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Lipid production from fed-batch fermentation of crude glycerol directed by the kinetic study of batch fermentations.

Chen, Jiaxin; Zhang, Xiaolei; Yan, Song; Tyagi, Rajeshwar Dayal; Drogui, Patrick (2017). Lipid production from fed-batch fermentation of crude glycerol directed by the kinetic study of batch fermentations. Fuel , vol. 209 . p. 1-9. DOI: 10.1016/j.fuel.2017.07.070.

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Résumé

Oleaginous yeast Trichosporon oleaginosus was cultivated in crude glycerol as substrate for lipid production in a 15 L fermenter. The impact of weight carbon to nitrogen ratio (C/N) including 20, 30, 45 and 60 on lipid production from the strain was investigated in batch fermentations. The highest biomass and lipid concentration of 24.80 g/L and 12.14 g/L, respectively was observed during the fermentation at C/N ratio of 45. C/N ratio of 30 showed a comparable concentration of biomass (23.70 g/L) and lipid (11.26 g/L). Based on the kinetic study of the batch fermentations, fed-batch fermentation was designed and conducted. In the fed-batch fermentation, the maximum concentration of biomass and lipid was 43.82 g/L and 21.87 g/L, respectively at C/N ratio of 45.

Type de document: Article
Mots-clés libres: oleaginous yeast; crude glycerol; C/N ratio; kinetic study; fed-batch
Centre: Centre Eau Terre Environnement
Date de dépôt: 08 mai 2018 13:54
Dernière modification: 08 mai 2018 13:54
URI: http://espace.inrs.ca/id/eprint/6494

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