Title:
Lipid Production Capacity of Three Different Oleaginous Yeast Strains under Various Incubation Conditions
Author(s):
Steindl, D., Krennhuber, K., Jäger, A., Kahr, H.
Document(s):
Paper
Abstract:
Three oleaginous yeast strains (R. glutinis, T. fermentans, Y. lipolytica) were compared to each other at various incubation conditions to determine the most promising strain and the associated growth conditions. Different pH values and molar carbon-to-nitrogen ratios in combination with varying glucose concentrations and the addition of nutrient salts were tested. Results show that Y. lipolytica is the most promising yeast among all tested strains. The highest lipid concentration was 6.99 g L-1 at a dry cell substance of 11.9 g L-1 after 8 days of incubation at a carbon-to-nitrogen ratio of 158 without nutrient salts. Generally, a high molar carbon-to-nitrogen ratio is more beneficial for lipid accumulation. The addition of nutrient salts is not crucial for effective lipid production and in some cases even counterproductive.
Keywords:
biodiesel, cultivation, oil, yeasts
Topic:
R&D on Processes for Solid, Liquid and Gaseous Fuels from Biomass
Subtopic:
Oil-based biofuels
Event:
21st European Biomass Conference and Exhibition
Session:
3CV.1.36
Pages:
1488 - 1491
ISBN:
978-88-89407-53-0
Paper DOI:
10.5071/21stEUBCE2013-3CV.1.36
Price:
FREE
