Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4996984 | Bioresource Technology | 2017 | 6 Pages |
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 ± 0.02 g/g VS), followed by the untreated condition (0.47 ± 0.03 g/g VS), and th-alkaline pretreatment (0.44 ± 0.02 g/g VS). 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.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Process Chemistry and Technology
Authors
Hyun Uk Cho, Hye Gyeong Kim, Young Mo Kim, Jong Moon Park,