Oxygen removal
AssigneeThe Pillsbury Company
InventorErnst Graf
Life of this patent
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Abstract
An oxygen scavenging composition for use with foods, cosmetics, and pharmaceuticals comprising a combination of a metal that can exist in two redox states at ambient conditions, and a radical oxygen scavenger. The oxygen scavenging system is also effective in inhibiting the growth of yeasts, molds, and most aerobic bacteria.
Claims18
In the method of protecting an ingestible product from oxygen degradation comprising introducing the ingestible product into a substantially non oxygen-permeable package in conjunction with an oxygen scavenging composition which is also disposed within the package, the improvement wherein said oxygen scavenging composition comprises a solution of a reducing agent and a dissolved species of copper, wherein said oxygen scavenging composition is present in an amount so as to provide, with respect to the total product within the package, from about 1 to 7 parts per millions of copper.
Dependencies are inferred from the claim text.