Ion Chelator-Modified Packaging Materials for Oxidation Inhibition
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Solution Overview
Problem
Existing methods for inhibiting oxidation in packaged products, such as adding antioxidants or metal chelators, often compromise the integrity of the product, are costly, or inefficient, and require complex equipment, especially for liquid products.
Innovation Solution
Development of packaging materials with ion chelators covalently attached to the surface, which sequester ions and prevent oxidative reactions without migrating into the product, maintaining its integrity and effectiveness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If antioxidants or metal chelators are added directly to the product formulation, then oxidation is inhibited, but the integrity of the product as an 'all natural' product is destroyed
Solution Approach 1:
The packaging system is divided into two separate components: the packaging material itself and the product content. The ion chelating functionality is integrated into the packaging material structure, while the product remains free of added chemicals, thus maintaining product integrity while achieving oxidation inhibition.
Solution Approach 2:
The packaging material acts as an intermediary between the product and the oxidizing environment. Ion chelators attached to the packaging material sequester metal ions that would otherwise catalyze oxidation of the product, providing protection without direct contact or mixing with the product formulation.
2Reliability
If radical scavengers are blended into the packaging material, then oxidation is reduced, but the bulk material properties are adversely impacted and manufacturing stability is poor
Solution Approach 1:
The ion chelating functionality is localized to the surface or specific regions of the packaging material where it contacts the product, rather than being uniformly distributed throughout the bulk material. This allows oxidation protection at the interface while preserving the bulk material's mechanical and processing properties.
Solution Approach 2:
The packaging material is designed as a composite structure combining the base packaging material with a surface layer or coating containing ion chelators. This composite approach provides both the protective functionality and the structural integrity needed for manufacturing stability.
3Reliability
If oxygen absorbing sachets are included in the package, then oxygen content is reduced, but the packaging equipment becomes complicated and the solution is inefficient for liquid products
Solution Approach 1:
The oxidation protection functionality is merged directly into the packaging material structure itself, eliminating the need for separate oxygen-absorbing sachets or additional components. The ion chelator-modified packaging material provides protection through a single integrated system.
Solution Approach 2:
The packaging material provides its own oxidation protection capability through the ion chelating functionality built into its structure, making the system self-sufficient without requiring external oxygen-absorbing components or complex packaging equipment.
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 ion chelator-modified packaging materials effectively inhibit lipid oxidation, nutrient loss, and color degradation in various products, including food and cosmetics, while maintaining the product's natural status and stability.
Implementation Method 1
ion chelators covalently attached to at least one side of the material... sequester ions and prevent oxidative reactions
Data Source
AI summary
The invention described herein provides a modified material is a packaging material in which, at least one side, the product contact side, has been modified to sequester ions in order to prevent the ions from being available to promote degradative reactions in biological or chemical products such as food, beverages, pharmaceuticals, neutraceuticals, cosmetics, paints and chemicals. The invention described herein also includes methods of making the packaging materials and methods of using the packaging materials for preserving the integrity of biological and chemical compounds.