Sustained photobiological hydrogen production by Chlorella vulgaris without nutrient starvation
| Autor: | Giuseppe Torzillo, Jiří Masojídek, Cecilia Faraloni, Eleftherios Touloupakis, Ana Margarita Silva Benavides |
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| Rok vydání: | 2021 |
| Předmět: |
Photobiological hydrogen production
Light conversion efficiency Chlorella vulgaris Energy Engineering and Power Technology Photobioreactor Chlorella 02 engineering and technology 010402 general chemistry 01 natural sciences Microalgae Food science Dark hydrogen production Hydrogen production biology Hydrogenase activity Strain (chemistry) Renewable Energy Sustainability and the Environment Chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics biology.organism_classification 0104 chemical sciences Nutrient starvation Fuel Technology 0210 nano-technology |
| Zdroj: | International Journal of Hydrogen Energy (Online) 46 (2021): 3684–3694. doi:10.1016/j.ijhydene.2020.10.257 info:cnr-pdr/source/autori:Eleftherios Touloupakis, Cecilia Faraloni, Ana Margarita Silva Benavides, Ji?í Masojídek, Giuseppe Torzillo/titolo:Sustained photobiological hydrogen production by Chlorella vulgaris without nutrient starvation/doi:10.1016%2Fj.ijhydene.2020.10.257/rivista:International Journal of Hydrogen Energy (Online)/anno:2021/pagina_da:3684/pagina_a:3694/intervallo_pagine:3684–3694/volume:46 International Journal of Hydrogen Energy International Journal of Hydrogen Energy, vol.46(5), pp.3684-3694 Kérwá Universidad de Costa Rica instacron:UCR |
| ISSN: | 0360-3199 |
| DOI: | 10.1016/j.ijhydene.2020.10.257 |
| Popis: | This article describes the ability of the Chlorella vulgaris BEIJ strain G-120 to produce hydrogen (H2) via both direct and indirect pathways without the use of nutrient starvation. Photobiological H2 production reached a maximum rate of 12 mL H2 L1 h1 , corresponding to a light conversion efficiency (light to H2) of 7.7% (average 3.2%, over the 8-day period) of PAR, (photosynthetically active irradiance). Cells presented a maximum in vivo hydrogenase activity of 25.5 ± 0.2 nmoles H2 mgChl1 h1 and the calculated in vitro hydrogenase activity was 830 ± 61 nmoles H2 mgChl1 h1 . The strain is able to grow either heterotrophically or photo autotrophically. The total output of 896 mL of H2 was attained for illuminated culture and 405 mL for dark cultures. The average H2 production rate was 4.98 mL L1 h1 for the illuminated culture and 2.08 mL L1 h1 for the one maintained in the dark. Universidad de Costa Rica/[808-C0-107]/UCR/Costa Rica UCR::Vicerrectoría de Investigación::Unidades de Investigación::Ciencias Básicas::Centro de Investigación en Ciencias del Mar y Limnología (CIMAR) |
| Databáze: | OpenAIRE |
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