Hydrothermal Processing of Microalgae

González‐Fernández, Cristina; Méndez, Lara; Ballesteros, Mercedes; Tomás‐Pejó, Elia

doi:10.1007/978-3-319-56457-9_21

Cited by 2 publications

(3 citation statements)

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“…Eukaryotic microalgae are composed of a semi-rigid structure or cell wall that confers cell protection against physical, chemical and biological agents. The composition of microalgae cell wall is speciesspecific and based on complex structures as cellulose, hemicellulose, pectin and glycoproteins, which makes cell walls highly resistant structures (Gonzalez-Fernandez et al, 2017). The composition and structure of microalgae cell wall influences AD performance and consequently the potential methane yield.…”

Section: Enhanced Biogas Production From Microalgae and Ppb For Wwt D...mentioning

confidence: 99%

“…Indeed, the cell wall hinders the anaerobic biodegradability of most microalgae species due to its high recalcitrance and resistance to microbial attack (Uggetti et al, 2017). In this context, a broad variety of pretreatments can be found in literature for the disruption of microalgal cells in order to increase the final yields of biogas production (Gonzalez-Fernandez et al, 2017;Mahdy et al, 2014aMahdy et al, , 2014bMendez et al, 2014b;Passos et al, 2014Passos et al, , 2015a. However, the differences among composition and structural characteristics of different microalgal species requires tailoring the selection of the optimal method for each microalgal biomass.…”

Section: Enhanced Biogas Production From Microalgae and Ppb For Wwt D...mentioning

confidence: 99%

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Pathways to Water Sector Decarbonization, Carbon Capture and Utilization

2022

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The water sector is in the middle of a paradigm shift from focusing on treatment and meeting discharge permit limits to integrated operation that also enables a circular water economy via water reuse, resource recovery, and system level planning and operation. While the sector has gone through different stages of such revolution, from improving energy efficiency to recovering renewable energy and resources, when it comes to the next step of achieving carbon neutrality or negative emission, it falls behind other infrastructure sectors such as energy and transportation. The water sector carries tremendous potential to decarbonize, from technological advancements, to operational optimization, to policy and behavioural changes. This book aims to fill an important gap for different stakeholders to gain knowledge and skills in this area and equip the water community to further decarbonize the industry and build a carbon-free society and economy. The book goes beyond technology overviews, rather it aims to provide a system level blueprint for decarbonization. It can be a reference book and textbook for graduate students, researchers, practitioners, consultants and policy makers, and it will provide practical guidance for stakeholders to analyse and implement decarbonization measures in their professions. ISBN: 9781789061789 (Paperback) ISBN: 9781789061796 (eBook) ISBN: 9781789061802 (ePUB)

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Section: Enhanced Biogas Production From Microalgae and Ppb For Wwt D...mentioning

confidence: 99%

Section: Enhanced Biogas Production From Microalgae and Ppb For Wwt D...mentioning

confidence: 99%

Pathways to Water Sector Decarbonization, Carbon Capture and Utilization

2022

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“…Thermal pretreatments involve biomass heat up in a wide range of temperatures (50–270 °C) and reaction time (from minutes to hours). With regard to thermal application, the effect on the biomass depends on the microalgae strain and applied temperature [ 30 ]. Passos et al [ 31 ] and Passos and Ferrer [ 42 ] applied thermal pretreatment to Scenedesmus sp.…”

Section: Pretreatment Of Microalgae Biomass To Improve Biogas Prodmentioning

confidence: 99%

Efficient Anaerobic Digestion of Microalgae Biomass: Proteins as a Key Macromolecule

2018

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Biogas generation is the least complex technology to transform microalgae biomass into bioenergy. Since hydrolysis has been pointed out as the rate limiting stage of anaerobic digestion, the main challenge for an efficient biogas production is the optimization of cell wall disruption/hydrolysis. Among all tested pretreatments, enzymatic treatments were demonstrated not only very effective in disruption/hydrolysis but they also revealed the impact of microalgae macromolecular composition in the anaerobic process. Although carbohydrates have been traditionally recognized as the polymers responsible for the low microalgae digestibility, protease addition resulted in the highest organic matter solubilization and the highest methane production. However, protein solubilization during the pretreatment can result in anaerobic digestion inhibition due to the release of large amounts of ammonium nitrogen. The possible solutions to overcome these negative effects include the reduction of protein biomass levels by culturing the microalgae in low nitrogen media and the use of ammonia tolerant anaerobic inocula. Overall, this review is intended to evidence the relevance of microalgae proteins in different stages of anaerobic digestion, namely hydrolysis and methanogenesis.

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Hydrothermal Processing of Microalgae

Cited by 2 publications

References 75 publications

Pathways to Water Sector Decarbonization, Carbon Capture and Utilization

Pathways to Water Sector Decarbonization, Carbon Capture and Utilization

Efficient Anaerobic Digestion of Microalgae Biomass: Proteins as a Key Macromolecule

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