Optimization of single cell protein production from Candida utilis on coffee pulp extract by continous culture system
1986
Ismayadi, C. (Balai Penelitian Perkebunan Jember (Indonesia)) | Bantacut, T. | Djatmiko, B. | Darwis, A.A. | Hardjo, S.
The production of single cell protein (SCP) from Candida utilis NRRL Y 900 on coffee pulp extract was carried out by continous culture system. The substrate concentrations of coffee pulp extract were 3, 5 and 7 percents of total soluble solids (TSS) and the dilution rates (D) were 0.12, 0.16 and 0.20 h-1. Efficiency of substrate conversion to cell yields (Yx/s), dry cell yields (Yx), productivity (P) and crude protein content have been analyzed. Yx and P increased with the increasing substrate concentrations, on the other hand Yx/s decreased. Based on Yx, P and crude protein content, the substrate concentration of 5 percents of TSS was relatively optimum. Except in P and crude protein content, the other parameter were not influenced by dilution rates. P increased with the increasing Ds. The combination of the substrate concentration of 5 percents of TSS and the dilution rate of 0.20 h-1 gave the best result of crude protein content. Based on all the parameters showed that D still under its critical value and could be increased.
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