Characterization of a novel marine unicellular alga, Pseudoneochloris sp. strain NKY372003 as a high carbohydrate producer

Aketo, Tsuyoshi; Hashizume, Rina; Yabu, Yusuke; Hoshikawa, Yumiko; Nojima, Daisuke; Maeda, Yoshiaki; Yoshino, Tomoko; Takano, Hiroyuki

doi:10.1016/j.jbiosc.2019.12.010

Cited by 10 publications

(5 citation statements)

References 32 publications

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“…These include species from the genera, Chlorella, Picochlorum, Scenedesmus, Cyclotela, Tetraselmus and Nanochloropsis (Table 1). Many of these species have demonstrated long-term biomass production (>100 days) yields approaching 40 gdw/m 2 / day 22, (Huesemann et al, 2018;Dahlin et al, 2019;Gonzalez-Esquer et al, 2019;Aketo et al, 2020;Mucko et al, 2020;Cano et al, 2021;Krishnan et al, 2021). Averaged over a yearlong growing season algae having a growth rate of 40 gdw/m 2 /day could yield as much as 145 metric tons dw/ha/yr having an average energy density of 21 kJ/gdw.…”

Section: Strain Selection For Enhanced Biomass Yieldmentioning

confidence: 99%

“…Thermodynamic modeling of the energy efficiency of converting solar photons into chemical energy of biomass in algae indicates that the type of major energy product stored has an impact on the overall solar to chemical energy conversion efficiency. Storage of reduced carbon as starch has been shown to be more energy efficient than lipid storage (Subramanian et al, 2013;Finkel et al, 2016;Sun et al, 2018;Aketo et al, 2020;Changko et al, 2020;Negi et al, 2020). The greater energy storage efficiency of starch versus lipids is largely due to the loss of previously reduced carbon during lipid synthesis that occurs with the decarboxylation of pyruvate to produce acetyl CoA for lipid synthesis.…”

Section: Strain Selection For Enhanced Biomass Yieldmentioning

confidence: 99%

“…Recently, a green algal species Pseudoneochloris sp. Strain NKY372003 was shown to accumulate very high starch levels relative to other algal strains (68% of total biomass) (Aketo et al, 2020). In addition, Pseudoneochloris has the ability to increase its cell volume by over 100-fold.…”

Section: Strain Selection For Enhanced Biomass Yieldmentioning

confidence: 99%

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The right stuff; realizing the potential for enhanced biomass production in microalgae

Subramanian

Sayre

2022

Front. Energy Res.

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There is growing evidence that eukaryotic microalgae can become a more sustainable and profitable alternative than terrestrial crops to produce feed, fuels, and valuable coproducts. The major factor driving progress in algal biomass production is the potential of microalgae to produce substantially greater biomass per unit land area than terrestrial crops. To be financially feasible, however, current algal biomass yields must be increased. Given the fact that algal biomass production is in its infancy there exist multiple opportunities to improve biomass yields. For example, recent bioprospecting efforts have led to the identification of new microalgal strains having biomass yields that compete economically with plant biomass. Substantial increases in biomass yields have also been achieved using advanced genetic engineering approaches. Targeted improvements in photosynthetic efficiency have led to three-fold increases in algal biomass yields. One genetic tool that has seen limited application for algal biomass enhancement is advanced breeding genetics. The greater availability of algal genomes and recent advancements in breeding algae will further accelerate yield improvements. Genetic engineering strategies to increase biomass production will also be assisted by transcriptomic and metabolomic studies that help identify metabolic constraints that limit biomass production. In this review we assess some of the recent advances in algal strain selection, directed evolution, genetic engineering and molecular-assisted breeding that offer the potential for increased algal biomass production.

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Section: Strain Selection For Enhanced Biomass Yieldmentioning

confidence: 99%

Section: Strain Selection For Enhanced Biomass Yieldmentioning

confidence: 99%

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The right stuff; realizing the potential for enhanced biomass production in microalgae

Subramanian

Sayre

2022

Front. Energy Res.

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“…However, algal cell division rates and control of cell volume are among the more important determinants of algal biomass production. While many single celled algae have fixed cell volumes that determine the timing of cytokinesis some single celled algae are capable of over 100-fold increases in cell volume as they grow while having variable rates of cell division [35,36].…”

Section: Genetic Enhancementmentioning

confidence: 99%

“…Meghna Rajvanshi 1 and Richard Sayre 2 * 1 Reliance Industries Limited, Mumbai, India 2 New Mexico Consortium, Los Alamos, USA *Address all correspondence to: rsayre@newmexicoconsortium.org biocrudes may be one of the most efficient and sustainable means to sequester atmospheric carbon [35,166,167]. Instead of extracting non-renewable petroleum (ancient algal biomass) from the earth it may become necessary to sequester atmospheric carbon by returning algal biocrude to the earth perhaps through the same pumps and wells that were used to extract petroleum.…”

Section: Author Detailsmentioning

confidence: 99%

Recent Advances in Algal Biomass Production

Rajvanshi¹,

Sayre²

2021

Biotechnological Applications of Biomass

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The promise of algae to address the renewable energy and green-product production demands of the globe has yet to be realized. Over the past ten years, however, there has been a substantial investment and interest in realizing the potential of algae to meet these needs. Tremendous progress has been achieved. Ten years ago, the price of gasoline produced from algal biomass was 20-fold greater than it is today. Technoeconomic models indicate that algal biocrude produced in an optimized cultivation, harvesting, and biomass conversion facility can achieve economic parity with petroleum while reducing carbon-energy indices substantially relative to petroleum-based fuels. There is also an emerging recognition that algal carbon capture and sequestration as lipids may offer a viable alternative to direct atmospheric CO2 capture and sequestration. We review recent advances in basic and applied algal biomass production from the perspectives of algal biology, cultivation, harvesting, energy conversion, and sustainability. The prognosis is encouraging but will require substantial integration and field testing of a variety of technology platforms to down select the most economical and sustainable systems to address the needs of the circular economy and atmospheric carbon mitigation.

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Microalgae as Source of Bioenergy

Karageorgou,

Katapodis

2023

Renewable Energy Innovations

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Characterization of a novel marine unicellular alga, Pseudoneochloris sp. strain NKY372003 as a high carbohydrate producer

Cited by 10 publications

References 32 publications

The right stuff; realizing the potential for enhanced biomass production in microalgae

The right stuff; realizing the potential for enhanced biomass production in microalgae

Recent Advances in Algal Biomass Production

Microalgae as Source of Bioenergy

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