Production of Vitamin B12 by Pseudomonads Isolated from Sago Waste

Cobalamin (vitamin B12) is the largest B vitamin and was the last one to be isolated in 1948 by Dr E. Lester Smith in the UK from liver. It is a red crystalline substance. It had been known as early as 1926, that something in raw liver was a treatment for anaemia. Vitamin B12 is very important in the diet because they are of great value in growth and metabolism of the living cell. In order to meet the growing demands, commercial production process for vitamin B12 were employed. Microorganisms most commonly employed for the production of vitamin B12 are Propionoibacterium shermanii, Propionoibacterium freudenreichii and Pseudomonas denitrificans. This book deals with the production of Vitamin b12 by Pseudomonads isolated from sago waste