Production of Vitamin B12 by Propionibacterium freudenreichii Ex-situ Cell Transformation
DU Wei, XU Guo-xia, WANG Zi-qiang, WANG Yun-shan, ZHANG Li-ping, SU Zhi-guo
China Biotechnology . 2016, (4): 104 -109 .  DOI: 10.13523/j.cb.20160415