caa a22 4500 465824447 CHVBK 20180323112145.0 cr unu---uuuuu 170327e19900701xx s 000 0 eng 10.1007/BF00176669 doi (NATIONALLICENCE)springer-10.1007/BF00176669 Conversion of fat into yeast biomass in protein-containing waste-water [Elektronische Daten] [Stefan Rydin, Göran Molin, Inge Nilsson] Summary: Candida tropicalis S001 was grown on the lipid fraction of a protein-containing waste-water in order to (i) remove fat from the water, and (ii) produre yeast biomass for feed. The yeast cells were separated from the waste-water by sedimentation. Defatted waste-water was used for methane production and gave a yield of a 0.3 m3 methane/kg reduced chemical oxygen demand. The maximum specific growth rate (µmax) of C. tropicalis growing on waste-water fat at pH 4.0 was 0.35 h−1; the fat content was decreased from 8 g/l to about 0.1 g/l within 24 h. In continous culture a corresponding reduction was maintained at dilution rates up to 0.36 h−1. The effect on growth of pH, temperature and CO2 concentration was studied with triolein as the major carbon source. The µmax was nearly constant (0.16 h−1) in the pH and temperature range of 3.2-4.0 and 30°-38° C, respectively; 10% CO2 was optimal for growth. Growth on triolein resulted in a biomass yield of 0.70 g dry weight/g fat. Springer-Verlag, 1990 Rydin Stefan Department of Applied Microbiology, Lund Institute of Technology, Chemical Center, P. O. Box 124, S-22100, Lund, Sweden aut Molin Göran Department of Applied Microbiology, Lund Institute of Technology, Chemical Center, P. O. Box 124, S-22100, Lund, Sweden aut Nilsson Inge Department of Applied Microbiology, Lund Institute of Technology, Chemical Center, P. O. Box 124, S-22100, Lund, Sweden aut Applied Microbiology and Biotechnology Springer-Verlag 33/4(1990-07-01), 473-476 0175-7598 33:4<473 1990 33 253 https://doi.org/10.1007/BF00176669 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00176669 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Rydin Stefan Department of Applied Microbiology, Lund Institute of Technology, Chemical Center, P. O. Box 124, S-22100, Lund, Sweden aut NATIONALLICENCE 700 1- Molin Göran Department of Applied Microbiology, Lund Institute of Technology, Chemical Center, P. O. Box 124, S-22100, Lund, Sweden aut NATIONALLICENCE 700 1- Nilsson Inge Department of Applied Microbiology, Lund Institute of Technology, Chemical Center, P. O. Box 124, S-22100, Lund, Sweden aut NATIONALLICENCE 773 0- Applied Microbiology and Biotechnology Springer-Verlag 33/4(1990-07-01), 473-476 0175-7598 33:4<473 1990 33 253 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer