Oral preparation

Abstract

The present invention relates to an oral composition comprising a volatile sulphur compound breath-odour controlling amount of methyl mercaptan oxidase. The oral composition may be used in a method for controlling breath-odour in a host, which method comprises applying the composition to the oral cavity of that host. The invention also provides a polypeptide having methyl mercaptan oxidase activity, wherein said polypeptide is: (a) a polypeptide comprising an amino acid sequence as set out in SEQ ID NO: 2; (b) a polypeptide comprising an amino acid sequence having at least 50% sequence identity with the amino acid sequence of SEQ ID NO: 2; (c) a polypeptide encoded by a polynucleotide comprising the polynucleotide sequence as set out in SEQ ID NO: 1 or SEQ ID NO: 3; or (d) a fragment of a polypeptide as defined in (a), (b) or (c).

Dependencies are inferred from the claim text.