BETA-GALACTOSIDASE AND ITS USES

Beta-galactosidase and use of it. The invention provides an enzyme that has beta-galactosidase activity, this enzyme comprising a selected sequence of between (a) a sequence of amino acids with a sequence identity of at least 85 percent with the sec sequence ID ID no: 1; and (b) an amino acid sequence coded by a nucleotide sequence that has a sequence identity of at least 85 percent with the sec sequence ID no: 2. The present invention also provides recombinant nucleotide sequences and expression constructions coding of the enzyme of the invention, as well as transformed cells. The enzyme of the invention is capable of hydrolyzing lactose, reducing its content in dairy products, as well as producing galactooligosaccharides (gos), under conditions of low and high temperature. (Machine-translation by Google Translate, not legally binding)