title: Vitamin B12 producing fermentations of sewage sludge origin with a mixed bacterium population. I. Role of individual bacterium species in vitamin B 12  production.
mesh_terms: D001419:Bacteria / Q000145:classification / Q000166:cytology / Q000302:isolation & purification / Q000378:metabolism*; D050260:Carbohydrate Metabolism; D002498:Centrifugation; D011232:Chemical Precipitation; D002712:Chlorides; D002854:Chromatography, Paper; D003470:Culture Media; D003486:Cyanides; D004586:Electrophoresis; D005285:Fermentation; D005374:Filtration; D007501:Iron; D011110:Polymorphism, Genetic; D012722:Sewage; D012997:Solvents; D013045:Species Specificity; D014805:Vitamin B 12 / Q000032:analysis / Q000096:biosynthesis*; D014871:Water Microbiology
chemical_list: D002712:Chlorides; D003470:Culture Media; D003486:Cyanides; D012722:Sewage; D012997:Solvents; D007501:Iron; D014805:Vitamin B 12