Ethanol Production from Corn Fiber Separated after Liquefaction in the Dry Grind Process
Conversion of corn fiber to ethanol in the dry grind process can increase ethanol yields, improve coproduct quality and contribute to process sustainability. This work investigates the use of two physio-chemical pretreatments on corn fiber and effect of cellulase enzyme dosage to improve ethanol yie...
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| Format: | Article |
| Language: | English |
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MDPI AG
2018-10-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/11/11/2921 |
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| author | Chinmay V. Kurambhatti Deepak Kumar Kent D. Rausch Mike E. Tumbleson Vijay Singh |
| author_facet | Chinmay V. Kurambhatti Deepak Kumar Kent D. Rausch Mike E. Tumbleson Vijay Singh |
| author_sort | Chinmay V. Kurambhatti |
| collection | DOAJ |
| description | Conversion of corn fiber to ethanol in the dry grind process can increase ethanol yields, improve coproduct quality and contribute to process sustainability. This work investigates the use of two physio-chemical pretreatments on corn fiber and effect of cellulase enzyme dosage to improve ethanol yields. Fiber separated after liquefaction of corn was pretreated using (I) hot water pretreatment (160 °C for 5, 10 or 20 min) and (II) wet disk milling and converted to ethanol. The conversion efficiencies of hot water pretreated fiber were higher than untreated fiber, with highest increase in conversion (10.4%) achieved for 5 min residence time at 160 °C. Disk milling was not effective in increasing conversion compared to other treatments. Hydrolysis and fermentation of untreated fiber with excess cellulase enzymes resulted in 33.3% higher conversion compared to untreated fiber. |
| first_indexed | 2024-04-11T13:24:49Z |
| format | Article |
| id | doaj.art-7be51351010c430ea3809735d59e4b29 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-04-11T13:24:49Z |
| publishDate | 2018-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-7be51351010c430ea3809735d59e4b292022-12-22T04:22:07ZengMDPI AGEnergies1996-10732018-10-011111292110.3390/en11112921en11112921Ethanol Production from Corn Fiber Separated after Liquefaction in the Dry Grind ProcessChinmay V. Kurambhatti0Deepak Kumar1Kent D. Rausch2Mike E. Tumbleson3Vijay Singh4Agricultural and Biological Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USAAgricultural and Biological Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USAAgricultural and Biological Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USAAgricultural and Biological Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USAAgricultural and Biological Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USAConversion of corn fiber to ethanol in the dry grind process can increase ethanol yields, improve coproduct quality and contribute to process sustainability. This work investigates the use of two physio-chemical pretreatments on corn fiber and effect of cellulase enzyme dosage to improve ethanol yields. Fiber separated after liquefaction of corn was pretreated using (I) hot water pretreatment (160 °C for 5, 10 or 20 min) and (II) wet disk milling and converted to ethanol. The conversion efficiencies of hot water pretreated fiber were higher than untreated fiber, with highest increase in conversion (10.4%) achieved for 5 min residence time at 160 °C. Disk milling was not effective in increasing conversion compared to other treatments. Hydrolysis and fermentation of untreated fiber with excess cellulase enzymes resulted in 33.3% higher conversion compared to untreated fiber.https://www.mdpi.com/1996-1073/11/11/2921corn fiberethanoldry grindpretreatmentdisk milling |
| spellingShingle | Chinmay V. Kurambhatti Deepak Kumar Kent D. Rausch Mike E. Tumbleson Vijay Singh Ethanol Production from Corn Fiber Separated after Liquefaction in the Dry Grind Process Energies corn fiber ethanol dry grind pretreatment disk milling |
| title | Ethanol Production from Corn Fiber Separated after Liquefaction in the Dry Grind Process |
| title_full | Ethanol Production from Corn Fiber Separated after Liquefaction in the Dry Grind Process |
| title_fullStr | Ethanol Production from Corn Fiber Separated after Liquefaction in the Dry Grind Process |
| title_full_unstemmed | Ethanol Production from Corn Fiber Separated after Liquefaction in the Dry Grind Process |
| title_short | Ethanol Production from Corn Fiber Separated after Liquefaction in the Dry Grind Process |
| title_sort | ethanol production from corn fiber separated after liquefaction in the dry grind process |
| topic | corn fiber ethanol dry grind pretreatment disk milling |
| url | https://www.mdpi.com/1996-1073/11/11/2921 |
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