Lipid production from Jerusalem artichoke by Rhodosporidium toruloides Y4.
Jerusalem artichoke (JA) is a perennial herbaceous plant widely available as non-grain raw material. Microbial lipid has been suggested as a potential feedstock for large scale biodiesel production. This paper describes lipid production using JA tuber processed by oleaginous yeast Rhodosporidium toruloides Y4. Batch and fed-batch modes were tested with feeding of concentrated JA extracts or JA hydrolysates. Cultivation of R. toruloides Y4 with JA extracts gave a moderate cellular lipid content of 40% (w/w), whereas lipid titer and cellular lipid content reached 39.6 g l(-1) and 56.5% (w/w), respectively, when JA hydrolysates were fed. Our results suggested that JA tubers may be further explored as raw material for large scale microbial lipid production.
Zhao
Xin
X
Dalian Institute of Chemical Physics, CAS, 116023 Dalian, China.
Wu
Siguo
S
Hu
Cuimin
C
Wang
Qian
Q
Hua
Yanyan
Y
Zhao
Zongbao K
ZK
D001487:Basidiomycota / Q000378:metabolism*; D056804:Biofuels; D019149:Bioreactors; D005285:Fermentation; D006368:Helianthus / Q000378:metabolism*; D008055:Lipids / Q000096:biosynthesis*
D056804:Biofuels; D008055:Lipids