventive Principle:
Principle #35Parameter changes

2Stability of the object's composition

If pressed bouillon tablets are made with fine powdered ingredients, then the tablets have uniform structure, but disintegration time is slow and crumbliness is poor

Engineering Contradiction:
Improvetablet structureVSAvoiddisintegration time
Core Design Contradiction:
Stability of the object's compositionVSLoss of time

Solution Approach 1:

The patent segments the tablet into coarse particles of different ingredients (salt, sugar, plant material) with sizes between 0.5-9.0mm. This segmentation creates a structure that maintains tablet integrity for packaging but disintegrates faster in water, resolving the contradiction between structural stability and disintegration speed.

Inventive Principle:
Principle #1Segmentation

3Illumination intensity

If higher amounts of plant material are added to bouillon tablets, then the natural appearance and ingredient visibility improve, but the tablet hardness decreases

Engineering Contradiction:
Improvevisibility of plant materialVSAvoidtablet hardness
Core Design Contradiction:
Illumination intensityVSStrength

Solution Approach 1:

The patent applies local quality by using coarse particles (0.7-9.0mm) for plant material specifically, rather than uniformly fine powder throughout. This localized coarse structure in plant material regions provides both visibility and structural support, resolving the contradiction between ingredient visibility and tablet hardness.

Inventive Principle:
Principle #3Local quality

4Strength

If bouillon tablets are made with fat binding systems to ensure hardness, then the tablets maintain structural integrity, but the product contains unwanted fats and oils

Engineering Contradiction:
Improvetablet hardnessVSAvoidunwanted fats and oils
Core Design Contradiction:
StrengthVSObject-generated harmful factors

Solution Approach 1:

The patent extracts and removes the fat binding system from the formulation entirely. Instead of using fats or oils as binders, the invention relies on coarse particle friction and interlocking (0.5-9.0mm particles) to maintain tablet structure, eliminating unwanted fats while preserving hardness.

Inventive Principle:
Principle #2Taking out (Extraction)

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 solution results in a bouillon tablet that looks more natural with visible ingredients, has a faster disintegration time compared to standard tablets, maintains sensory properties over 12 months, and meets the required hardness and crumbliness criteria.

Implementation Method 1

drying the bouillon tablet

Methodology Applied
Scientific EffectDrying: Desiccation

Data Source

PatentEP3917337B1Bouillon tablet
Publication Date: 2025.01.22 SOCIETE DES PRODUITS NESTLE SA
  • EP3917337B1 patent drawingFigure 1
  • EP3917337B1 patent drawing

AI summary

The invention relates to a bouillon tablet comprising 20-70 wt% crystalline salt, up to 15 wt% crystalline sugar and 10-70 wt% pieces of plant material, wherein the crystalline salt has a median particle diameter Dv50 in the range of 0.7 to 3.5 mm, wherein the crystalline sugar has a median particle diameter Dv50 in the range of 0.5 to 3.5 mm and the pieces of plant material have a median particle diameter Dv50 in the range of 0.7 to 9.0 mm.