Abstract
The study was carried out to utilize alkali treated corn cob as a substrate for single cell protein production by Arachniouts sp. The maximum crude protein (18.87 %) was obtained after 96 hr of continuous shaking (120 rpm) fermentation of 2% NaOH treated corn cob by Arachniotus sp. The optimum culture medium of alkali treated corn cob (3%) contained (g/lOO ml): urea, 2; CaCI2• 2Hp, 0.05; MgS04 • 7Hp 0.10: and KH2 P04 0.3. Crude protein content of alkali treated corn cob (inherently containing 3.2% crude protein) was found to increase up to Ilun'YoI within four days. This biomass product may be used as a protein supplement in the poultry and livestock ,rations which :c presently arc very costly due to the use of conventional ingredients such as oilseed cakes. Key words: Arachniotus sp., corn cob, single cell protein
