Phage resistance
AssigneeDanmarks Tekniske Universitet
InventorsJakob Brandt Borup Haaber, Sylvain Moineau, Karin Hammer
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Abstract
The present invention relates to the field of dairy science. In particular, the present invention relates to methods for improving dairy starter culture quality as well as food products that can be obtained using such methods.
Claims26
A starter culture composition comprising a Lactococcus lactis bacterium comprising a recombinant expression vector, wherein said vector encodes a polypeptide with at least 70% identity with SEQ ID NO 1 or a fragment thereof with a size of least 100 amino acids, wherein expression of said polypeptide confers at least one phage resistance mechanism to said Lactococcus lactis bacterium.
A method of improving phage resistance in a Lactococcus lactis bacterium comprising providing a Lactococcus lactis bacterium with an isolated polynucleotide sequence that encodes a polypeptide with at least 70% identity with SEQ ID NO 1 or a fragment thereof with a size of least 100 amino acids.
A phage resistant Lactococcus lactis bacterium comprising pGhost9::ISS1 and a polynucleotide sequence encoding SEQ ID NO 1.
A composition comprising a Lactococcus lactis bacterium that comprises a recombinant expression vector, wherein said vector encodes a polypeptide with at least 70% identity with SEQ ID NO 1 or a fragment thereof with a size of least 100 amino acids, wherein expression of said polypeptide confers at least one phage resistance mechanism to said Lactococcus lactis bacterium.
Dependencies are inferred from the claim text.