Ability of an alkali-tolerant mutant strain of the microalga Chlorella sp. AT1 to capture carbon dioxide for increasing carbon dioxide utilization efficiency

Kuo, Chiu Mei; Lin, Tsung-Hsien; Yang, Yi; Zhang, Wenxing; Lai, Jinn Tsyy; Wu, Hsi-Tien; Chang, Jo Shu; Lin, Chih Sheng

doi:10.1016/j.biortech.2017.07.096

Cited by 42 publications

(15 citation statements)

References 47 publications

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“…Recently, many research studies have come up showing the positive impact of growing microalgae under high concentrations of Ci in the form of pure gaseous CO 2 , real or simulated flue gas, or soluble carbonate (bicarbonate), reporting increased carbon bio-fixation and biomass productivity (Ho et al, 2010;Sydney et al, 2010;Yoo et al, 2010;Tang et al, 2011;Singh et al, 2014;Aslam et al, 2017;Kuo et al, 2017). Detailed information can be found in elaborated reviews by Lam et al (2012); Cheah et al (2015); Thomas et al 2016; Vuppaladadiyam et al (2018).…”

Section: Co 2 Capture By Microalgaementioning

confidence: 99%

“…Recently, Yang et al (2017), genetically engineered the calvin cycle of Chlorella vulgaris enhancing its photosynthetic capacity by ∼1.2-fold, by introducing the cyanobacterial fructose 1,6-bisphosphate aldolase, guided by a plastid transit peptide. Kuo et al (2017), screened an alkali-tolerant, Chlorella sp. AT1 mutant strain by NTG (N-methyl-N -nitro-N-nitrosoguanidine) mutagenesis that survived well 10% CO 2 for prospective CO 2 sequestration.…”

Section: State-of-the-artmentioning

confidence: 99%

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Overview of Carbon Capture Technology: Microalgal Biorefinery Concept and State-of-the-Art

2019

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The impending danger of climate change and pollution can now be seen on the world panorama. The concentration of CO 2 , the most important Green House Gas (GHG), has reached to formidable levels. Although carbon capture and storage (CCS) methods have been largely worked upon, they are cumbersome in terms of economy and their long term environmental safety raises a concern. Alternatively, bio-sequestration of CO 2 using microalgal cell factories has emerged as a promising way of recycling CO 2 into biomass via photosynthesis which in turn could be used for the production of bioenergy and other value-added products. Despite enormous potential, the production of microalgae for low-value bulk products and bulk products such as biofuels, is heretofore, not feasible. To achieve economic viability and sustainability, major hurdles in both, the upstream and downstream processes have to be overcome. Recent technoeconomic analyses and life-cycle assessments of microalgae-based production systems have suggested that the only possible way for scaling up the production is to completely use the biomass in an integrated biorefinery setup wherein every valuable component is extracted, processed and valorized. This article provides a brief yet comprehensive review of the present carbon sequestration and utilization technologies, focusing primarily on biological CO 2 capture by microalgae in the context of bio-refinery. The paper discusses various products of microalgal biorefinery and aims to assess the opportunities, challenges and current state-of-the-art of microalgae-based CO 2 bioconversion, which are essential to the sustainability of this approach in terms of the environment as well as the economy.

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Section: Co 2 Capture By Microalgaementioning

confidence: 99%

Section: State-of-the-artmentioning

confidence: 99%

Overview of Carbon Capture Technology: Microalgal Biorefinery Concept and State-of-the-Art

2019

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“…In addition to naturally occurring microalgae, genetic engineered Chlorella sp. is able to survive in an alkaline environment (pH 6~11) with a biomass productivity 12-fold higher than the wild type [126]. Introducing an aldolase gene of cyanobacteria into the chloroplast of Chlorella vulgaris increases the biological CO2R efficiency by 1.2 times that of the original strain [127].…”

Section: Biotic Co2r By Microalgae Farmingmentioning

confidence: 99%

“…in the batch reactor [117]. Semicontinuous cultivation, which replaces certain amount of microalgal suspension with fresh medium in order to replenish nutrients and reduce the concentration of biomass, is probably the most common strategy in large-scale algae cultivation [126,144]. Furthermore, Huang et al (2016) have studied a pre-harvesting cultivation strategy, using filtration to decrease the concentration of microalgal cells, and reported that nitrogen utilization efficiency can reach 76%, which is 1.7-fold that of semi-continuous cultivation [143].…”

Section: The Unit Processes For Biotic Co2rmentioning

confidence: 99%

Recent Advances in Carbon Dioxide Conversion: A Circular Bioeconomy Perspective

et al. 2021

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Managing the concentration of atmospheric CO2 requires a multifaceted engineering strategy, which remains a highly challenging task. Reducing atmospheric CO2 (CO2R) by converting it to value-added chemicals in a carbon neutral footprint manner must be the ultimate goal. The latest progress in CO2R through either abiotic (artificial catalysts) or biotic (natural enzymes) processes is reviewed herein. Abiotic CO2R can be conducted in the aqueous phase that usually leads to the formation of a mixture of CO, formic acid, and hydrogen. By contrast, a wide spectrum of hydrocarbon species is often observed by abiotic CO2R in the gaseous phase. On the other hand, biotic CO2R is often conducted in the aqueous phase and a wide spectrum of value-added chemicals are obtained. Key to the success of the abiotic process is understanding the surface chemistry of catalysts, which significantly governs the reactivity and selectivity of CO2R. However, in biotic CO2R, operation conditions and reactor design are crucial to reaching a neutral carbon footprint. Future research needs to look toward neutral or even negative carbon footprint CO2R processes. Having a deep insight into the scientific and technological aspect of both abiotic and biotic CO2R would advance in designing efficient catalysts and microalgae farming systems. Integrating the abiotic and biotic CO2R such as microbial fuel cells further diversifies the spectrum of CO2R.

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“…However, the industrialization of microalgae culture in largescale outdoor open-ponds still faces difficulties such as low productivity, contamination by invasive species, continuous supply of inorganic carbon and inefficient harvesting (Wensel et al, 2014). An effective way to reduce the cost of CO 2 supply is to culture microalgae in an extremely high pH medium (pH > 10) that is capable of capturing more CO 2 for microalgae growth by direct reaction of CO 2 with OH − in the liquid boundary layer around gas bubbles (Santos et al, 2013;Kuo et al, 2017). The CO 2 utilization efficiency of Chlorella sp.…”

Section: Introductionmentioning

confidence: 99%

Effect of Nitrogen Concentration on the Alkalophilic Microalga Nitzschia sp. NW129-a Promising Feedstock for the Integrated Production of Lipids and Fucoxanthin in Biorefinery

et al. 2022

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Microalgae are considered promising resources for producing a variety of high-value-added products, especially for lipids and pigments. Alkalophilic microalgae have more advantages than other microalgae when cultured outdoors on a large scale. The present study investigated the comprehensive effects of different nitrogen concentrations on fucoxanthin (Fx), lipids accumulation and the fatty acid profile of the alkaliphilic microalgae Nitzschia sp. NW129 to evaluate the potential for simultaneous production of Fx and biofuels. Fx and Lipids amassed in a coordinated growth-dependent manner in response to various concentrations, reaching 18.18 mg g–1 and 40.67% dry weight (DW), respectively. The biomass of Nitzschia sp. NW129 was 0.58 ± 0.02 g L–1 in the medium at the concentration of 117.65 mM. The highest productivities of Fx (1.44 mg L–1 d–1) and lipid (19.95 ± 1.29 mg L–1 d–1) were obtained concurrently at this concentration. Furthermore, the fatty acid methyl esters revealed excellent biofuel properties with an appropriate value of the degree unsaturation (49.97), cetane number (62.72), and cold filter plugging point (2.37), which met the European standards for biofuel production (EN14214). These results provided a reliable strategy for further industrialization and comprehensive production of biofuel and Fx by using the alkaliphilic microalgal Nitzschia sp. NW129.

show abstract

Ability of an alkali-tolerant mutant strain of the microalga Chlorella sp. AT1 to capture carbon dioxide for increasing carbon dioxide utilization efficiency

Cited by 42 publications

References 47 publications

Overview of Carbon Capture Technology: Microalgal Biorefinery Concept and State-of-the-Art

Overview of Carbon Capture Technology: Microalgal Biorefinery Concept and State-of-the-Art

Recent Advances in Carbon Dioxide Conversion: A Circular Bioeconomy Perspective

Effect of Nitrogen Concentration on the Alkalophilic Microalga Nitzschia sp. NW129-a Promising Feedstock for the Integrated Production of Lipids and Fucoxanthin in Biorefinery

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