Effect of elevated carbon dioxide and nitric oxide on the physiological responses of two green algae, Asterarcys quadricellulare and Chlorella sorokiniana

Varshney, Prachi; Beardall, John; Bhattacharya, Sankar; Wangikar, Pramod P.

doi:10.1007/s10811-019-01950-2

Cited by 18 publications

(7 citation statements)

References 64 publications

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“…Increased levels of lipids at increased CO2 were associated with stress-induced lipid synthesis due to a possible disruption in the system's pH. [186] Mass production culture set-ups e cultivation system of microalgae culture influences both biomass productivity and the production of essential algal products. Two cultivation systems can achieve large-scale production of microalgae; open raceway ponds and closed bioreactors, each having advantages and limitations.…”

Section: Co2 Supplymentioning

confidence: 99%

Microalgae as sources of green bioactives for health-enhancing food supplements and nutraceuticals: A review of literature

Bhagea

Hossen

Ruhee

et al. 2022

AJBPS

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The world population is ever increasing and so is the need to ensure food security. Food production needs to increase by about 70% within the next 40 years to cater for food consumption. Moreover, with increasing collective consciousness toward food supplementation for improving quality of health, the development of nutraceuticals has gained prominence in disease prevention, treatment, and overall health improvement. However, due to the constant controversial debate of food production for consumption against other uses, the search for better alternatives led to microalgae. Species such as Spirulina, Chlorella, Scenedesmus, and Dunaliella, among many others, are important sources of primary and secondary metabolites that play crucial roles in disease prevention and treatment. Understanding the significance of nutraceuticals and how microalgae can be used to produce those value-added molecules is necessary for any potential commercial exploitation. This review discusses the potential of microalgae to be exploited as promising sources of nutraceuticals. Here, essential biomolecules used as nutraceuticals are explored and their crucial roles in disease prevention, especially cancer, cardiovascular diseases, and strengthening the immune system. The composition of microalgae, which makes them suitable candidates to produce nutraceuticals, is discussed. Furthermore, the multifarious aspects of microalgae cultivation, in terms of cultivation systems and factors affecting biomass production and productivity regarding nutraceutical production, are reviewed. The multiple sustainable facets of microalgae culture, which can help in carbon sequestration, fast biomass production, and boosting health benefits, should interest stakeholders and potential commercial producers. Bioprocessing of microalgae for the extraction and purification of microalgae-based products is also reviewed, focusing on the key methods of pre-treatment, extraction, and purification of microalgal biomass.

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Section: Co2 Supplymentioning

confidence: 99%

Microalgae as sources of green bioactives for health-enhancing food supplements and nutraceuticals: A review of literature

Bhagea

Hossen

Ruhee

et al. 2022

AJBPS

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“…Each exposure was for 30 seconds followed by a saturating pulse. The rest of the calculations were done as per the instrument's instruction manual and previous studies (21).…”

Section: Estimation Of Photosynthetic Efficiency and Capacitymentioning

confidence: 99%

Adaptive laboratory evolution of the fast-growing cyanobacterium Synechococcus elongatus PCC 11801 for improved solvent tolerance

Srivastava

Amanna

Rowden

et al. 2021

Journal of Bioscience and Bioengineering

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“…Briefly, 3 mL of exponentially grown culture (under optimal production condition in shake flask) was dark-adapted for 15-20 min before measurement under the same experimental growth temperature. The F 0 , Fm, Fv/Fm and ETRmax were determined with the saturation pulse method and Rapid Light Curve as per the instruction manual and previous reports [68,69].…”

Section: Determination Of Photosynthetic Efficiency and Capacitymentioning

confidence: 99%

Photosynthetic Co-production of Succinate and Ethylene in a Fast-Growing Cyanobacterium, Synechococcus elongatus PCC 11801

et al. 2020

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Cyanobacteria are emerging as hosts for photoautotrophic production of chemicals. Recent studies have attempted to stretch the limits of photosynthetic production, typically focusing on one product at a time, possibly to minimise the additional burden of product separation. Here, we explore the simultaneous production of two products that can be easily separated: ethylene, a gaseous product, and succinate, an organic acid that accumulates in the culture medium. This was achieved by expressing a single copy of the ethylene forming enzyme (efe) under the control of PcpcB, the inducer-free super-strong promoter of phycocyanin β subunit. We chose the recently reported, fast-growing and robust cyanobacterium, Synechococcus elongatus PCC 11801, as the host strain. A stable recombinant strain was constructed using CRISPR-Cpf1 in a first report of markerless genome editing of this cyanobacterium. Under photoautotrophic conditions, the recombinant strain shows specific productivities of 338.26 and 1044.18 μmole/g dry cell weight/h for ethylene and succinate, respectively. These results compare favourably with the reported productivities for individual products in cyanobacteria that are highly engineered. Metabolome profiling and 13C labelling studies indicate carbon flux redistribution and suggest avenues for further improvement. Our results show that S. elongatus PCC 11801 is a promising candidate for metabolic engineering.

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Effect of elevated carbon dioxide and nitric oxide on the physiological responses of two green algae, Asterarcys quadricellulare and Chlorella sorokiniana

Cited by 18 publications

References 64 publications

Microalgae as sources of green bioactives for health-enhancing food supplements and nutraceuticals: A review of literature

Microalgae as sources of green bioactives for health-enhancing food supplements and nutraceuticals: A review of literature

Adaptive laboratory evolution of the fast-growing cyanobacterium Synechococcus elongatus PCC 11801 for improved solvent tolerance

Photosynthetic Co-production of Succinate and Ethylene in a Fast-Growing Cyanobacterium, Synechococcus elongatus PCC 11801

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