A Review on Synchronous Microalgal Lipid Enhancement and Wastewater Treatment

Barua, Visva Bharati; Munir, Mariya

doi:10.3390/en14227687

Cited by 5 publications

(2 citation statements)

References 133 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These Lipid droplets are deposited in seeds, pollen, and non-seeds organs such as leaves, roots, fruits, and stems [24][25][26][27]. Notably, microalgae synthesized the lipid droplets primarily during the stress conditions [28]. Lipid droplets play diverse and crucial roles in biological activities within plants, contributing to response to stress, growth, development, and pathogen resistance [29].…”

Section: Endosymbiotic Symbiodiniaceae Species Lipid Droplets Structu...mentioning

confidence: 99%

Lipid Droplets in Endosymbiotic Symbiodiniaceae spp. Associated with Corals

Pasaribu,

Purba,

Dewanti

et al. 2024

Plants

View full text Add to dashboard Cite

Symbiodiniaceae species is a dinoflagellate that plays a crucial role in maintaining the symbiotic mutualism of reef-building corals in the ocean. Reef-building corals, as hosts, provide the nutrition and habitat to endosymbiotic Symbiodiniaceae species and Symbiodiniaceae species transfer the fixed carbon to the corals for growth. Environmental stress is one of the factors impacting the physiology and metabolism of the corals-dinoflagellate association. The environmental stress triggers the metabolic changes in Symbiodiniaceae species resulting in an increase in the production of survival organelles related to storage components such as lipid droplets (LD). LDs are found as unique organelles, mainly composed of triacylglycerols surrounded by phospholipids embedded with some proteins. To date, it has been reported that investigation of lipid droplets significantly present in animals and plants led to the understanding that lipid droplets play a key role in lipid storage and transport. The major challenge of investigating endosymbiotic Symbiodiniaceae species lies in overcoming the strategies in isolating lesser lipid droplets present in its intercellular cells. Here, we review the most recent highlights of LD research in endosymbiotic Symbiodiniaceae species particularly focusing on LD biogenesis, mechanism, and major lipid droplet proteins. Moreover, to comprehend potential novel ways of energy storage in the symbiotic interaction between endosymbiotic Symbiodiniaceae species and its host, we also emphasize recent emerging environmental factors such as temperature, ocean acidification, and nutrient impacting the accumulation of lipid droplets in endosymbiotic Symbiodiniaceae species.

show abstract

Section: Endosymbiotic Symbiodiniaceae Species Lipid Droplets Structu...mentioning

confidence: 99%

Lipid Droplets in Endosymbiotic Symbiodiniaceae spp. Associated with Corals

Pasaribu,

Purba,

Dewanti

et al. 2024

Plants

View full text Add to dashboard Cite

show abstract

“…On the other hand, the liquid phase is difficult to neutralize due to its large volume and high concentration of pollutants [19]. Many studies have described the possibility of using post-fermentation leachate in microalgae biomass proliferation as a source of biogenic compounds and microelements in the culture medium [20,21]. The high concentration of CO 2 in the leachate has been proved to intensify the growth rate of microalgae, which has a direct impact on the efficiency of pollutant degradation [22].…”

Section: Introductionmentioning

confidence: 99%

The Possibility of Deploying CO2 from Biogas Combustion to Improve the Productivity of a Periodical Chlorella vulgaris Culture

Zieliński¹,

Kazimierowicz²,

Dębowski³

2023

Front. Biosci. (Elite Ed)

View full text Add to dashboard Cite

Background: Carbon dioxide (CO2) is the major contributor to the global emissions of greenhouse gases, which necessitates the search for its fixation and utilization methods. Engaging photosynthesizing microorganisms for its biosequestration is one of the prospective technologies applied to this end. Considering the paucity of literature works on the possibilities of deploying CO2 from biogas combustion to intensify microalgae production, this research aimed to identify the feasibility of using this type of CO2 in Chlorella vulgaris culture by evaluating biomass production yield and CO2 biosequestration effectiveness. Methods: The experiment was performed in glass PBR, in which the culture medium occupied the volume of 1.0 dm 3 , and the gaseous phase occupied 0.3 dm 3 . The reactors were continuously illuminated by fluorescent lamps. The temperature of flue gases and air fed to reactors, and culture temperature was 20 °C ± 2 °C. Results: The use of flue gases promoted a more rapid biomass growth, reaching 77.8 ± 3.1 mgVS/dm 3 •d, and produced a higher microalgae concentration, i.e., 780 ± 58 mgVS/dm 3 . Nevertheless, the flue gas-fed culture turned out to be highly sensitive, which was manifested in a decreased culture medium pH and relatively quickly achieved decay phase of the C. vulgaris population. The microalgae effectively assimilated CO2, reducing its concentration from 13 ± 1% to 1 ± 0.5% in the effluent from the photobioreactor. Conclusions: The flue gases were found not to affect the qualitative composition of the microalgal biomass. However, strict control and monitoring of microalgae biomass production is necessary, as well as rapid responses in flue gas-fed systems. This is an important hint for potential operators of such technological systems on the large scale. Regardless of the possibility of deploying microalgae to fix and utilize CO2, a justified avenue of research is to look for cheap sources of CO2-rich gases.

show abstract

Nitrogen Removal Characteristics of a Cold-Tolerant Aerobic Denitrification Bacterium, Pseudomonas sp. 41

Wei

et al. 2022

Catalysts

View full text Add to dashboard Cite

Nitrogen pollution of surface water is the main cause of water eutrophication, and is considered a worldwide challenge in surface water treatment. Currently, the total nitrogen (TN) content in the effluent of wastewater treatment plants (WWTPs) is still high at low winter temperatures, mainly as a result of the incomplete removal of nitrate (NO3−-N). In this research, a novel aerobic denitrifier identified as Pseudomonas sp. 41 was isolated from municipal activated sludge; this strain could rapidly degrade a high concentration of NO3−-N at low temperature. Strain 41 completely converted 100 mg/L NO3−-N in 48 h at 15 °C, and the maximum removal rate reached 4.0 mg/L/h. The functional genes napA, nirS, norB and nosZ were successfully amplified, which provided a theoretical support for the aerobic denitrification capacity of strain 41. In particular, the results of denitrification experiments showed that strain 41 could perform aerobic denitrification under the catalysis of NAP. Nitrogen balance analysis revealed that strain 41 degraded NO3−-N mainly through assimilation (52.35%) and aerobic denitrification (44.02%), and combined with the gene amplification results, the nitrate metabolism pathway of strain 41 was proposed. Single-factor experiments confirmed that strain 41 possessed the best nitrogen removal performance under the conditions of sodium citrate as carbon source, C/N ratio 10, pH 8, temperature 15–30 °C and rotation speed 120 rpm. Meanwhile, the bioaugmentation test manifested that the immobilized strain 41 remarkably improved the denitrification efficiency and shortened the reaction time in the treatment of synthetic wastewater.

show abstract

A Review on Synchronous Microalgal Lipid Enhancement and Wastewater Treatment

Cited by 5 publications

References 133 publications

Lipid Droplets in Endosymbiotic Symbiodiniaceae spp. Associated with Corals

Lipid Droplets in Endosymbiotic Symbiodiniaceae spp. Associated with Corals

The Possibility of Deploying CO2 from Biogas Combustion to Improve the Productivity of a Periodical Chlorella vulgaris Culture

Nitrogen Removal Characteristics of a Cold-Tolerant Aerobic Denitrification Bacterium, Pseudomonas sp. 41

Contact Info

Product

Resources

About