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Application of de-lignified cellulose to enhance intracellular and extracellular lipid production from oleaginous yeast using acetic acid
- Source :
- Bioresource Technology. 293:122032
- Publication Year :
- 2019
- Publisher :
- Elsevier BV, 2019.
-
Abstract
- Two de-lignified cellulose of loofah sponge and sawdust were applied in two ways to enhance the lipid production from oleaginous yeast using acetic acid. When 30 g/L of acetic acid was used as a carbon source, direct addition of de-lignified loofah sponge or sawdust increased the extracellular lipid content to 33.94% and 53.25%, respectively. The latter reduced the energy input of lipid extraction process from 0.86 to 0.57 GJ per ton of biodiesel production. To relieve the inhibition caused by 40 g/L acetic acid, immobilization of oleaginous yeast on de-lignified sawdust increased the lipid concentration and yield from 3.83 g/L, 0.18 g/g C to 7.15 g/L, 0.20 g/g C, respectively. These improvements occurred due to the cell-immobilized sawdust which play an important role in the loading of cells and adsorption of acetic acid. Immobilized cultivation also increased the fatty acid proportion of C18:1, thereby improving biodiesel performance.
- Subjects :
- 0106 biological sciences
Environmental Engineering
Bioengineering
010501 environmental sciences
01 natural sciences
Acetic acid
chemistry.chemical_compound
010608 biotechnology
Extracellular
Food science
Cellulose
Waste Management and Disposal
Acetic Acid
0105 earth and related environmental sciences
chemistry.chemical_classification
Biodiesel
Renewable Energy, Sustainability and the Environment
Fatty Acids
Fatty acid
General Medicine
Lipids
Yeast
chemistry
Biofuels
Biodiesel production
visual_art
visual_art.visual_art_medium
Sawdust
Subjects
Details
- ISSN :
- 09608524
- Volume :
- 293
- Database :
- OpenAIRE
- Journal :
- Bioresource Technology
- Accession number :
- edsair.doi.dedup.....a5fbf5337ff7a18f12f598780c547114