Pregelatinized Starch Coating for Whiter Sugar-Free Edibles

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Solution Overview

Problem

Existing edible product coatings, particularly those using gum arabic, suffer from yellowish coloration, require titanium dioxide for opacity, and negatively impact organoleptic properties, texture, and storage stability, while lacking suitable substitutes for gum arabic in sugar-free applications.

Innovation Solution

A coating comprising pregelatinized rice, potato, or tapioca starch, optionally with up to 3.5% gum arabic, replaces conventional gum arabic, providing improved whiteness, reduced yellowness, and maintaining organoleptic properties without titanium dioxide.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If gum arabic is used as the coating matrix material, then the coating provides elasticity and viscosity, but the coating exhibits yellowish coloration requiring titanium dioxide for opacity

Engineering Contradiction:

Improvecoating elasticityVSAvoidcoating whiteness

Core Design Contradiction:

StrengthVSIllumination intensity

Solution Approach 1:

The patent changes the chemical composition parameters of the coating matrix by replacing gum arabic with pregelatinized starches (rice, potato, or tapioca starch). This substitution fundamentally alters the optical properties of the coating, eliminating the yellowish coloration inherent to gum arabic while maintaining the necessary mechanical properties through the gelatinized starch structure.

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent extracts and removes gum arabic from the coating formulation, eliminating the source of yellowish coloration. By taking out the problematic ingredient and replacing it with starch-based alternatives, the need for titanium dioxide as a whitening agent is removed, enabling clean labeling.

Inventive Principle:

Principle #2Taking out (Extraction)

2Illumination intensity

If titanium dioxide is added to the coating, then the coating achieves opacity and whiteness, but the product cannot be clean labelled due to health concerns

Engineering Contradiction:

Improvecoating opacityVSAvoidclean labeling capability

Core Design Contradiction:

Illumination intensityVSEase of manufacture

Solution Approach 1:

The patent removes titanium dioxide from the coating formulation by addressing the root cause of the opacity issue - the yellowish coloration of gum arabic. By eliminating gum arabic and replacing it with pregelatinized starches, the patent extracts the need for titanium dioxide entirely, achieving both opacity and clean labeling simultaneously.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent converts the potential harm of yellowish coloration into a benefit by using the natural white color of pregelatinized starches. This substitution transforms a cosmetic defect into an opportunity for clean labeling, where the starch-based coating provides both the necessary opacity and the health-safe profile consumers demand.

Inventive Principle:

Principle #22Blessing in disguise (Convert harm into benefit)

3Ease of manufacture

If conventional starches are used to replace gum arabic, then the coating can be clean labelled, but the starches do not provide sufficient opacity and are severely affected by yellowish coloration

Engineering Contradiction:

Improveclean labeling capabilityVSAvoidcoating opacity

Core Design Contradiction:

Ease of manufactureVSIllumination intensity

Solution Approach 1:

The patent applies parameter changes by using pregelatinized starches instead of conventional starches. The pregelatinization process modifies the starch structure to improve its functional properties in coating applications, including enhanced opacity and reduced susceptibility to yellowish coloration, while maintaining clean labeling capability.

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent employs composite material strategy by formulating the coating with specific combinations of pregelatinized starches (rice, potato, or tapioca). These starches work synergistically to provide the necessary opacity, elasticity, and color stability, creating a composite coating system that outperforms individual starch components.

Inventive Principle:

Principle #40Composite materials

4Strength

If gum arabic is used in the coating, then the coating provides good texture and elasticity, but it negatively impacts organoleptic properties and storage stability

Engineering Contradiction:

Improvecoating textureVSAvoidstorage stability

Core Design Contradiction:

StrengthVSReliability

Solution Approach 1:

The patent changes the chemical composition from gum arabic to pregelatinized starches, which fundamentally alters the coating's functional properties. The starch-based coating maintains the desired texture and elasticity through gelatinization while improving storage stability by eliminating the organoleptic degradation issues associated with gum arabic.

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentUS20260013525A1Edible product coating using pregelatinised starches

Publication Date: 2026.01.15 SUDZUCKER AG MANNHEIM OCHSENFURT

AI summary

The present invention relates to a coated edible product comprising a core and a coating, wherein the coating comprises a pregelatinized starch from rice, potato or tapioca as well as a process for the preparation of said coated edible product.