Food processing oxidation treatment formulations and methods
AssigneeClean Chemistry, Inc.
InventorsWayne E. BUSCHMANN, Carl R. EVENSON
Life of this patent
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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.
Claims42
A method of oxidative treatment of a substrate, comprising:
- preparing a nonequilibrium treatment composition, the preparing a nonequilibrium treatment composition comprising:
- reacting components in an aqueous reaction mixture prepared from a combination of chemical feedstocks to form an aqueous nonequilibrium peracid salt composition, the chemical feedstocks comprising acyl donor with acyl donor groups, hydrogen peroxide and alkali metal hydroxide in amounts and proportions, including to account for yield losses, to prepare the nonequilibrium peracid salt composition with composition properties comprising:
- dissolved peracid anion of the peracid salt 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 reaction feedstocks comprises:
- a first molar ratio of the alkali metal hydroxide to the acyl donor groups in a range of from 0.95 to 1.40;
- and
- a second molar ratio of hydrogen peroxide to the acyl donor groups in a range of from 0.80 to 1.10;
- and
- continuing the reacting at least until the nonequilibrium peracid salt composition is prepared including the composition properties;
- contacting a food processing substrate with a nonequilibrium treatment composition, wherein the nonequilibrium treatment composition comprises:
- the nonequilibrium peracid salt composition;
- or
- a nonequilibrium adjusted composition prepared by adding one or more additives to the nonequilibrium peracid salt composition to adjust composition properties prior to the contacting.
Dependencies are inferred from the claim text.