Biosynthesis of Single Cell Protein (SCP) By Yeasts from Crude Chicken Waste
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Three strains of yeasts have been grown on media consisting of Chicken waste (CW) as a sole source of carbon and nitrogen in different concentrations. The nutrient medium which contains 2% CW extract was found to be the most suitable fermentation medium for growth and SCP production by S. cervisiae and S. carlsbergensis, while the medium containing 3% concentration of the waste was the most suitable for C. utilis. Candida utilis produced the highest yield of biomass (345.8 mg/100 ml) followed by S. cerevisiae (296.0 mg/100 ml) then S. carlsbergensis gave the least biomass yield, yet it produced the highest level of SCP (43.2%), followed by S. cerevisiae (36.5) then C. utilis (36.4%). The results obtained in this work insure that chicken waste could be used perfectly as a sole carbon and N source for SCP production by yeasts.
- Qatar University Science Journal - [From 1981 TO 2007] [770 items ]