BETA-GALACTOSIDASE DERIVED FROM BACILLUS CIRCULANS

摘要

Disclosed is a novel β-galactosidase. Specifically disclosed are a β-galactosidase derived from Bacillus circulans and a gene for the β-galactosidase. The β-galactosidase can be used, for example, in the production of milk, dairy products, fermented dairy products, galacto-oligosaccharides or supplements for foods.

主权项

1. A method for producing a product selected from the group consisting of a low-lactose milk, a galacto-oligosaccharide that is an intestinal bifidobacterium growth factor, and a medicine or supplement for patients with lactose intolerance, comprising a step to make a β-galactosidase enzyme act,
wherein the β-galactosidase comprises a polypeptide selected from the group consisting of SEQ ID NO: 7, SEQ ID NO: 8, SEQ ID NO: 9, SEQ ID NO: 10, a polypeptide having at least 90% identity to SEQ ID NO: 7, a polypeptide having at least 90% identity to SEQ ID NO: 8, a polypeptide having at least 90% identity to SEQ ID NO: 9, and a polypeptide having at least 90% identity to SEQ ID NO: 10.