Synergistic Combinations Of Monochloramine And Organic Acid, And Methods Of Using The Same For Microbial Control
AssigneeBuckman Laboratories International, Inc.
InventorsJohn P. Buyondo, Mark L. Reed, Bernard Janse
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Abstract
Methods for controlling the growth of microorganisms in or on a product, material, or medium, such as a fermentable or fermenting medium, susceptible to attack by a microorganism, by treating with aqueous solution comprising monochloramine and at least one organic acid in a synergistically microbicidally effective combined amount to control unwanted microbial growth. Microbicidal aqueous solutions containing monochloramine and at least one organic acid in a synergistically microbicidally effective combined amount to control the growth of at least one microorganism are also described.
Claims36
A method of controlling the growth of at least one microorganism in or on a product, material, or medium susceptible to attack by a microorganism, the method comprising treating the product, material or medium with aqueous solution comprising (a) monochloramine and (b) at least one organic acid, wherein components (a) and (b) are present in a synergistically microbicidally effective combined amount to control the growth of at least one microorganism.
A method to control growth of at least one contaminant microorganism in a fermentable carbohydrate-containing feedstock comprising contacting the fermentable carbohydrate-containing feedstock with (a) monochloramine and (b) at least one organic acid, wherein components (a) and (b) are present in a synergistically microbicidally effective combined amount to control the growth of at least one contaminant microorganism in the fermentable carbohydrate-containing feedstock.
A method for producing ethanol by fermentation with controlled growth of contaminant microorganisms comprising:
- a) adding (a) monochloramine and (b) at least one organic acid to fermentable carbohydrate-containing feedstock to provide treated feedstock, wherein components (a) and (b) are present in a synergistically microbicidally effective combined amount to control the growth of at least one contaminant microorganism in the treated feedstock;
- b) fermenting the treated feedstock in the presence of yeast in a vessel to produce fermented mash comprising ethanol and a solids content;
- and
- c) distilling the fermented mash to separate at least a portion of the ethanol from stillage comprising said solids content.
An aqueous solution comprising (a) monochloramine and (b) at least one organic acid, wherein components (a) and (b) are present in a synergistically microbicidally effective combined amount to control the growth of at least one microorganism.
Dependencies are inferred from the claim text.