ENHANCED BIOHYDROGEN PRODUCTION THROUGH REPEATED-BATCH FERMENTATION OF RICE-BRAN
Repeated-batch fermentation experiments were carried out to determine the best switching time, stability, and consistency of the process for enhanced biohydrogen production from Rice-bran. After the initial batch process, one repeated Cycle was made for three ‘runs’ to determine the best switching t...
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| Format: | Article |
| Language: | English |
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Alma Mater Publishing House "Vasile Alecsandri" University of Bacau
2023-03-01
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| Series: | Scientific Study & Research: Chemistry & Chemical Engineering, Biotechnology, Food Industry |
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| Online Access: | https://pubs.ub.ro/?pg=revues&rev=cscc6&num=202301&vol=1&aid=5530 |
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| author | EBENEZER O. DADA ABASS O. ALADE ADEMOLA T. ADENIJI TINUADE J. AFOLABI |
| author_facet | EBENEZER O. DADA ABASS O. ALADE ADEMOLA T. ADENIJI TINUADE J. AFOLABI |
| author_sort | EBENEZER O. DADA |
| collection | DOAJ |
| description | Repeated-batch fermentation experiments were carried out to determine the best switching time, stability, and consistency of the process for enhanced biohydrogen production from Rice-bran. After the initial batch process, one repeated Cycle was made for three ‘runs’ to determine the best switching time, the ‘runs’ were terminated after 45 h, 60 h and 75 h, respectively. The effect of switching time on cell growth, hydrogen yield and productivity was investigated. The pattern of cell growth suggested that switching from batch mode to repeated batch mode at the 60th h led to the production of the highest amount of hydrogen. The lowest pH value (5.22) was observed at the end of the first fermentation Cycle. Cycle 2 has the highest amount of cumulative hydrogen production (mL 1280.3 L-1 medium) and the highest pH value (5.38). The profiles of the biomass concentration for all the Cycles were similar showing the stability and consistency of the process. There was an increment of 22 % in the overall Hydrogen gas production rate for the repeated batch process when compared to that of the ordinary batch process this result justified the use of the repeated batch system as a process that enhances biohydrogen production. |
| first_indexed | 2024-04-09T13:36:17Z |
| format | Article |
| id | doaj.art-9877809a073c4cde87cd3a7ae6952045 |
| institution | Directory Open Access Journal |
| issn | 1582-540X |
| language | English |
| last_indexed | 2024-04-09T13:36:17Z |
| publishDate | 2023-03-01 |
| publisher | Alma Mater Publishing House "Vasile Alecsandri" University of Bacau |
| record_format | Article |
| series | Scientific Study & Research: Chemistry & Chemical Engineering, Biotechnology, Food Industry |
| spelling | doaj.art-9877809a073c4cde87cd3a7ae69520452023-05-09T08:18:10ZengAlma Mater Publishing House "Vasile Alecsandri" University of BacauScientific Study & Research: Chemistry & Chemical Engineering, Biotechnology, Food Industry1582-540X2023-03-01241025040ENHANCED BIOHYDROGEN PRODUCTION THROUGH REPEATED-BATCH FERMENTATION OF RICE-BRANEBENEZER O. DADA 0ABASS O. ALADE 1ADEMOLA T. ADENIJI 2TINUADE J. AFOLABI 31. Ladoke Akintola University of Technology (LAUTECH), Department of Chemical Engineering, PMB 4000, Ogbomoso Nigeria 2. Univerisiti Kebangsaan Malaysia, Bangi, Department of Chemical and Process Engineering, 43600Bangi, Selangor, Malaysia1. Ladoke Akintola University of Technology (LAUTECH), Department of Chemical Engineering, PMB 4000, Ogbomoso Nigeria3. University Paris-Saclay, Laboratory of Process Engineering and Materials (LGPM), Centralesupelec, Plateau de Moulon 3 rue Joliot-Curie F-91192 Gif-sur-Yvette Cedex Paris, France1. Ladoke Akintola University of Technology (LAUTECH), Department of Chemical Engineering, PMB 4000, Ogbomoso NigeriaRepeated-batch fermentation experiments were carried out to determine the best switching time, stability, and consistency of the process for enhanced biohydrogen production from Rice-bran. After the initial batch process, one repeated Cycle was made for three ‘runs’ to determine the best switching time, the ‘runs’ were terminated after 45 h, 60 h and 75 h, respectively. The effect of switching time on cell growth, hydrogen yield and productivity was investigated. The pattern of cell growth suggested that switching from batch mode to repeated batch mode at the 60th h led to the production of the highest amount of hydrogen. The lowest pH value (5.22) was observed at the end of the first fermentation Cycle. Cycle 2 has the highest amount of cumulative hydrogen production (mL 1280.3 L-1 medium) and the highest pH value (5.38). The profiles of the biomass concentration for all the Cycles were similar showing the stability and consistency of the process. There was an increment of 22 % in the overall Hydrogen gas production rate for the repeated batch process when compared to that of the ordinary batch process this result justified the use of the repeated batch system as a process that enhances biohydrogen production.https://pubs.ub.ro/?pg=revues&rev=cscc6&num=202301&vol=1&aid=5530cell growthclostridium saccharoperbutylacetonicum n1-4hydrogen energyinitial substrate concentrationswitching time. |
| spellingShingle | EBENEZER O. DADA ABASS O. ALADE ADEMOLA T. ADENIJI TINUADE J. AFOLABI ENHANCED BIOHYDROGEN PRODUCTION THROUGH REPEATED-BATCH FERMENTATION OF RICE-BRAN Scientific Study & Research: Chemistry & Chemical Engineering, Biotechnology, Food Industry cell growth clostridium saccharoperbutylacetonicum n1-4 hydrogen energy initial substrate concentration switching time. |
| title | ENHANCED BIOHYDROGEN PRODUCTION THROUGH REPEATED-BATCH FERMENTATION OF RICE-BRAN |
| title_full | ENHANCED BIOHYDROGEN PRODUCTION THROUGH REPEATED-BATCH FERMENTATION OF RICE-BRAN |
| title_fullStr | ENHANCED BIOHYDROGEN PRODUCTION THROUGH REPEATED-BATCH FERMENTATION OF RICE-BRAN |
| title_full_unstemmed | ENHANCED BIOHYDROGEN PRODUCTION THROUGH REPEATED-BATCH FERMENTATION OF RICE-BRAN |
| title_short | ENHANCED BIOHYDROGEN PRODUCTION THROUGH REPEATED-BATCH FERMENTATION OF RICE-BRAN |
| title_sort | enhanced biohydrogen production through repeated batch fermentation of rice bran |
| topic | cell growth clostridium saccharoperbutylacetonicum n1-4 hydrogen energy initial substrate concentration switching time. |
| url | https://pubs.ub.ro/?pg=revues&rev=cscc6&num=202301&vol=1&aid=5530 |
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