Journal article
Microbial lipid production from xylose by Mortierella isabellina
Bioresource technology, Vol.133, pp.315-321
04/2013
Handle:
https://hdl.handle.net/2376/117305
PMID: 23434808
Abstract
► Potentials of efficient utilization of xylose for lipid production were assessed. ► Nitrogen source influenced lipid production. ► A high lipid yield of 0.182gg−1 on xylose consumed was achieved. ► Nitrogen concentration and inoculum level had great influence on lipid accumulation.
Culture conditions including nitrogen source and concentration, xylose concentration, and inoculum level were evaluated for the effect on cell growth and lipid production of an oleaginous fungus, Mortierella isabellina, grown on xylose. Yeast extract and ammonium sulfate were found to be the best amongst the organic and inorganic nitrogen sources tested, respectively. Subsequent combination of these two nitrogen sources at a nitrogen ratio of 1:1 further enhanced lipid production. The highest cell biomass 28.8gL−1 and lipid 18.5gL−1 were obtained on a medium containing 100gL−1 xylose and 50.4mM nitrogen with a spore concentration of 108mL−1. Specifically, nitrogen concentration and inoculum level were demonstrated to be important for obtaining a high lipid yield on xylose consumed of 0.182gg−1. The results suggest that M. isabellina holds great potential to be a candidate for biofuel production from xylose, the second most abundant sugar from lignocellulose.
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Details
- Title
- Microbial lipid production from xylose by Mortierella isabellina
- Creators
- Difeng GaoJijiao ZengYubin ZhengXiaochen YuShulin Chen
- Publication Details
- Bioresource technology, Vol.133, pp.315-321
- Publisher
- Elsevier Ltd
- Identifiers
- 99900582329401842
- Language
- English
- Resource Type
- Journal article