Kvasny Prum. 1982; 28(8): 174-176 | DOI: 10.18832/kp1982036

Protein content of fodder yeasts grown at increased temperature.Peer-reviewed article

L. ADÁMEK, F. ŠTROS, M. RUT, J. RYBÁŘOVÁ

The effect of a culture temperature in a range of 30 - 39 °C on a content of the individual amino acids in biomass protein was tested with fodder yeasts Torulopsis ethanolitolerans 235 and Candida utilis 231. Experiments were performed in a mineral medium with synthetic ethanol as a carbon and energy source. It was found that the content of amino acids in biomass was not constant but was changed in dependence of culture conditions and the production strain used. The highest content of amino acids was found in the strain Candida utilis 231 at the culture temperature of 30 °C. With increased temperatures the content of amino acids in biomass decreased. With the strain Torulopsis ethanolitolerans 235 the highest rate of a synthesis of amino acids was found at 35 °C. At lower and higher temperatures the content of amino acids was decreased again. It was proved that the optimum temperatures tor the synthesis of amino acids were identical with those found tor the growth rate in both the strains tested.
(In Czech, English summary only)

Keywords: fodder yeats, Torulopsis ethanolitolerans, Candida utilis, biomass

Published: August 1, 1982