Microbial Lipid Production from Corn Stover by the Oleaginous Yeast Rhodosporidium toruloides Using the PreSSLP Process
Dry acid pretreatment and biodetoxification (DryPB) has been considered as an advanced technology to treat lignocellulosic materials for improved downstream bioconversion. In this study, the lipid production from DryPB corn stover was investigated by the oleaginous yeast Rhodosporidium toruloides us...
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MDPI AG
2019-03-01
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| Series: | Energies |
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| Online Access: | http://www.mdpi.com/1996-1073/12/6/1053 |
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| author | Xiaozan Dai Hongwei Shen Qiang Li Kamal Rasool Qian Wang Xue Yu Lei Wang Jie Bao Dayu Yu Zongbao K. Zhao |
| author_facet | Xiaozan Dai Hongwei Shen Qiang Li Kamal Rasool Qian Wang Xue Yu Lei Wang Jie Bao Dayu Yu Zongbao K. Zhao |
| author_sort | Xiaozan Dai |
| collection | DOAJ |
| description | Dry acid pretreatment and biodetoxification (DryPB) has been considered as an advanced technology to treat lignocellulosic materials for improved downstream bioconversion. In this study, the lipid production from DryPB corn stover was investigated by the oleaginous yeast Rhodosporidium toruloides using a new process designated prehydrolysis followed by simultaneous saccharification and lipid production (PreSSLP). The results found that prehydrolysis at 50 °C and then lipid production at 30 °C improved lipid yield by more than 17.0% compared with those without a prehydrolysis step. The highest lipid yield of 0.080 g/g DryPB corn stover was achieved at a solid loading of 12.5%. The fatty acid distribution of lipid products was similar to those of conventional vegetable oils that are used for biodiesel production. Our results suggested that the integration of DryPB process and PreSSLP process can be explored as an improved technology for microbial lipid production from lignocellulosic materials. |
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| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-04-13T08:25:22Z |
| publishDate | 2019-03-01 |
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| series | Energies |
| spelling | doaj.art-117f64c8ff1545b7a0e85c529d8fc43c2022-12-22T02:54:30ZengMDPI AGEnergies1996-10732019-03-01126105310.3390/en12061053en12061053Microbial Lipid Production from Corn Stover by the Oleaginous Yeast Rhodosporidium toruloides Using the PreSSLP ProcessXiaozan Dai0Hongwei Shen1Qiang Li2Kamal Rasool3Qian Wang4Xue Yu5Lei Wang6Jie Bao7Dayu Yu8Zongbao K. Zhao9Sci-Tech Center for Clean Conversion and High-valued Utilization of Biomass, Jilin Province, Northeast Electric Power University, Jilin 132012, ChinaDivision of Biotechnology, Dalian Institute of Chemical Physics, CAS, Dalian 116023, ChinaDivision of Biotechnology, Dalian Institute of Chemical Physics, CAS, Dalian 116023, ChinaDivision of Biotechnology, Dalian Institute of Chemical Physics, CAS, Dalian 116023, ChinaDivision of Biotechnology, Dalian Institute of Chemical Physics, CAS, Dalian 116023, ChinaDivision of Biotechnology, Dalian Institute of Chemical Physics, CAS, Dalian 116023, ChinaSci-Tech Center for Clean Conversion and High-valued Utilization of Biomass, Jilin Province, Northeast Electric Power University, Jilin 132012, ChinaSchool of Biotechnology, East China University of Science and Technology, Shanghai 200237, ChinaSci-Tech Center for Clean Conversion and High-valued Utilization of Biomass, Jilin Province, Northeast Electric Power University, Jilin 132012, ChinaDivision of Biotechnology, Dalian Institute of Chemical Physics, CAS, Dalian 116023, ChinaDry acid pretreatment and biodetoxification (DryPB) has been considered as an advanced technology to treat lignocellulosic materials for improved downstream bioconversion. In this study, the lipid production from DryPB corn stover was investigated by the oleaginous yeast Rhodosporidium toruloides using a new process designated prehydrolysis followed by simultaneous saccharification and lipid production (PreSSLP). The results found that prehydrolysis at 50 °C and then lipid production at 30 °C improved lipid yield by more than 17.0% compared with those without a prehydrolysis step. The highest lipid yield of 0.080 g/g DryPB corn stover was achieved at a solid loading of 12.5%. The fatty acid distribution of lipid products was similar to those of conventional vegetable oils that are used for biodiesel production. Our results suggested that the integration of DryPB process and PreSSLP process can be explored as an improved technology for microbial lipid production from lignocellulosic materials.http://www.mdpi.com/1996-1073/12/6/1053corn stoverdry acid pretreatment and biodetoxificationmicrobial lipidsprehydrolysisRhodosporidium toruloides |
| spellingShingle | Xiaozan Dai Hongwei Shen Qiang Li Kamal Rasool Qian Wang Xue Yu Lei Wang Jie Bao Dayu Yu Zongbao K. Zhao Microbial Lipid Production from Corn Stover by the Oleaginous Yeast Rhodosporidium toruloides Using the PreSSLP Process Energies corn stover dry acid pretreatment and biodetoxification microbial lipids prehydrolysis Rhodosporidium toruloides |
| title | Microbial Lipid Production from Corn Stover by the Oleaginous Yeast Rhodosporidium toruloides Using the PreSSLP Process |
| title_full | Microbial Lipid Production from Corn Stover by the Oleaginous Yeast Rhodosporidium toruloides Using the PreSSLP Process |
| title_fullStr | Microbial Lipid Production from Corn Stover by the Oleaginous Yeast Rhodosporidium toruloides Using the PreSSLP Process |
| title_full_unstemmed | Microbial Lipid Production from Corn Stover by the Oleaginous Yeast Rhodosporidium toruloides Using the PreSSLP Process |
| title_short | Microbial Lipid Production from Corn Stover by the Oleaginous Yeast Rhodosporidium toruloides Using the PreSSLP Process |
| title_sort | microbial lipid production from corn stover by the oleaginous yeast rhodosporidium toruloides using the presslp process |
| topic | corn stover dry acid pretreatment and biodetoxification microbial lipids prehydrolysis Rhodosporidium toruloides |
| url | http://www.mdpi.com/1996-1073/12/6/1053 |
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