Oxygen indicator and package

Details Oxygen indicator and package Oxygen indicator and package

C - Chemistry, Metallurgy

12

M

C12M 1/34 (2006.01) B65D 79/02 (2006.01)

Patent

CA 2519267

An oxygen indicator which comprises an oxygen-sensitive fluid containing at least a chromophoric substrate, an oxidation-reduction enzyme and a reducing agent having a function to reduce an oxidation product of the chromophoric substrate. The oxygen indicator utilizes a reaction of the substrate with oxygen which is effected by the catalytic action of the enzyme and causes the change in the wavelength of a light absorbed by the substrate.

Un indicateur d'oxygène comprend un fluide sensible à l'oxygène contenant au moins un substrat chromophore, une enzyme d'oxydation / réduction et un agent réducteur ayant pour fonction de réduire un produit d'oxydation du substrat chromophore. L'indicateur d'oxygène utilise une réaction du substrat avec l'oxygène, qui passe par l'action catalytique de l'enzyme et provoque le changement de la longueur d'ondes d'une lumière absorbée par le substrat.

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