supported by Natural Science Foundation of Shandong Province(ZR2021QC160);Key Research and Development Program of Shandong Province(2020CXGC010602);Science and Technology Support Plan for Young People in Colleges and Universities of Shandong Province(2020KJE005).
A new strain of Lactococcus lactis producing D-tagatose was isolated and identified.Its L-arabinose isomerase coding gene was cloned and expressed in Escherichia coli BL21(DE3).The optimal temperature and pH of the pu...