Electron beam irradiation enhances the digestibility and fermentation yield of water-soaked lignocellulosic biomass
In order to overcome the limitation of commercial electron beam irradiation (EBI), lignocellulosic rice straw (RS) was pretreated using water soaking-based electron beam irradiation (WEBI). This environment-friendly pretreatment, without the formation (or release) of inhibitory compounds (especially...
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| Format: | Article |
| Language: | English |
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Elsevier
2014-12-01
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| Series: | Biotechnology Reports |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2215017X14000290 |
| _version_ | 1819205492861304832 |
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| author | Jin Seop Bak |
| author_facet | Jin Seop Bak |
| author_sort | Jin Seop Bak |
| collection | DOAJ |
| description | In order to overcome the limitation of commercial electron beam irradiation (EBI), lignocellulosic rice straw (RS) was pretreated using water soaking-based electron beam irradiation (WEBI). This environment-friendly pretreatment, without the formation (or release) of inhibitory compounds (especially hydroxymethylfurfural and furfural), significantly increased the enzymatic hydrolysis and fermentation yields of RS. Specifically, when water-soaked RS (solid:liquid ratio of 100%) was treated with WEBI doses of 1 MeV at 80 kGy, 0.12 mA, the glucose yield after 120 h of hydrolysis was 70.4% of the theoretical maximum. This value was predominantly higher than the 29.5% and 52.1% measured from untreated and EBI-treated RS, respectively. Furthermore, after simultaneous saccharification and fermentation for 48 h, the ethanol concentration, production yield, and productivity were 9.3 g/L, 57.0% of the theoretical maximum, and 0.19 g/L h, respectively. Finally, scanning electron microscopy images revealed that WEBI induced significant ultrastructural changes to the surface of lignocellulosic fibers. |
| first_indexed | 2024-12-23T04:52:34Z |
| format | Article |
| id | doaj.art-506ac705212b477c99bfe6471badce28 |
| institution | Directory Open Access Journal |
| issn | 2215-017X |
| language | English |
| last_indexed | 2024-12-23T04:52:34Z |
| publishDate | 2014-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Biotechnology Reports |
| spelling | doaj.art-506ac705212b477c99bfe6471badce282022-12-21T17:59:25ZengElsevierBiotechnology Reports2215-017X2014-12-014C303310.1016/j.btre.2014.07.006Electron beam irradiation enhances the digestibility and fermentation yield of water-soaked lignocellulosic biomassJin Seop BakIn order to overcome the limitation of commercial electron beam irradiation (EBI), lignocellulosic rice straw (RS) was pretreated using water soaking-based electron beam irradiation (WEBI). This environment-friendly pretreatment, without the formation (or release) of inhibitory compounds (especially hydroxymethylfurfural and furfural), significantly increased the enzymatic hydrolysis and fermentation yields of RS. Specifically, when water-soaked RS (solid:liquid ratio of 100%) was treated with WEBI doses of 1 MeV at 80 kGy, 0.12 mA, the glucose yield after 120 h of hydrolysis was 70.4% of the theoretical maximum. This value was predominantly higher than the 29.5% and 52.1% measured from untreated and EBI-treated RS, respectively. Furthermore, after simultaneous saccharification and fermentation for 48 h, the ethanol concentration, production yield, and productivity were 9.3 g/L, 57.0% of the theoretical maximum, and 0.19 g/L h, respectively. Finally, scanning electron microscopy images revealed that WEBI induced significant ultrastructural changes to the surface of lignocellulosic fibers.http://www.sciencedirect.com/science/article/pii/S2215017X14000290BioethanolBiomass pretreatmentWater soaking-based electron beam irradiation |
| spellingShingle | Jin Seop Bak Electron beam irradiation enhances the digestibility and fermentation yield of water-soaked lignocellulosic biomass Biotechnology Reports Bioethanol Biomass pretreatment Water soaking-based electron beam irradiation |
| title | Electron beam irradiation enhances the digestibility and fermentation yield of water-soaked lignocellulosic biomass |
| title_full | Electron beam irradiation enhances the digestibility and fermentation yield of water-soaked lignocellulosic biomass |
| title_fullStr | Electron beam irradiation enhances the digestibility and fermentation yield of water-soaked lignocellulosic biomass |
| title_full_unstemmed | Electron beam irradiation enhances the digestibility and fermentation yield of water-soaked lignocellulosic biomass |
| title_short | Electron beam irradiation enhances the digestibility and fermentation yield of water-soaked lignocellulosic biomass |
| title_sort | electron beam irradiation enhances the digestibility and fermentation yield of water soaked lignocellulosic biomass |
| topic | Bioethanol Biomass pretreatment Water soaking-based electron beam irradiation |
| url | http://www.sciencedirect.com/science/article/pii/S2215017X14000290 |
| work_keys_str_mv | AT jinseopbak electronbeamirradiationenhancesthedigestibilityandfermentationyieldofwatersoakedlignocellulosicbiomass |