Non-micellar Iron-casein Complex for Oxidation Control
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Solution Overview
Problem
Iron compounds used for food fortification often cause oxidation of sensitive compounds like LC-PUFAs, vitamins, and polyphenols, leading to degradation in nutritional value and sensory properties, with existing solutions either being expensive or specific to certain food matrices and lacking in bioavailability and solubility.
Innovation Solution
A non-micellar iron-casein complex comprising exogenous iron and orthophosphorus is used as an iron source, which minimizes oxidation of sensitive compounds while providing high bioavailability and solubility, preventing the formation of precipitates and maintaining sensory attributes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional iron compounds (e.g., ferrous sulphate) are used for fortification, then bioavailability is improved, but oxidation of sensitive compounds (LC-PUFAs, vitamins, polyphenols) increases
Solution Approach 1:
The patent uses casein as an intermediary substance to complex with iron, creating an iron-casein complex that mediates between the need for bioavailable iron and the need to prevent oxidation. The casein molecule acts as a carrier that delivers iron to the body while simultaneously protecting sensitive compounds from oxidative damage by iron.
Solution Approach 2:
The invention creates a composite material system consisting of iron-casein complexes that combine the benefits of both iron supplementation and oxidation protection. This composite approach allows the system to simultaneously provide high bioavailability while preventing the harmful oxidative effects that occur with conventional iron compounds.
2Quantity of substance
If iron compounds are added to protect against iron deficiency, then nutritional value is improved, but sensory properties deteriorate due to oxidation
Solution Approach 1:
Casein serves as a protective intermediary that allows iron to be present in the formulation without directly interacting with and oxidizing sensitive compounds. This intermediary mechanism enables the maintenance of both adequate iron content and acceptable sensory properties throughout the product shelf-life.
3Quantity of substance
If existing iron sources are used, then fortification is achieved, but solubility and bioavailability are reduced due to precipitate formation
Solution Approach 1:
The patent changes the chemical parameters of iron by converting it into an iron-casein complex form. This parameter change transforms iron from a state that causes precipitation and reduced solubility into a stable, soluble complex that maintains both fortification effectiveness and compositional stability in the final product.
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 non-micellar iron-casein complex effectively reduces oxidation of LC-PUFAs, vitamins, and polyphenols, maintaining nutritional and sensory quality, with bioavailability comparable to ferrous sulphate and without forming insoluble precipitates, thus addressing the limitations of existing iron sources.
Implementation Method 1
a non-micellar iron-casein complex comprising exogenous iron, casein and exogenous orthophosphorus
Data Source
AI summary
The present invention relates to a composition comprising compounds sensitive to oxidation and at least one iron-casein protein complex, wherein the complex is a non-micellar iron-casein complex comprising exogenous iron, casein and exogenous orthophosphorus. Such iron-casein complex advantageously does not cause significant oxidation of sensitive compounds such as LC-PUFAs, vitamins and polyphenols.