Full enzymatic hydrolysis of commercial sucrose laurate by immobilized-stabilized derivatives of lipase from Thermomyces lanuginosa

Sucrose laurate is a detergent that is useful for various biochemical applications because it is a green compound and is easily degradable after hydrolysis with a lipase or esterase. One problem observed in the process of sucrose laurate degradation is that most commercial detergent preparations are impure, necessitating the hydrolysis of all of the sucrose esters present in the preparation, all of them with detergent properties. In this article, a highly active catalyst, which is able to perform the hydrolysis of commercial sucrose laurate, is presented. The use of glyoxyl agarose preparations of a previously aminated Thermomyces lanuginosa lipase (TLL) enabled complete hydrolysis, in less than 30 min, of all of the compounds that comprise the mixture. In addition, this derivative is stable in the presence of 20% ethanol, which is necessary to prevent microbial contamination.

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► Commercial sucrose laurate is a mixture of several isomers.
► Thermomyces lanuginosa lipase is able to hydrolyze all these isomers of the detergent.
► Multipoint covalent immobilization greatly improves the stability of the biocatalysts.
► Hydrolysis of sucrose laurate greatly facilitates its elimination.
► Derivatives containing around 75 mg/g of catalyst were prepared.