Active Ingredient Retention in Cyclodextrin-Polysaccharide Emulsions

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Solution Overview

Problem

Existing emulsified compositions fail to effectively enhance and prolong the effect of active components in pharmaceuticals, cosmetics, and foods due to reduced content and health consciousness of consumers, necessitating a method to retain and enhance the active components.

Innovation Solution

An oil-in-water emulsion comprising water, a hydrophobic substance, and a thickening polysaccharide, such as carboxymethyl cellulose (CMC), xanthan gum, or glucomannan, is used to adhere to and absorb/adsorb active components, enhancing and prolonging their effect on animal tissues.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If the content of active component is reduced to decrease burden and increase health consciousness, then safety and healthfulness are improved, but the effect and efficacy of the active component deteriorates

Engineering Contradiction:

Improveburden on subjectsVSAvoideffect of active component

Core Design Contradiction:

Object-affected harmful factorsVSReliability

Solution Approach 1:

The patent changes the physical and chemical parameters of the delivery system by using oil-in-water emulsion with specific droplet size distribution (average 1-10 μm), cyclodextrin inclusion complexes, and thickening polysaccharides to alter how the active component is released and retained, enabling lower doses to achieve the same effect

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent employs a composite delivery system combining multiple materials: oil phase (hydrophobic substance), water phase, cyclodextrin (for inclusion complexes), and thickening polysaccharides (CMC, xanthan gum, glucomannan). This composite structure enables enhanced retention and controlled release, allowing reduced active component content while maintaining efficacy

Inventive Principle:

Principle #40Composite materials

2Ease of manufacture

If conventional emulsified compositions are used, then the formulation is simple and easy to manufacture, but the retention and prolongation of active component effect is insufficient

Engineering Contradiction:

Improveformulation simplicityVSAvoidduration of active component effect

Core Design Contradiction:

Ease of manufactureVSDuration of action of moving object

Solution Approach 1:

The patent performs preliminary actions during formulation by pre-forming cyclodextrin inclusion complexes with the active component and pre-stabilizing the oil-in-water emulsion with thickening polysaccharides before administration. This preliminary preparation ensures that the active component is already optimized for retention and controlled release, extending its duration of action

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent introduces cyclodextrin as an intermediary that forms inclusion complexes with the active component, and thickening polysaccharides as intermediaries that stabilize the emulsion and control release. These intermediary substances mediate between the active component and the biological environment, extending retention time without complicating manufacturing

Inventive Principle:

Principle #24Intermediary (Mediator)

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 emulsion effectively retains active components on tissues, enhancing and prolonging their effect by adhering and absorbing them, providing a safer and more stable delivery system.

Implementation Method 1

an oil-in-water emulsion comprising water, a hydrophobic substance, cyclodextrin, and a thickening polysaccharide

Methodology Applied

Scientific EffectThickening: Viscometer

Implementation Method 2

emulsified compositions containing fat or oil, water, cyclodextrin

Methodology Applied

Scientific EffectInclusion complex formation: Solvation

Implementation Method 3

an oil-in-water emulsion obtained by blending a hydrophobic substance, water, cyclodextrin, and a thickening polysaccharide could adhere to a tissue of an animal, hold an active component therein

Methodology Applied

Scientific EffectAdhesion: Adhesive

Implementation Method 4

absorb/adsorb and hold the active component for retention

Methodology Applied

Scientific EffectAbsorption: Absorption (physical)

Implementation Method 5

absorb/adsorb and hold the active component for retention

Methodology Applied

Scientific EffectAdsorption: Adsorption

Data Source

PatentEP4643849A1Active ingredient-retaining agent

Publication Date: 2025.11.05 HOUSE WELLNESS FOODS

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Figure 2A~2D

AI summary

An object of the present invention is to provide a novel method capable of enhancing and/or prolonging the effect of an active component. Provided is a retention agent to be used for retaining an active component, the retention agent including an oil-in-water emulsion containing water, a hydrophobic substance, cyclodextrin, and a thickening polysaccharide.