Journal
JOURNAL OF INDUSTRIAL MICROBIOLOGY & BIOTECHNOLOGY
Volume 29, Issue 5, Pages 264-267Publisher
OXFORD UNIV PRESS
DOI: 10.1038/sj.jim.7000297
Keywords
mixed cultures; SCP; irradiation; sweet potatoes; Fusarium; Saccharomyces
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Sweet potato residue, a starchy agricultural waste, was used as a substrate to produce microbial protein by Fusarium monififorme and Saccharomyces cerevisiae in submerged fermentation. Acid- and gamma-irradiation-pretreated sweet potato residue enhanced the biomass yield and protein production when the residue was fermented with F. monififorme and S. cerevisiae. A mixed culture of F. monififorme and S. cerevisiae efficiently and rapidly utilized free sugars; the maximal biomass yield (13.96 g/l) and protein production (65.8%) were obtained after 3 days fermentation. Lower carbon utilization by the two microbial strains occurred in the waste-containing media as compared to control, increasing the economic value of the waste usage.
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