| abstract |
A warewashing composition for a machine dishwasher and a method of using it is described. The composition comprises effective amounts of an organic peroxy acid, and an amylase enzyme which, when incubated at 55 °C in a solution of 2mM sodium citrate, 1mM epsilon phthalimidoperoxyhexanoic acid in 36 ppm water at pH 8.0, has a half-life of two minutes or greater based on an activity vs. time plot obtained via monitoring color development at 405nm of solution samples incubated with p-nitrophenyl-α-D-maltoheptaoside as substrate and gluco amylase and α-glucosidase as coupled enzymes; and 1 % to 75 % by weight of a builder. A 1 % aqueous solution of the composition must have a pH of less than 10. |