Effects of Different Oil Sources and Residues on Biomass and Metabolite Production by Yarrowia lipolytica YB 423-12

Yarrowia lipolytica is known to have the ability to assimilate hydrophobic substrates like triglycerides, fats, and oils, and to produce single-cell oils, lipases, and organic acids. The aim of the present study was to investigate the effects of different oil sources (borage, canola, sesame, Echium,...

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Bibliographic Details
Published in:Journal of the American Oil Chemists' Society 2014-09, Vol.91 (9), p.1521-1530
Main Authors: Saygün, Ayşe, Şahin-Yeşilçubuk, Neşe, Aran, Necla
Format: Article
Language:English
Subjects:
Agriculture
Biomass
Biomaterials
bioprocessing
Biotechnology
borage oil
Borago officinalis
canola
Chemistry
Chemistry and Materials Science
Citric acid
Echium
Food Science
glucose
hazelnut oil
hydrophobicity
Industrial Chemistry/Chemical Engineering
industry
Linseed oil
Lipase
Lipid accumulation
Lipids
Metabolites
Oils & fats
oilseed cakes
olive oil
Original Paper
raw materials
renewable resources
Single‐cell oil
sunflower oil
triacylglycerols
trout
wastes
Yarrowia lipolytica
Yeast
yeasts
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Summary:Yarrowia lipolytica is known to have the ability to assimilate hydrophobic substrates like triglycerides, fats, and oils, and to produce single-cell oils, lipases, and organic acids. The aim of the present study was to investigate the effects of different oil sources (borage, canola, sesame, Echium, and trout oils) and oil industry residues (olive pomace oil, hazelnut oil press cake, and sunflower seed oil cake) on the growth, lipid accumulation, and lipase and citric acid production by Y. lipolytica YB 423-12. The maximum biomass and lipid accumulation were observed with linseed oil. Among the tested oil sources and oil industry residues, hazelnut oil press cake was the best medium for lipase production. The Y. lipolytica YB 423-12 strain produced 12.32 ± 1.54 U/mL (lipase activity) of lipase on hazelnut oil press cake medium supplemented with glucose. The best substrate for citric acid production was found to be borage oil, with an output of 5.34 ± 0.94 g/L. The biotechnological production of valuable metabolites such as single-cell oil, lipase, and citric acid could be achieved by using these wastes and low-cost substrates with this strain. Furthermore, the cost of the bio-process could also be significantly reduced by the utilization of various low-cost raw materials, residues, wastes, and renewable resources as substrates for this yeast.
ISSN:0003-021X
1558-9331
DOI:10.1007/s11746-014-2506-2