Recent Achievements in Microalgal Photobiological Hydrogen Production

It is well known that over the last 60 years the trend of long-lived greenhouse gas emissions have shown a strong acceleration. There is an increasing concern and a mounting opposition by public opinion to continue with the use of fossil energy. Western countries are presently involved in a so-calle...

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Autores principales:	Eleftherios Touloupakis, Cecilia Faraloni, Ana Margarita Silva Benavides, Giuseppe Torzillo
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	biohydrogen microalgae <i>Chlamydomonas reinhardtii</i> <i>Chlorella</i> sp. photobioreactors light conversion efficiency Technology T
Acceso en línea:	https://doaj.org/article/a5204357b49d4c9bb59f51e225f445c0
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spelling	oai:doaj.org-article:a5204357b49d4c9bb59f51e225f445c02021-11-11T15:56:53ZRecent Achievements in Microalgal Photobiological Hydrogen Production10.3390/en142171701996-1073https://doaj.org/article/a5204357b49d4c9bb59f51e225f445c02021-11-01T00:00:00Zhttps://www.mdpi.com/1996-1073/14/21/7170https://doaj.org/toc/1996-1073It is well known that over the last 60 years the trend of long-lived greenhouse gas emissions have shown a strong acceleration. There is an increasing concern and a mounting opposition by public opinion to continue with the use of fossil energy. Western countries are presently involved in a so-called energy transition with the objective of abandoning fossil energy for renewable sources. In this connection, hydrogen can play a central role. One of the sustainable ways to produce hydrogen is the use of microalgae which possess two important natural catalysts: photosystem II and hydrogenase, used to split water and to combine protons and electrons to generate gaseous hydrogen, respectively. For about 20 years of study on photobiological hydrogen production, our scientific hopes were based on the application of the sulfur protocol, which indisputably represented a very important advancement in the field of hydrogen production biotechnology. However, as reported in this review, there is increasing evidence that this strategy is not economically viable. Therefore, a change of paradigm for the photobiological production of hydrogen based on microalgae seems mandatory. This review points out that an increasing number of microalgal strains other than <i>Chlamydomonas reinhardtii</i> are being tested and are able to produce sustainable amount of hydrogen without nutrient starvation and to fulfill this goal including the application of co-cultures.Eleftherios TouloupakisCecilia FaraloniAna Margarita Silva BenavidesGiuseppe TorzilloMDPI AGarticlebiohydrogenmicroalgae<i>Chlamydomonas reinhardtii</i><i>Chlorella</i> sp.photobioreactorslight conversion efficiencyTechnologyTENEnergies, Vol 14, Iss 7170, p 7170 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	biohydrogen microalgae <i>Chlamydomonas reinhardtii</i> <i>Chlorella</i> sp. photobioreactors light conversion efficiency Technology T
spellingShingle	biohydrogen microalgae <i>Chlamydomonas reinhardtii</i> <i>Chlorella</i> sp. photobioreactors light conversion efficiency Technology T Eleftherios Touloupakis Cecilia Faraloni Ana Margarita Silva Benavides Giuseppe Torzillo Recent Achievements in Microalgal Photobiological Hydrogen Production
description	It is well known that over the last 60 years the trend of long-lived greenhouse gas emissions have shown a strong acceleration. There is an increasing concern and a mounting opposition by public opinion to continue with the use of fossil energy. Western countries are presently involved in a so-called energy transition with the objective of abandoning fossil energy for renewable sources. In this connection, hydrogen can play a central role. One of the sustainable ways to produce hydrogen is the use of microalgae which possess two important natural catalysts: photosystem II and hydrogenase, used to split water and to combine protons and electrons to generate gaseous hydrogen, respectively. For about 20 years of study on photobiological hydrogen production, our scientific hopes were based on the application of the sulfur protocol, which indisputably represented a very important advancement in the field of hydrogen production biotechnology. However, as reported in this review, there is increasing evidence that this strategy is not economically viable. Therefore, a change of paradigm for the photobiological production of hydrogen based on microalgae seems mandatory. This review points out that an increasing number of microalgal strains other than <i>Chlamydomonas reinhardtii</i> are being tested and are able to produce sustainable amount of hydrogen without nutrient starvation and to fulfill this goal including the application of co-cultures.
format	article
author	Eleftherios Touloupakis Cecilia Faraloni Ana Margarita Silva Benavides Giuseppe Torzillo
author_facet	Eleftherios Touloupakis Cecilia Faraloni Ana Margarita Silva Benavides Giuseppe Torzillo
author_sort	Eleftherios Touloupakis
title	Recent Achievements in Microalgal Photobiological Hydrogen Production
title_short	Recent Achievements in Microalgal Photobiological Hydrogen Production
title_full	Recent Achievements in Microalgal Photobiological Hydrogen Production
title_fullStr	Recent Achievements in Microalgal Photobiological Hydrogen Production
title_full_unstemmed	Recent Achievements in Microalgal Photobiological Hydrogen Production
title_sort	recent achievements in microalgal photobiological hydrogen production
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/a5204357b49d4c9bb59f51e225f445c0
work_keys_str_mv	AT eleftheriostouloupakis recentachievementsinmicroalgalphotobiologicalhydrogenproduction AT ceciliafaraloni recentachievementsinmicroalgalphotobiologicalhydrogenproduction AT anamargaritasilvabenavides recentachievementsinmicroalgalphotobiologicalhydrogenproduction AT giuseppetorzillo recentachievementsinmicroalgalphotobiologicalhydrogenproduction
_version_	1718432555370283008

Recent Achievements in Microalgal Photobiological Hydrogen Production

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