Interactions of Torrefaction and Alkaline Pretreatment with Respect to Glucose Yield of Hydrolyzed Wheat Straw
Torrefaction is known to reduce the logistical costs of biomass. Torrefied biomass’ prospects as feedstock for fermentation to liquid biofuel are largely unknown. This study investigated the interactions of torrefaction and alkaline pretreatment of wheat straw on glucose yields from enzymatic hydrol...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-10-01
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| Series: | Biomass |
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| Online Access: | https://www.mdpi.com/2673-8783/2/4/18 |
| _version_ | 1797461328998170624 |
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| author | Jaya Tripathi Tom L. Richard Berrak Memis Ali Demirci Daniel Ciolkosz |
| author_facet | Jaya Tripathi Tom L. Richard Berrak Memis Ali Demirci Daniel Ciolkosz |
| author_sort | Jaya Tripathi |
| collection | DOAJ |
| description | Torrefaction is known to reduce the logistical costs of biomass. Torrefied biomass’ prospects as feedstock for fermentation to liquid biofuel are largely unknown. This study investigated the interactions of torrefaction and alkaline pretreatment of wheat straw on glucose yields from enzymatic hydrolysis, including treatment order and the potential for pH to play a role in the process. Across a range of torrefaction severities with temperatures of 200 °C, 220 °C, and 240 °C and durations of 20, 40, and 60 min, torrefaction had a negative impact on glucose yield of wheat straw with or without alkaline pretreatment and regardless of the order of alkaline pretreatment. Alkaline pretreatment after torrefaction results in higher glucose yield than alkaline pretreatment before torrefaction, or by torrefaction alone. Hence, there is the prospect for adding logistical benefits of torrefaction to the bioethanol system if alkaline pretreatment is coupled with torrefaction. Decreasing trend in pH with increase in torrefaction severities was observed for trials without buffer, indicating chemical changes causing the decrease in pH might be associated with the reduction in yield. |
| first_indexed | 2024-03-09T17:17:52Z |
| format | Article |
| id | doaj.art-103f34f3445c43d1b5c4935b3b2d3d3a |
| institution | Directory Open Access Journal |
| issn | 2673-8783 |
| language | English |
| last_indexed | 2024-03-09T17:17:52Z |
| publishDate | 2022-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Biomass |
| spelling | doaj.art-103f34f3445c43d1b5c4935b3b2d3d3a2023-11-24T13:24:48ZengMDPI AGBiomass2673-87832022-10-012426427810.3390/biomass2040018Interactions of Torrefaction and Alkaline Pretreatment with Respect to Glucose Yield of Hydrolyzed Wheat StrawJaya Tripathi0Tom L. Richard1Berrak Memis2Ali Demirci3Daniel Ciolkosz4Department of Agricultural and Biological Engineering, Pennsylvania State University, Shortlidge Road, University Park, PA 16802, USADepartment of Agricultural and Biological Engineering, Pennsylvania State University, Shortlidge Road, University Park, PA 16802, USABlack Sea Agricultural Research Institute, Samsun 55105, TurkeyDepartment of Agricultural and Biological Engineering, Pennsylvania State University, Shortlidge Road, University Park, PA 16802, USADepartment of Agricultural and Biological Engineering, Pennsylvania State University, Shortlidge Road, University Park, PA 16802, USATorrefaction is known to reduce the logistical costs of biomass. Torrefied biomass’ prospects as feedstock for fermentation to liquid biofuel are largely unknown. This study investigated the interactions of torrefaction and alkaline pretreatment of wheat straw on glucose yields from enzymatic hydrolysis, including treatment order and the potential for pH to play a role in the process. Across a range of torrefaction severities with temperatures of 200 °C, 220 °C, and 240 °C and durations of 20, 40, and 60 min, torrefaction had a negative impact on glucose yield of wheat straw with or without alkaline pretreatment and regardless of the order of alkaline pretreatment. Alkaline pretreatment after torrefaction results in higher glucose yield than alkaline pretreatment before torrefaction, or by torrefaction alone. Hence, there is the prospect for adding logistical benefits of torrefaction to the bioethanol system if alkaline pretreatment is coupled with torrefaction. Decreasing trend in pH with increase in torrefaction severities was observed for trials without buffer, indicating chemical changes causing the decrease in pH might be associated with the reduction in yield.https://www.mdpi.com/2673-8783/2/4/18torrefactionalkaline pretreatmentenzymatic hydrolysisglucose yieldpHbuffer |
| spellingShingle | Jaya Tripathi Tom L. Richard Berrak Memis Ali Demirci Daniel Ciolkosz Interactions of Torrefaction and Alkaline Pretreatment with Respect to Glucose Yield of Hydrolyzed Wheat Straw Biomass torrefaction alkaline pretreatment enzymatic hydrolysis glucose yield pH buffer |
| title | Interactions of Torrefaction and Alkaline Pretreatment with Respect to Glucose Yield of Hydrolyzed Wheat Straw |
| title_full | Interactions of Torrefaction and Alkaline Pretreatment with Respect to Glucose Yield of Hydrolyzed Wheat Straw |
| title_fullStr | Interactions of Torrefaction and Alkaline Pretreatment with Respect to Glucose Yield of Hydrolyzed Wheat Straw |
| title_full_unstemmed | Interactions of Torrefaction and Alkaline Pretreatment with Respect to Glucose Yield of Hydrolyzed Wheat Straw |
| title_short | Interactions of Torrefaction and Alkaline Pretreatment with Respect to Glucose Yield of Hydrolyzed Wheat Straw |
| title_sort | interactions of torrefaction and alkaline pretreatment with respect to glucose yield of hydrolyzed wheat straw |
| topic | torrefaction alkaline pretreatment enzymatic hydrolysis glucose yield pH buffer |
| url | https://www.mdpi.com/2673-8783/2/4/18 |
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