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Kinetics of growth and fatty acid production of Rhodotorula glutinis

Tipo de material: TextoTextoSeries ; Appl Microbiol Biotechnol, 37(1), p.13-17, 1992Trabajos contenidos:
  • Granger, L.M
  • Perlot, P
  • Goma, G
  • Pareilleux, A
Recursos en línea: Resumen: The effect of culture conditions, especially nitrogen/carbon (N/C)ratio and temperature, on acyl lipid profiles in the oleaginous yeast Rhodotorula glutinis NRRL Y 1091 have been investigated. Cultivation of the microorganism under N-limited conditions (N/ C<0.14 g/g)resulted in enhanced fatty acid (FA)cell content but a reduced relative amount of polyunsaturated fatty acids (PUFA). The maximal FA productivity was obtained for a 0.025 N/C ratio resulting from the arrangement between the specific rate of FA synthesis and the concentration of lipid-free biomass. Under nitrogen- non-limiting conditions, cells grown at lower temperatures had a higher PUFA content and the maximal productivity of a-linolenic acid was obtained by shifting the temperature of the culture from 30°C to 25°C
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The effect of culture conditions, especially nitrogen/carbon (N/C)ratio and temperature, on acyl lipid profiles in the oleaginous yeast Rhodotorula glutinis NRRL Y 1091 have been investigated. Cultivation of the microorganism under N-limited conditions (N/ C<0.14 g/g)resulted in enhanced fatty acid (FA)cell content but a reduced relative amount of polyunsaturated fatty acids (PUFA). The maximal FA productivity was obtained for a 0.025 N/C ratio resulting from the arrangement between the specific rate of FA synthesis and the concentration of lipid-free biomass. Under nitrogen- non-limiting conditions, cells grown at lower temperatures had a higher PUFA content and the maximal productivity of a-linolenic acid was obtained by shifting the temperature of the culture from 30°C to 25°C

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