Food processing oxidation treatment forumlations and methods
OwnerWayne E. Buschmann, Carl R. Evensoninventors
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Abstract
A method for oxidation of substrates uses peracid salt compositions prepared from acyl donor, hydrogen peroxide and alkali metal hydroxide under controlled conditions to provide nonequilibrium compositions at high product yield from input feedstocks, and which are surprisingly stable prior to use. Substrates to be oxidized are contacted with a nonequilibrium treatment composition comprising such a nonequilibrium composition or a nonequilibrium adjusted composition prepared by adding one or more additives to the nonequilibrium composition prior to contacting the substrate, wherein the substrates are associated with food processing.
Claims30
A method of oxidative treatment of a food processing substrate, comprising:
- preparing a nonequilibrium peracetic acid salt composition;
- and
- contacting a food processing substrate with an aqueous nonequilibrium treatment composition, wherein the nonequilibrium treatment composition comprises:
- the nonequilibrium peracetic acid salt composition without an additive to adjust composition properties prior to the contacting;
- or
- a nonequilibrium adjusted composition prepared by combining one or more additives with the nonequilibrium peracetic acid salt composition prior to the contacting;
- and
- wherein the preparing the nonequilibrium peracetic acid salt composition comprises:
- reacting components in an aqueous reaction mixture prepared from a combination of chemical feedstocks to form the nonequilibrium peracetic acid salt composition, the chemical feedstocks comprising acetyl donor with acetyl donor groups, hydrogen peroxide and alkali metal hydroxide in amounts and proportions, including to account for yield losses, to prepare the nonequilibrium peracetic acid salt composition with composition properties comprising:
- dissolved peracetate anion at a concentration in a range of from 1.0% (weight/volume) to 8.0% (weight/volume);
- and
- pH in a range of from pH 12.0 to pH 13.5;
- and
- wherein the combination of chemical feedstocks comprises:
- a first molar ratio of the alkali metal hydroxide to the acetyl donor groups in a range of from 0.95 to 1.40;
- and
- a second molar ratio of hydrogen peroxide to the acetyl donor groups in a range of from 0.80 to 1.10;
- and
- continuing the reacting at least until the nonequilibrium peracetic acid salt composition is prepared including the composition properties.
Dependencies are inferred from the claim text.