Azotobacter is a group of Gram negative, free-living, nitrogen fixing aerobic bacteria inhabiting in the soil. They are oval or spherical in shape and form thick-walled cysts (dormant cells resistant to deleterious conditions) under unfavorable environmental conditions.
Azotobacter
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Properties
Azotobacter is a group of Gram negative, free-living, nitrogen fixing aerobic bacteria inhabiting in the soil. They are oval or spherical in shape and form thick-walled cysts (dormant cells resistant to deleterious conditions) under unfavorable environmental conditions.
Application
Production of Azotobacter in small bioreactor. For fermentation, 1 L N-free media (2 g sucrose, 0.06 g K2HPO4, 0.016 g KH2PO4, 0.02 g NaCl, 0.02 g MgSO4, 0.05 g yeast extract, 0.01 g K2SO4, pH 7) was prepared in 1 L bioreactor. 50 ml Azotobacter (SR-4) inoculum, maintained in N-free media, was transferred to bioreactor.
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