Furfural degradation and its effect on Rhodosporidium toruloides-1588 during microbial growth and lipid accumulation

[Display omitted] •A total furfural degradation of 3 g/L was observed by R. toruloides-1588.•R. toruloides-1588 degraded furfural into furfuryl alcohol and 2-furoic acid.•R. toruloides-1588 accumulated 52% w/w of lipids in the presence of 1 g/L of furfural.•R. toruloides-1588 degraded 2 g/L of furfu...

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Published in:Bioresource technology 2022-09, Vol.359, p.127496-127496, Article 127496
Main Authors: Osorio-González, Carlos S., Saini, Rahul, Hegde, Krishnamoorthy, Brar, Satinder K., Avalos Ramirez, Antonio
Format: Article
Language:English
Subjects:
Degradation
Furfural
Furfuryl alcohol
Furoic acid
Oxoglucaric acid
Rhodosporidium toruloides-1588
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Summary:[Display omitted] •A total furfural degradation of 3 g/L was observed by R. toruloides-1588.•R. toruloides-1588 degraded furfural into furfuryl alcohol and 2-furoic acid.•R. toruloides-1588 accumulated 52% w/w of lipids in the presence of 1 g/L of furfural.•R. toruloides-1588 degraded 2 g/L of furfural in absence of glucose as a carbon source. The presence of furfural in the hydrolysates obtained from lignocellulosic biomass sources represents an enormous challenge during their fermentation because furfural is a toxic compound for different microorganisms. Rhodosporidium toruloides-1588 can grow and accumulate lipids using wood hydrolysate as a substrate containing up to 1 g/L of furfural. In this study, the capacity of R. toruloides-1588 to grow and accumulate lipids using furfural without glucose in the media has been observed. R. toruloides-1588 degraded up to 3 g/L of furfural into furfuryl alcohol (1.8 g/L) and 2-furoic acid (0.9 g/L). Furthermore, R. toruloides-1588 accumulated 52% and 30% of its dry weight into lipids using YM media and YM media without glucose, respectively. Fatty acids such as palmitic, stearic and oleic were the most abundant. Finally, R. toruloides-1588 could potentially utilize furfural as a carbon source.
ISSN:0960-8524
1873-2976
DOI:10.1016/j.biortech.2022.127496