摘要:
A perhydrolysis system or activated oxidant system for in situ generation of peracid in aqueous solutions is disclosed, including: (a) a protease enzyme; (b) an ester substrate having the structure
wherein R = C 1-11 -alkyl, R = C 1-10 -alkyl or H, Z = 0 or
a polyalkoxy residue of the formula (CH 2 CH 2 0) m or
wherein m = 0-10, r=0 or 1; R and R optionally having OH-substituents pendant on or terminating the hydrocarbyl chains, and (c) a source of peroxygen capable of reacting with the protease (a) and the ester substrate (b) to result in proteolytic production of of peracid.
摘要翻译:公开了用于在水溶液中原位产生过酸的过水解系统或活化氧化剂系统,包括:(a)蛋白酶; (b)具有结构R min(Z)@(CH 2) - -OR的酯底物,其中R = C 1-11烷基,R min = C 1-10 - 烷基或H,Z = O或多烷氧基残基 式(CH 2 CH 2 O)m或其中m = 0-10,r = 0或1; R和R min任选地具有挂在烃基链上或端基上的OH取代基,和(c)能够与蛋白酶(a)和酯底物(b)反应的过氧源,导致过酸的蛋白水解产生。
摘要:
An enzymatic perhydrolysis system, useful for bleaching, has a novel enzyme, a substrate, and a source of hydrogen peroxide, and provides in situ formation of peracid in aqueous solution. The substrate is selected for enzyme catalyzed reaction, and preferably is an acylglycerol with two or three fatty acid chains. The enzyme is hydrolytically and perhydrolytically active even in the presence of anionic surfactants, has lipase acitivity, and is isolatable from Pseudomonas putida ATCC 53552.
摘要:
A perhydrolysis system or activated oxidant system for in situ generation of peracid in aqueous solutions is disclosed, including: (a) a protease enzyme; (b) an ester substrate having the structure wherein R = C 1-11 -alkyl, R = C 1-10 -alkyl or H, Z = 0 or a polyalkoxy residue of the formula (CH 2 CH 2 0) m or wherein m = 0-10, r=0 or 1; R and R optionally having OH-substituents pendant on or terminating the hydrocarbyl chains, and (c) a source of peroxygen capable of reacting with the protease (a) and the ester substrate (b) to result in proteolytic production of of peracid.
摘要:
An enzymatic perhydrolysis system, useful for bleaching, has a novel enzyme, a substrate, and a source of hydrogen peroxide, and provides in situ formation of peracid in aqueous solution. The substrate is selected for enzyme catalyzed reaction, and preferably is an acylglycerol with two or three fatty acid chains. The enzyme is hydrolytically and perhydrolytically active even in the presence of anionic surfactants, has lipase acitivity, and is isolatable from Pseudomonas putida ATCC 53552.
摘要:
An enzymatic perhydrolysis system, useful for bleaching, has a novel enzyme, a substrate, and a source of hydrogen peroxide, and provides in situ formation of peracid in aqueous solution. The substrate is selected for enzyme catalyzed reaction, and preferably is an acylglycerol with two or three fatty acid chains. The enzyme is hydrolytically and perhydrolytically active even in the presence of anionic surfactants, has lipase acitivity, and is isolatable from Pseudomonas putida ATCC 53552.