Recent advancement and strategy on bio-hydrogen production from photosynthetic microalgae

Anwar, Muhammad; Lou, Sulin; Chen, Liu; Li, Hui; Hu, Zhangli

doi:10.1016/j.biortech.2019.121972

Cited by 156 publications

(43 citation statements)

References 139 publications

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“…In particular, miRNAs exhibit a regulatory function on the translation process by binding or degrading the messenger RNA and avoiding the corresponding protein synthesis. Transcriptomic studies showed that stressful situations in microalgae lead to an increase in these molecules which reflects the need to obtain immediate responses by the cell [46]. In Chlamydomonas reinhardtii, some endogenous miRNAs have overexpressed in S deprivation conditions.…”

Section: Targeted Mutagenesismentioning

confidence: 99%

“…The consumption of organic substrates, also deriving from waste, by photofermentation, include the transformation into organic acids, alcohols, CO 2, , and H 2 in presence of light, but with a low overall yield of solar energy conversion. In a similar way, but without light, dark fermentation uses various substrates and waste too, leading to the release of different components and gaseous mixtures in which hydrogen is present [46,54]. It has recently been observed that hydrogen production can be increased by up to 60% compared to Chlamydomonas reinhardtii monoculture systems, by using co-culture systems with Escherichia coli.…”

Section: Fermentation Processes and Biomass-applied Technologiesmentioning

confidence: 99%

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Biohydrogen from Microalgae: Production and Applications

et al. 2021

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The need to safeguard our planet by reducing carbon dioxide emissions has led to a significant development of research in the field of alternative energy sources. Hydrogen has proved to be the most promising molecule, as a fuel, due to its low environmental impact. Even if various methods already exist for producing hydrogen, most of them are not sustainable. Thus, research focuses on the biological sector, studying microalgae, and other microorganisms’ ability to produce this precious molecule in a natural way. In this review, we provide a description of the biochemical and molecular processes for the production of biohydrogen and give a general overview of one of the most interesting technologies in which hydrogen finds application for electricity production: fuel cells.

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Section: Targeted Mutagenesismentioning

confidence: 99%

Section: Fermentation Processes and Biomass-applied Technologiesmentioning

confidence: 99%

Biohydrogen from Microalgae: Production and Applications

et al. 2021

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“…Additionally, nutrients like organic nitrogen or phosphorus may be mineralized and subsequently recycled for algae cultivation [55]. Unlike biogas, biohydrogen is produced via their metabolic pathways along with the cell growth, therefore it does not require further processing of the biomass (i.e harvesting, dewatering, drying, and extraction), and is considered clean and renewable, with higher energy production (142 MJ/Kg −1 ) [56]. Biohydrogen can be obtained by photofermentation, dark fermentation, direct and indirect biophotolysis [57], however Hydrogen production cannot be achieved amidst effective photosynthesis as oxygen inactivates hydrogenase [58].…”

Section: How Algae-based Biofuels Changed Over Timementioning

confidence: 99%

The Application of Catalytic Processes on the Production of Algae-Based Biofuels: A Review

Zuorro¹,

García-Martínez²,

Barajas-Solano³

2020

Preprint

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Over the last decades, microalgal biomass has gained a significant role in the development of different high-end (nutraceuticals, colorants, food supplements, and pharmaceuticals) and low-end products (biodiesel, bioethanol, and biogas) due to rapid growth and high carbon fixing efficiency. Therefore, microalgae are considered a useful and sustainable resource to attain energy security while reducing our current reliance on fossil fuels. From the technologies available for obtaining biofuels using microalgae biomass, thermochemical processes (pyrolysis, HTL, gasification) have proven to be processed with higher viability, because they use all biomass. However, because of the complexity of the biomass (lipids, carbohydrates , and proteins), the obtained biofuels from direct thermochemical conversion have large amounts of heteroatoms (oxygen, nitrogen , and sulfur). As a solution, catalyst-based processes have emerged as a sustainable solution for the increase in biocrude production. This paper's objective is to present a comprehensive review of recent developments on catalyst mediated conversion of algal biomass. Special attention will be given to operating conditions, strains evaluated, and challenges for the optimal yield of algal-based biofuels through pyrolysis and HTL.

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“…Moreover, the biological production of hydrogen using these microorganisms is a new horizon to reach hydrogen through renewable sources. The hydrogen gas produced by biological processes can be easily converted into electrical energy; therefore, it can be considered as a clean and suitable fuel for transportation purposes [7,8]. Biohydrogen is produced through photosynthesis) Biophotolysis direct and indirect) and photofermentation and dark fermentation [8,9].…”

Section: Introductionmentioning

confidence: 99%

Effect of Superficial Gas Velocity on Continuous Hydrogen Production by Anabaena sp. in an Internal-loop Airlift Bioreactor

Malekshahi

et al. 2021

Preprint

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Global warming and rising air pollution which has been caused by using too much fossil fuel has led to look for a new clean source, sustainable and eco-friendly of energy like H2, which can be produced by cyanobacteria and microalgae. In this study, Anabaena sp. was used in a continuous operation to achieve biohydrogen production. To this end, an airlift photobioreactor (20 L) was considered. The effects of the gas holdup, liquid circulation velocity, and the amount of dissolved oxygen on hydrogen production were investigated. Gas holdup, liquid circulation velocity, and KLa (mass transfer coefficient) showed an upward trend by increasing the velocity of the inlet gas. Maximum biomass concentration of and maximal H2 production were observed 1.2 g L-1 d-1 and 371 mL h-1 PBR-1, respectively under light intensity of 3500 lux/m2 applying a light-dark cycle in 7 days, at Ad/Ar of 1.25 and 0.185 and 0.542 cm/s. pH, temperature (30+2 °C), light intensity, and inlet gas flow to the bioreactor (containing 98% air and 2% carbon dioxide) were remained steady. Using the airlift photobioreactor with a good mass transfer and light availability to cyanobacteria growth can be a cost-effective and environmentally technology for biological H2 production.

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Recent advancement and strategy on bio-hydrogen production from photosynthetic microalgae

Cited by 156 publications

References 139 publications

Biohydrogen from Microalgae: Production and Applications

Biohydrogen from Microalgae: Production and Applications

The Application of Catalytic Processes on the Production of Algae-Based Biofuels: A Review

Effect of Superficial Gas Velocity on Continuous Hydrogen Production by Anabaena sp. in an Internal-loop Airlift Bioreactor

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