Synthesis of vitamin B12 by actinomycetes isolated from forest soils and its occurrence in wild animals feces

A total of 16 actinomycetes were isolated from vegetative soil samples of Nallamala forest and screened for their efficiency for the production of vitamin B12.Among the 16 actinomycetes, Streptomyces DVB1 (1.328i­g/ ml) and StreptomycesDVB11 (1.217i­g/ml) yielded higher titers of vitamin B12. In addition to this, various animalsÂ’ fecal samples were screened and found highest content of vitamin B12 in tiger feceswith 1.057i­g/mg of fecal matter.