Carbon Concentration in Algae: Reducing CO 2 From Exhaust Gas

Ghosh, Atreyee; Kiran, Boggavarapu

doi:10.1016/j.tibtech.2017.05.003

Cited by 53 publications

(16 citation statements)

References 11 publications

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“…(2) Pre-combustion, (3) Post-combustion and (4) Chemical looping (combustion) as discussed in Table (4). In addition, capture by algae [214][215][216][217][218][219][220], biochar [221][222][223][224][225][226] and charcoal [227] are recently demonstrated. While there are many CO 2 capture methods, introducing all of them are out of scope of this work and we refer the reader to various available literature on this topic [13, 17-25, 228, 229].…”

Section: Combining Electrochemical Methods With Conventional Capture mentioning

confidence: 99%

Electrochemical carbon dioxide capture to close the carbon cycle

Sharifian

Wagterveld²,

Digdaya

et al. 2021

Energy Environ. Sci.

285

196

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Section: Combining Electrochemical Methods With Conventional Capture mentioning

confidence: 99%

Electrochemical carbon dioxide capture to close the carbon cycle

Sharifian

Wagterveld²,

Digdaya

et al. 2021

Energy Environ. Sci.

285

196

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“…The exact structural causes of thermal activation of Saz_CA are yet to be elucidated and our preliminary data suggest that dimerisation is not a mechanism that is found in Saz_CA activation. The presumed thermal activation of the enzyme is interesting from a biological perspective and is a promising finding considering application of Saz_CA for CO 2 hydration from industrial sources that typically have high temperatures [32]. Interestingly, to date Saz_CA has not been applied for CO 2 hydration reaction above 0 °C.…”

Section: Resultsmentioning

confidence: 99%

Accelerated CO2 Hydration with Thermostable Sulfurihydrogenibium azorense Carbonic Anhydrase-Chitin Binding Domain Fusion Protein Immobilised on Chitin Support

Hou

Kaczmarek

et al. 2019

IJMS

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Carbonic anhydrases (CAs) represent a group of enzymes that catalyse important reactions of carbon dioxide hydration and dehydration, a reaction crucial to many biological processes and environmental biotechnology. In this study we successfully constructed a thermostable fusion enzyme composed of the Sulfurihydrogenibium azorense carbonic anhydrase (Saz_CA), the fastest CA discovered to date, and the chitin binding domain (ChBD) of chitinase from Bacillus circulans. Introduction of ChBD to the Saz_CA had no major impact on the effect of ions or inhibitors on the enzymatic activity. The fusion protein exhibited no negative effects up to 60 °C, whilst the fusion partner appears to protect the enzyme from negative effects of magnesium. The prepared biocatalyst appears to be thermally activated at 60 °C and could be partially purified with heat treatment. Immobilisation attempts on different kinds of chitin-based support results have shown that the fusion enzyme preferentially binds to a cheap, untreated chitin with a large crystallinity index over more processed forms of chitin. It suggests significant potential economic benefits for large-scale deployment of immobilised CA technologies such as CO2 utilisation or mineralisation.

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“…Earth is faced with the problem of increasing CO 2 levels in the present and coming decades. Algae as promising feedstocks can improve air quality by CO 2 biofixation . 50 % of the photosynthesis process on earth takes place in algae.…”

Section: Algaementioning

confidence: 99%

Macro and Micro Algae in Pollution Control and Biofuel Production – A Review

2020

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Microalgae are biological sources with an extensive range of biotechnological applications, e.g., for bioremediation of industrial and municipal wastes. Microalgae are used to monitor environmental toxicants like pesticides, heavy metals, and pharmaceuticals and in the final stage of wastewater treatment when organic pollution should be removed. CO 2 capturing is also important due to the environmental issues. Macro/microalgae cultures, depending on their growth stages and life cycles, have great poten-tial for CO 2 fixation. They are a dominant group of microorganisms for biological treatments with regards to their substantial biosorption ability to deactivate toxic heavy metals. Actual carbon biofixation can be employed in the direction of environmental sustainability and economic facility. Besides, algae are sustainable feedstock to produce a wide range of biofuels by applying thermochemical or biological conversion methods.

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Carbon Concentration in Algae: Reducing CO 2 From Exhaust Gas

Cited by 53 publications

References 11 publications

Electrochemical carbon dioxide capture to close the carbon cycle

Electrochemical carbon dioxide capture to close the carbon cycle

Accelerated CO2 Hydration with Thermostable Sulfurihydrogenibium azorense Carbonic Anhydrase-Chitin Binding Domain Fusion Protein Immobilised on Chitin Support

Macro and Micro Algae in Pollution Control and Biofuel Production – A Review

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