Shradha Kakaria
This article summarises regarding microbial transformation of steroids which contains different types like Oxidation- in which the alcohols are oxidised to form ketones, Hydroxylation- in this the mycobacterium flavobacterium dehydrogenans helps in hydrolysis, Dehydrogenation, Epoxidations which is a sparse process, Ring a Aromatization, Oxidation to ketone through hydroxylation, Ring a Aromatization ,Degradation of steroid nucleus, Oxidation of alcohols to ketone, Side chain cleavage of steroids, Decarboxylation of acids, Reduction in this the Aldehyde and ketone to alcohol, Hydrolysis, Isomerisation, Resolution of racemic mixture, Other reactions, Esterification were explained.