New Approach to Fuelization of Herbaceous Lignocelluloses through Simultaneous Saccharification and Fermentation Followed by Photocatalytic Reforming
Bio-fuelization of herbaceous lignocelluloses through a simultaneous saccharification and fermentation process (SSF) and photocatalytic reforming (photo-Reform) was examined. The SSF of the alkali-pretreated bamboo, rice straw, and silvergrass was performed in an acetate buffer (pH 5.0) using cellu...
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MDPI AG
2014-06-01
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| Series: | Energies |
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| Online Access: | http://www.mdpi.com/1996-1073/7/7/4087 |
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| author | Masahide Yasuda Ryo Kurogi Hikaru Tsumagari Tsutomu Shiragami Tomoko Matsumoto |
| author_facet | Masahide Yasuda Ryo Kurogi Hikaru Tsumagari Tsutomu Shiragami Tomoko Matsumoto |
| author_sort | Masahide Yasuda |
| collection | DOAJ |
| description | Bio-fuelization of herbaceous lignocelluloses through a simultaneous saccharification and fermentation process (SSF) and photocatalytic reforming (photo-Reform) was examined. The SSF of the alkali-pretreated bamboo, rice straw, and silvergrass was performed in an acetate buffer (pH 5.0) using cellulase, xylanase, and Saccharomyces cerevisiae at 34 °C. Ethanol was produced in 63%–85% yields, while xylose was produced in 74%–97% yields without being fermented because xylose cannot be fermented by S. cerevisiae. After the removal of ethanol from the aqueous SSF solution, the SSF solution was subjected to a photo-Reform step where xylose was transformed into hydrogen by a photocatalytic reaction using Pt-loaded TiO2 (2 wt % of Pt content) under irradiation by a high pressure mercury lamp. The photo-Reform process produced hydrogen in nearly a yield of ten theoretical equivalents to xylose. Total energy was recovered as ethanol and hydrogen whose combustion energy was 73.4%–91.1% of that of the alkali-pretreated lignocelluloses (holocellulose). |
| first_indexed | 2024-04-11T12:44:50Z |
| format | Article |
| id | doaj.art-fa520e1b8c8848958639ace4196ff7da |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-04-11T12:44:50Z |
| publishDate | 2014-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-fa520e1b8c8848958639ace4196ff7da2022-12-22T04:23:24ZengMDPI AGEnergies1996-10732014-06-01774087409710.3390/en7074087en7074087New Approach to Fuelization of Herbaceous Lignocelluloses through Simultaneous Saccharification and Fermentation Followed by Photocatalytic ReformingMasahide Yasuda0Ryo Kurogi1Hikaru Tsumagari2Tsutomu Shiragami3Tomoko Matsumoto4Department of Applied Chemistry, Faculty of Engineering, University of Miyazaki, Gakuen-Kibanadai Nishi, Miyazaki 889-2192, JapanDepartment of Applied Chemistry, Faculty of Engineering, University of Miyazaki, Gakuen-Kibanadai Nishi, Miyazaki 889-2192, JapanDepartment of Applied Chemistry, Faculty of Engineering, University of Miyazaki, Gakuen-Kibanadai Nishi, Miyazaki 889-2192, JapanDepartment of Applied Chemistry, Faculty of Engineering, University of Miyazaki, Gakuen-Kibanadai Nishi, Miyazaki 889-2192, JapanCenter for Collaborative Research and Community Cooperation, University of Miyazaki, Gakuen-Kibanadai Nishi, Miyazaki 889-2192, JapanBio-fuelization of herbaceous lignocelluloses through a simultaneous saccharification and fermentation process (SSF) and photocatalytic reforming (photo-Reform) was examined. The SSF of the alkali-pretreated bamboo, rice straw, and silvergrass was performed in an acetate buffer (pH 5.0) using cellulase, xylanase, and Saccharomyces cerevisiae at 34 °C. Ethanol was produced in 63%–85% yields, while xylose was produced in 74%–97% yields without being fermented because xylose cannot be fermented by S. cerevisiae. After the removal of ethanol from the aqueous SSF solution, the SSF solution was subjected to a photo-Reform step where xylose was transformed into hydrogen by a photocatalytic reaction using Pt-loaded TiO2 (2 wt % of Pt content) under irradiation by a high pressure mercury lamp. The photo-Reform process produced hydrogen in nearly a yield of ten theoretical equivalents to xylose. Total energy was recovered as ethanol and hydrogen whose combustion energy was 73.4%–91.1% of that of the alkali-pretreated lignocelluloses (holocellulose).http://www.mdpi.com/1996-1073/7/7/4087bamboorice strawsilvergrasscellulasexylanasesimultaneous saccharification and fermentation (SSF)hydrogen-evolutionPt-loaded TiO2 |
| spellingShingle | Masahide Yasuda Ryo Kurogi Hikaru Tsumagari Tsutomu Shiragami Tomoko Matsumoto New Approach to Fuelization of Herbaceous Lignocelluloses through Simultaneous Saccharification and Fermentation Followed by Photocatalytic Reforming Energies bamboo rice straw silvergrass cellulase xylanase simultaneous saccharification and fermentation (SSF) hydrogen-evolution Pt-loaded TiO2 |
| title | New Approach to Fuelization of Herbaceous Lignocelluloses through Simultaneous Saccharification and Fermentation Followed by Photocatalytic Reforming |
| title_full | New Approach to Fuelization of Herbaceous Lignocelluloses through Simultaneous Saccharification and Fermentation Followed by Photocatalytic Reforming |
| title_fullStr | New Approach to Fuelization of Herbaceous Lignocelluloses through Simultaneous Saccharification and Fermentation Followed by Photocatalytic Reforming |
| title_full_unstemmed | New Approach to Fuelization of Herbaceous Lignocelluloses through Simultaneous Saccharification and Fermentation Followed by Photocatalytic Reforming |
| title_short | New Approach to Fuelization of Herbaceous Lignocelluloses through Simultaneous Saccharification and Fermentation Followed by Photocatalytic Reforming |
| title_sort | new approach to fuelization of herbaceous lignocelluloses through simultaneous saccharification and fermentation followed by photocatalytic reforming |
| topic | bamboo rice straw silvergrass cellulase xylanase simultaneous saccharification and fermentation (SSF) hydrogen-evolution Pt-loaded TiO2 |
| url | http://www.mdpi.com/1996-1073/7/7/4087 |
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