Biohydrogen Production by Antarctic Psychrotolerant Klebsiella sp. ABZ11
| Autor: | Kamaruzaman Soeed, Siti Aisyah Alias, Abdul Hafidz Omar, Zaharah Ibrahim, Jerzy Smykla, Mohd Firdaus Abdul-Wahab, Mustapha Abba, Mazlan Hashim, A. Mohammed, Mohd Nadzri Md Reba, Mohd Farid Muhamad Said |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
0301 basic medicine
Microbiology (medical) Sucrose lcsh:QH426-470 Klebsiella sp biohydrogen facultative psychrotolerant lcsh:QR1-502 chemistry.chemical_element 02 engineering and technology Applied Microbiology and Biotechnology Microbiology Oxygen lcsh:Microbiology 03 medical and health sciences chemistry.chemical_compound Biohydrogen Food science biology Substrate (chemistry) Fructose General Medicine Carbohydrate 021001 nanoscience & nanotechnology biology.organism_classification carbohydrate consumption oxygen uptake lcsh:Genetics 030104 developmental biology chemistry Yield (chemistry) 0210 nano-technology Bacteria |
| Zdroj: | Polish Journal of Microbiology, Vol 67, Iss 3 (2018) |
| ISSN: | 2544-4646 1733-1331 |
| Popis: | Lower temperature biohydrogen production has always been attractive, due to the lower energy requirements. However, the slow metabolic rate of psychrotolerant biohydrogen-producing bacteria is a common problem that affects their biohydrogen yield. This study reports on the improved substrate synthesis and biohydrogen productivity by the psychrotolerant Klebsiella sp. strain ABZ11, isolated from Antarctic seawater sample. The isolate was screened for biohydrogen production at 30°C, under facultative anaerobic condition. The isolate is able to ferment glucose, fructose and sucrose with biohydrogen production rate and yield of 0.8 mol/l/h and 3.8 mol/g, respectively at 10 g/l glucose concentration. It also showed 74% carbohydrate uptake and 95% oxygen uptake ability, and a wide growth temperature range with optimum at 37°C. Klebsiella sp. ABZ11 has a short biohydrogen production lag phase, fast substrate uptake and is able to tolerate the presence of oxygen in the culture medium. Thus, the isolate has a potential to be used for lower temperature biohydrogen production process. |
| Databáze: | OpenAIRE |
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