Production of Single Cell Protein Assignment
Production of Single Cell Protein ABSTRACT
The possibility of using Koji making fermentor for, Arachniotus citrinus and Candida utilis, single cell protein (SCP) production was investigated. The MBP was produced from deoiled rice bran in 300 Kg Koji making fermentor after optimize fermentation conditions in 250 ml flasks by solid state fermentation. The A. citrinus supported maximum values of substrate to water ratio (1:2), 0.05% MgSO4.7H2O, 0.075% CaCl2. 2H2O, 0.25% KH2PO4, C:N (12:1), 1ml molasses (10% solution), 0.6 ml yeast sludge, and 2 ml corn steep liquor while 2ml molasses (10% solution) and 0.25g urea for C. utilis for maximum crude protein productivity. The SCP in the 300 Kg Koji making fermentor contained crude protein, true protein, protein gain, ether extract, ash, crude fiber, and RNA content of 30.13 %, 23.74 %, 2.97 %, 14.71 %, 6.77 %, 3.383% respectively. The dried SCP showed a gross energy value of 3675 Kcal/kg and contained increase the levels of all essential and non-essential amino acids. The results suggest that A. citrinus and C. utilis cultures can be used for the production of SCP without extensive modification in Koji making fermentor on large scale solid state fermentation.
Keywords: Solid state fermentation; Rice bran; single cell protein; Arachniotus citrinus; Candida utilis; Koji making fermentor
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