METHOD OF GENERATING CARBONATE IN SITU IN A USE SOLUTION AND OF BUFFERED ALKALINE CLEANING UNDER AN ENRICHED CO2 ATMOSPHERE

摘要

The invention is directed to methods of generating carbonate in situ in a use solution under an enriched CO2 atmosphere. In another aspect, the invention is directed to methods of cleaning food processing surfaces under an enriched CO2 atmosphere comprising contacting a food processing surface with a cleaning composition comprised of an alkalinity source, a surfactant, and water, monitoring the pH during the wash cycle and adjusting the pH by recirculating a use solution, adding a secondary alkalinity source, or both recirculating a use solution and adding a secondary alkalinity source, to generate carbonate in situ in the use solution. In a particular embodiment of the invention the alkalinity source is an alkali metal carbonate and the secondary alkalinity source is an alkali metal hydroxide.

主权项

1. A method of cleaning a brewery surface with a carbonate use solution comprising:
forming a cleaning composition comprising:
(a) a carbonate-based alkalinity source present between about 0.5 wt % and about 2 wt. %,(b) a surfactant present between about 0.01 wt. % and about 2 wt. %,(c) an enzyme composition present between about 0.035 wt. % and about 1.75 wt. %;(d) water; applying said cleaning composition to the brewery surface as a use solution under an enriched CO2 atmosphere monitoring the use solution during the wash cycle; adjusting the pH of the use solution to maintain it between about 8 and about 12; and generating carbonate in situ in the use solution.