公开(公告)号：WO2020182976A1

公开(公告)日：2020-09-17

申请号：PCT/EP2020/056766

申请日：2020-03-13

Applicant: DUPONT NUTRITION BIOSCIENCES APS

Inventor： JEDRZEJOWSKI, Anäis ,  FREMAUX, Christophe ,  VAN DILLEN, Sabine ,  DESFOUGÈRES, Thomas ,  JODEAU, Max Charles ,  LUGAND, Damien

IPC: C12R1/46 ,  C12P7/56 ,  A23C9/12 ,  C12N9/38

Abstract: The invention relates to a polynucleotide comprising a lacZ gene ( lacZ FS ) encoding a β-galactosidase characterized by a particular profile regarding its efficiency of hydrolysis of lactose. The invention is also directed to a Streptococcus thermophilus strain comprising a lacZ FS allele and bacterial composition thereof, and their use to obtain fermented milk not undergoing post-acidification.