Frozen chlorine dioxide-containing composition and methods related thereto
First Claim
1. A method for disinfecting a substrate using a frozen chlorine dioxide containing composition, said method comprising the following steps:
- 1) preparing an aqueous solution comprising about 0.0005% to about 0.5% by weight of metal chlorite and a sufficient protic acid concentration to lower the pH of the aqueous solution to a value of about 1.8 to about 5.0, and wherein said prepared aqueous solution has a chlorine dioxide concentration of less than about 3 ppm at all times prior to freezing;
2) freezing said prepared aqueous solution comprising metal chlorite and protic acid to form a frozen aqueous matrix composition wherein said formed frozen chlorine dioxide containing composition has a chlorine dioxide concentration of more than about 3 ppm; and
,3) contacting the substrate to be disinfected with a disinfecting amount of said formed frozen chlorine dioxide containing composition.
3 Assignments
0 Petitions
Accused Products
Abstract
A frozen chlorine dioxide-containing composition comprising a metal chlorite and a protic acid in a frozen aqueous matrix made by freezing a substantially chlorine dioxide-free aqueous solution comprising a metal chlorite at a concentration ranging from about 0.0005% to about 0.5% by weight and a protic acid at a concentration sufficient to lower the pH of the aqueous solution to a value of about 1.8 to about 5.0. The frozen chlorine dioxide-containing composition has a chlorine dioxide concentration of more than about 3 ppm, while the aqueous solution prior to freezing has a chlorine dioxide concentration less than about 3 ppm. The frozen chlorine dioxide-containing composition is used to disinfect substrates by contacting the same with the frozen chlorine dioxide-containing composition. Suitable substrates include food intended for human or animal consumption, such as meat, fish and poultry.
19 Citations
30 Claims
-
1. A method for disinfecting a substrate using a frozen chlorine dioxide containing composition, said method comprising the following steps:
-
1) preparing an aqueous solution comprising about 0.0005% to about 0.5% by weight of metal chlorite and a sufficient protic acid concentration to lower the pH of the aqueous solution to a value of about 1.8 to about 5.0, and wherein said prepared aqueous solution has a chlorine dioxide concentration of less than about 3 ppm at all times prior to freezing; 2) freezing said prepared aqueous solution comprising metal chlorite and protic acid to form a frozen aqueous matrix composition wherein said formed frozen chlorine dioxide containing composition has a chlorine dioxide concentration of more than about 3 ppm; and
,3) contacting the substrate to be disinfected with a disinfecting amount of said formed frozen chlorine dioxide containing composition. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
-
Specification