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Challenge Heat Stable Prevention of Flavan3-ols – Iron (II) Interactions
Heat Stable Prevention of Flavan3-ols – Iron (II) Interactions
STATUS: Awarded
Active Solvers: 194
Posted: Jul 05 2012
Challenge ID: 9932981
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The Seekers require proposals for methods of preventing chromogenic interactions between ortho-hydroxyl groups of catechins and Fe(II) in solution.

This Challenge requires only a written proposal.


Flavonoids such as catechins are naturally occurring compounds that have a range of applications and health benefits. Soluble iron is also a valuable nutrient. 

Combining catechins and Fe(II) in liquid food products during production results in interactions as the hydroxyl groups readily sequester divalent cations. This interaction is chromogenic & produces unwanted food coloration. 

A method of preventing these reactions or color formation that is efficient even at high temperature (i.e. 90-100 °C) in aqueous solution is required. 

This is a Theoretical Challenge that requires only a written proposal to be submitted.  The Challenge award will be contingent upon theoretical evaluation of the proposal by the Seeker. 

To receive an award, the Solvers will have to transfer to the Seeker their exclusive Intellectual Property (IP) rights to the solution.  However, the Seeker will be willing to consider a licensing agreement for a partial award if exclusive IP cannot be transferred by the Solver.

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What is a Theoretical IP Transfer Challenge?

An InnoCentive Theoretical Challenge builds upon an idea but is not yet a proof of concept. A solution to a Theoretical Challenge will solidify the Solver's concept with detailed descriptions, specifications and requirements necessary to bringing a good idea closer to becoming an actual product or service.

This Challenge is a Theoretical-IP Transfer Challenge, meaning that Solvers must relinquish all rights to the Intellectual Property (IP) for which they are awarded. By contrast, Theoretical-Licensing means that the Seeker is requesting non-exclusive rights to use the winning solution. For these forms of a Theoretical Challenge, Solvers that do not win retain the rights to their solution after the evaluation period is complete. The Seeker retains no rights to any IP not awarded.

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