Volatile fatty acid recovery by anaerobic fermentation from blue-green algae: Effect of pretreatment.
Bioresour Technol
; 244(Pt 2): 1433-1438, 2017 Nov.
Article
em En
| MEDLINE
| ID: mdl-28549808
ABSTRACT
The aims of this study were to quantify how pretreatment affects production of volatile fatty acids (VFAs) from cyanobacterial biomass and production of subsequent microbial lipid by an oleaginous microorganism that uses the VFAs as carbon sources. The highest biomass solubilization was obtained using thermal-alkaline (th-alkaline) pretreatment (33.1%), followed by alkaline pretreatment (29.1%), and thermal pretreatment (7.2%), but the highest VFA yield was obtained using alkaline pretreatment (0.54±0.02g/gVS), followed by the untreated condition (0.47±0.03g/gVS), and th-alkaline pretreatment (0.44±0.02g/gVS). Although VFA yield was higher using alkaline pretreatment condition than in the untreated condition, the difference was not great. However, lipid productivity by Cryptococcus curvatus after the alkaline pretreatment condition was 2.0-fold higher than that under the untreated condition. This study confirmed the feasibility of using biologically produced VFAs from cyanobacterial biomass for microbial lipid production by the oleaginous microorganism.
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Base de dados:
MEDLINE
Assunto principal:
Clorófitas
/
Ácidos Graxos Voláteis
/
Fermentação
Idioma:
En
Ano de publicação:
2017
Tipo de documento:
Article