Biological tagatose production by recombinant Escherichia coli

摘要

This invention relates to a recombinant Escherichia coli and a process for producing D-tagatose. In detail, it includes the construction of recombinant E.coli harboring L-arabinose isomerase, whole-cell conversion of D-galactose into D-tagatose by recombinant E.coli expressing L-arabinose isomerase, enzymatic production of D-tagatose by the extract of recombinant E.coli expressing L-arabinose isomerase, and bioconversion by immobilized L-arabinose isomerase.