title: Lipid production from Jerusalem artichoke by Rhodosporidium toruloides Y4.
abstract: 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.
authors.affiliation: Dalian Institute of Chemical Physics, CAS, 116023 Dalian, China.
authors.forename: Xin
authors.initials: X
authors.lastname: Zhao
authors.forename: Siguo
authors.initials: S
authors.lastname: Wu
authors.forename: Cuimin
authors.initials: C
authors.lastname: Hu
authors.forename: Qian
authors.initials: Q
authors.lastname: Wang
authors.forename: Yanyan
authors.initials: Y
authors.lastname: Hua
authors.forename: Zongbao K
authors.initials: ZK
authors.lastname: Zhao
mesh_terms: D001487:Basidiomycota / Q000378:metabolism*; D056804:Biofuels; D019149:Bioreactors; D005285:Fermentation; D006368:Helianthus / Q000378:metabolism*; D008055:Lipids / Q000096:biosynthesis*
chemical_list: D056804:Biofuels; D008055:Lipids