Abstract:
A method to produce percarboxylic acids and/or percarboxyl anions, such as peracetic acid and/or peracetyl anions, is described as well as use of such a system to treat or control the growth of at least one microorganism in aqueous systems such as paper and pulp manufacturing systems, cooling water towers, swimming pools, jacuzzis, hot tubs, ponds breweries, pasteurization systems and the like. The system involves reacting in an aqueous solvent, a sulfate containing reactant with an acid generating acyl activator, like tetraacetylethylenediamine, to form a product comprising percarboxylic acid and/or percarboxyl anions, like peracetic acid and/or peracetyl anions. Methods to control at least one microorganism using the system are further described.
Abstract:
Enzyme compositions that are steam stable and methods for producing the same are described. In one embodiment, the enzyme composition breaks down in the presence of water, thereby releasing the enzyme for catalytic function.
Abstract:
Methods to control organic contaminants in fibers are described. One method involves contacting the fibers with a composition containing at least one esterase or lipase or both for a sufficient time and in a sufficient amount to control the organic contaminants present in the fibers. Preferably, the fibers are recycled fibers originating from a variety of sources such as old corrugated containers, old newsprint, mixed office waste, and the like. Resulting paper products formed from the processed fibers are also described as well as methods to make them.
Abstract:
Enzyme compositions that are steam stable and methods for producing the same are described. In one embodiment, the enzyme composition breaks down in the presence of water, thereby releasing the enzyme for catalytic function.
Abstract:
Una composición enzimática estabilizada que incluya al menos un oligómero de poliamida y al menos una enzima, en la que el oligómero de poliamida esté presente en una cantidad efectiva para estabilizar la enzima y sea un polímero producto de condensación de al menos un ácido dibásico no aromático C3-C10 y al menos una diamina, que incluya como máximo 70 unidades de repetición diácido/diamina.
Abstract:
Methods to control organic contaminants in fibers are described. One method involves contacting the fibers with a composition containing at least one esterase or lipase or both for a sufficient time and in a sufficient amount to control the organic contaminants present in the fibers. Preferably, the fibers are recycled fibers originating from a variety of sources such as old corrugated containers, old newsprint, mixed office waste, and the like. Resulting paper products formed from the processed fibers are also described as well as methods to make them.
Abstract:
The present invention relates to a method to inhibit bacteria from adhering to a submergible surface. The method contacts the submergible surface with an ionene polymer and a salt of dodecylamine in a combined amount effective to inhibit bacterial adhesion to the submergible surface. The present invention also relates to a method for controlling biofouling of an aqueous system. This method adds an ionene polymer and a salt of dodecylamine in a combined amount effective to inhibit bacteria from adhering to a submerged surface within the aqueous system. This method effectively controls biofouling without substantially killing the fouling organisms. The present invention also relates to compositions containing an ionene polymer and a salt of dodecylamine and useable in the above methods. The compositions comprise an ionene polymer and a salt of dodecylamine in a combined amount effective to inhibit bacteria from adhering to submergible or submerged surfaces.
Abstract:
Methods to control organic contaminants in fibers are described. One method involves contacting the fibers with a composition containing at least one esterase or lipase or both for a sufficient time and in a sufficient amount to control the organic contaminants present in the fibers. Preferably, the fibers are recycled fibers originating from a variety of sources such as old corrugated containers, old newsprint, mixed office waste, and the like. Resulting paper products formed from the processed fibers are also described as well as methods to make them.
Abstract:
Compositions for controlling the growth of microorganisms in or on a product, material, or medium comprising synergistically effective amounts of (a) dodecylmorpholine or a salt thereof and (b) dodecylamine or a salt thereof are disclosed. Methods to control the growth of microorganisms and prevent spoilage caused by microorganisms with the use of the compositions of the present invention are also disclosed.