Comparison of Galdieria Growth and Photosynthetic Activity in Different Culture Systems

Carbone, Dora Allegra; Olivieri, Giuseppe; Pollio, Antonino; Melkonian, Michael

doi:10.21203/rs.3.rs-59573/v1

Cited by 2 publications

(2 citation statements)

References 53 publications

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“…For example, a novel twinlayer PBR system having immobilized Scenedesmus vacuolatus in a porous substrate has been reported to enhance the biomass productivity. 239 Similarly, a two-stage cultivation system utilized Chlorogloea fritschii to first grow autotrophically and was then transferred for recultivation in the presence of an organic substrate by adopting a heterotrophic mode of nutrition. Such a hybrid system enhanced the production of biomass and bioplastic by ∼5-fold.…”

Section: Photobioreactors (Pbrs)mentioning

confidence: 99%

Microalgal-Based Bioenergy: Strategies, Prospects, and Sustainability

2022

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The fuel crisis with the slumping reserves of fossil fuels and the exponential increase in the demand of energy necessitate a paradigm shift to a more sustainable and eco-friendly energy system. Microalgal biofuel has been recognized as one of the most prominent and versatile alternative renewable energy sources because it can be converted into a wide array of biofuels, such as biodiesel, bioethanol, bioelectricity and biogases such as syngas, methane, hydrogen, and hythane etc., with a lower carbon emission profile. To attain the economic viability of algal fuels, a collective biorefinery approach addressing both the operational and technical limitations is quintessential. The current review critically analyzes and categorizes energy aspects of microalgae through various direct and indirect approaches with the perspective of a circular economy. These approaches include complicated thermochemical and biochemical processes integrating the recovery of a wide range of value-added products apart from biofuels, thus defining a cascading approach for a multiproduct-based biorefinery model. A glimpse of recent technological advancements comprising hybrid cultivation systems, prospects of co-culturing, and the role of automated/modeling approaches in the industrial-scale production of "algal-based bioenergy" is also discussed in detail. Further, the review has also scrutinized and highlighted the developments and bottlenecks in genetic and molecular aspects of strain improvement for bioenergy production. Furthermore, the study also correlated the socioeconomic and environmental impacts of producing this green energy by evaluating the prospects and pitfalls to obtain a holistic picture on this alternative fuel for a bio-based sustainable economy.

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Section: Photobioreactors (Pbrs)mentioning

confidence: 99%

Microalgal-Based Bioenergy: Strategies, Prospects, and Sustainability

2022

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“…More recently, cultivation methods involving immobilization of microalgae have gained increased attention [17][18][19]. In immobilized systems, biomass and the bulk of the liquid medium are separated; consequently, there is less consumption of energy linked to mixing and harvesting, because the biomass is harvested directly as fresh weight [17,[20][21][22][23][24].…”

Section: Introductionmentioning

confidence: 99%

Potential of Porous Substrate Bioreactors for Removal of Pollutants from Wastewater Using Microalgae

Carbone,

Melkonian

2023

Bioengineering

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Porous substrate bioreactors (PSBRs) are a new technology to grow microalgae immobilized in a dense culture and solve some problems linked to suspended cultivation. During recent years, this technology has been used in laboratory and pilot setups in different fields of environmental biotechnology, such as wastewater treatment. The aim of this short review is to introduce the PSBR technology, summarize the results obtained in removing some pollutants from wastewater, provide an assessment of the potential of PSBRs for wastewater treatment, and the subsequent use of the algal biomass for other purposes.

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Comparison of Galdieria Growth and Photosynthetic Activity in Different Culture Systems

Cited by 2 publications

References 53 publications

Microalgal-Based Bioenergy: Strategies, Prospects, and Sustainability

Microalgal-Based Bioenergy: Strategies, Prospects, and Sustainability

Potential of Porous Substrate Bioreactors for Removal of Pollutants from Wastewater Using Microalgae

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