Enrichment of Second Generation Ethanol Concentration Obtained from Napier Grass Pretreated with Sulfuric Acid and Hydrothermal Pretreatment
Enhancing sugar concentration is crucial for improving ethanol yield in biorefinery processes, enabling more efficient downstream recovery. This study investigates the hydrothermal pretreatment of Napier grass with 2% sulfuric acid to boost sugar recovery and ethanol production by incorporating a co...
Saved in:
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
EDP Sciences
2025-01-01
|
| Series: | E3S Web of Conferences |
| Subjects: | |
| Online Access: | https://www.e3s-conferences.org/articles/e3sconf/pdf/2025/02/e3sconf_icome2025_02007.pdf |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1841526732056690688 |
|---|---|
| author | Phakeenuya Vanarat Panakkal Elizabeth Jayex Gundupalli Marttin Paulraj Klinjapo Roungdao Sriariyanun Malinee Tantayotai Prapakorn |
| author_facet | Phakeenuya Vanarat Panakkal Elizabeth Jayex Gundupalli Marttin Paulraj Klinjapo Roungdao Sriariyanun Malinee Tantayotai Prapakorn |
| author_sort | Phakeenuya Vanarat |
| collection | DOAJ |
| description | Enhancing sugar concentration is crucial for improving ethanol yield in biorefinery processes, enabling more efficient downstream recovery. This study investigates the hydrothermal pretreatment of Napier grass with 2% sulfuric acid to boost sugar recovery and ethanol production by incorporating a concentration step. After pretreatment, the liquid fractions were concentrated two-fold and four-fold through rotary evaporation and freeze-drying, resulting in a significant increase in sugar levels, with a 3.5-fold rise in sugar concentration achieved through rotary evaporation compared to unconcentrated samples. However, ethanol production was limited by elevated levels of inhibitors, such as acetic acid and furfural. The maximum ethanol concentration reached was 2.43%, from a liquid fraction concentrated four-fold. These results highlight the necessity of concentration techniques to improve sugar recovery, while also emphasizing the importance of removing inhibitors to increase ethanol yields and enhance the overall efficiency of biorefining processes. |
| format | Article |
| id | doaj-art-1b1d2b86fdaf4ab6a1f499454a587108 |
| institution | Kabale University |
| issn | 2267-1242 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | E3S Web of Conferences |
| spelling | doaj-art-1b1d2b86fdaf4ab6a1f499454a5871082025-01-16T11:22:35ZengEDP SciencesE3S Web of Conferences2267-12422025-01-016020200710.1051/e3sconf/202560202007e3sconf_icome2025_02007Enrichment of Second Generation Ethanol Concentration Obtained from Napier Grass Pretreated with Sulfuric Acid and Hydrothermal PretreatmentPhakeenuya Vanarat0Panakkal Elizabeth Jayex1Gundupalli Marttin Paulraj2Klinjapo Roungdao3Sriariyanun Malinee4Tantayotai Prapakorn5Department of Biotechnology, Faculty of Applied Science, King Mongkut’s University of Technology North BangkokBiorefinery and Process Automation Engineering Center, Department of Chemical and Process Engineering, The Sirindhorn International Thai-German Graduate School of Engineering, King Mongkut’s University of Technology North BangkokFaculty of Agricultural, Life and Environmental Sci Ag, Food & Nutri Sci Dept, University of AlbertaTheophane Venard School Of Biotechnology, Assumption University ofBiorefinery and Process Automation Engineering Center, Department of Chemical and Process Engineering, The Sirindhorn International Thai-German Graduate School of Engineering, King Mongkut’s University of Technology North BangkokDepartment of Microbiology, Faculty of Science, Srinakharinwirot UniversityEnhancing sugar concentration is crucial for improving ethanol yield in biorefinery processes, enabling more efficient downstream recovery. This study investigates the hydrothermal pretreatment of Napier grass with 2% sulfuric acid to boost sugar recovery and ethanol production by incorporating a concentration step. After pretreatment, the liquid fractions were concentrated two-fold and four-fold through rotary evaporation and freeze-drying, resulting in a significant increase in sugar levels, with a 3.5-fold rise in sugar concentration achieved through rotary evaporation compared to unconcentrated samples. However, ethanol production was limited by elevated levels of inhibitors, such as acetic acid and furfural. The maximum ethanol concentration reached was 2.43%, from a liquid fraction concentrated four-fold. These results highlight the necessity of concentration techniques to improve sugar recovery, while also emphasizing the importance of removing inhibitors to increase ethanol yields and enhance the overall efficiency of biorefining processes.https://www.e3s-conferences.org/articles/e3sconf/pdf/2025/02/e3sconf_icome2025_02007.pdfbiofuelbiorefinerycircular economylignocellulose biomasspretreatment |
| spellingShingle | Phakeenuya Vanarat Panakkal Elizabeth Jayex Gundupalli Marttin Paulraj Klinjapo Roungdao Sriariyanun Malinee Tantayotai Prapakorn Enrichment of Second Generation Ethanol Concentration Obtained from Napier Grass Pretreated with Sulfuric Acid and Hydrothermal Pretreatment E3S Web of Conferences biofuel biorefinery circular economy lignocellulose biomass pretreatment |
| title | Enrichment of Second Generation Ethanol Concentration Obtained from Napier Grass Pretreated with Sulfuric Acid and Hydrothermal Pretreatment |
| title_full | Enrichment of Second Generation Ethanol Concentration Obtained from Napier Grass Pretreated with Sulfuric Acid and Hydrothermal Pretreatment |
| title_fullStr | Enrichment of Second Generation Ethanol Concentration Obtained from Napier Grass Pretreated with Sulfuric Acid and Hydrothermal Pretreatment |
| title_full_unstemmed | Enrichment of Second Generation Ethanol Concentration Obtained from Napier Grass Pretreated with Sulfuric Acid and Hydrothermal Pretreatment |
| title_short | Enrichment of Second Generation Ethanol Concentration Obtained from Napier Grass Pretreated with Sulfuric Acid and Hydrothermal Pretreatment |
| title_sort | enrichment of second generation ethanol concentration obtained from napier grass pretreated with sulfuric acid and hydrothermal pretreatment |
| topic | biofuel biorefinery circular economy lignocellulose biomass pretreatment |
| url | https://www.e3s-conferences.org/articles/e3sconf/pdf/2025/02/e3sconf_icome2025_02007.pdf |
| work_keys_str_mv | AT phakeenuyavanarat enrichmentofsecondgenerationethanolconcentrationobtainedfromnapiergrasspretreatedwithsulfuricacidandhydrothermalpretreatment AT panakkalelizabethjayex enrichmentofsecondgenerationethanolconcentrationobtainedfromnapiergrasspretreatedwithsulfuricacidandhydrothermalpretreatment AT gundupallimarttinpaulraj enrichmentofsecondgenerationethanolconcentrationobtainedfromnapiergrasspretreatedwithsulfuricacidandhydrothermalpretreatment AT klinjaporoungdao enrichmentofsecondgenerationethanolconcentrationobtainedfromnapiergrasspretreatedwithsulfuricacidandhydrothermalpretreatment AT sriariyanunmalinee enrichmentofsecondgenerationethanolconcentrationobtainedfromnapiergrasspretreatedwithsulfuricacidandhydrothermalpretreatment AT tantayotaiprapakorn enrichmentofsecondgenerationethanolconcentrationobtainedfromnapiergrasspretreatedwithsulfuricacidandhydrothermalpretreatment |