Maximizing intrinsic value of microalgae using multi-parameter study: conjoint effect of organic carbon, nitrate, and phosphate supplementation

Ghosh, Atreyee; Sangtani, Rimjhim; Samadhiya, Kanchan; Kiran, Boggavarapu

doi:10.1007/s10098-021-02192-y

Cited by 10 publications

(3 citation statements)

References 36 publications

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“…Light intensity is an essential factor for regulating microalgae growth and biomass production. This confirms that mixotrophic cultivation is more practical for microalgae biomass production because nutrients can be used with mixotrophic culture, catering to mediums and energy rather than building the microalgae cells (Ghosh et al 2021;Marella et al 2021). It is confirmed that microalgae growth is proportionate to the CO2 fixation level (Xu et al 2019;Chen et al 2020;Zeng et al 2021).…”

Section: Light Intensitysupporting

confidence: 53%

Optimization of the culture of Chlorella sorokiniana PA.91 by RSM: effect of temperature, light intensity, and MgAC-NPs

Bisheh

Rad

2023

Environ Sci Pollut Res

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The condition of the cultivation of newly isolated strains, Chlorella Sorokiniana PA.91, was optimized for the first time for magnesium Amino clay nanoparticles (MgAC-NPs) at various temperatures and light intensities in the culture medium of municipal wastewater (MWW) by Central Composite Design in the Response Surface Methodology (RSM-CCD). This study studied MgAC-NPs synthesized with their characteristics FE-SEM, EDX, XRD, and FT-IR. The synthesized MgAC-NPs were naturally stable, cubic-shaped, within the size range of 30 -60 nm. The optimization results show that at culture conditions of 20 °C, 37 μmol m -2 s -1 and 0.05 g L -1 microalga MgAC-NPs have the best growth productivity and biomass performance. Maximum dry biomass weight (55.41 %), specific growth rate (30.26%), chlorophyll (81.26%), and carotenoids (35.71%) were achieved under the optimized condition. Experimental results displayed that C. S PA.91 has a high capacity for lipid extraction (1.36 g L -1 ) and significant lipid efficiency (45.1%). Also, in 0.2 g L -1 of the MgAC-NPs, COD removal efficiency (91.1%) from C.S PA.91 -MgAC-NPs showed. These results showed the potential of C.S PA.91 -MgAC-NPs for nutrient removal in wastewater treatment plants and their quality as sources of biodiesel.

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Section: Light Intensitysupporting

confidence: 53%

Optimization of the culture of Chlorella sorokiniana PA.91 by RSM: effect of temperature, light intensity, and MgAC-NPs

Bisheh

Rad

2023

Environ Sci Pollut Res

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“…The source, form, and availability of N and P have been deemed the key parameters affecting the growth and profiling of the chemical composition and enzymatic activity of microalgae [23]. Kim et al (2016) investigated the effect of nine various nitrogen sources, i.e., NH 4 HCO 3 , NH 4 Cl, NH 4 NO 3 , KNO 3 , NaNO 3 , urea, glycine, and yeast extract (organic nitrogen), on the effectiveness of T. subcordiformis biomass production.…”

Section: Introductionmentioning

confidence: 99%

The Cultivation of Biohydrogen-Producing Tetraselmis subcordiformis Microalgae as the Third Stage of Dairy Wastewater Aerobic Treatment System

et al. 2022

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The development of wastewater treatment systems, including competitive methods for nitrogen and phosphorus removal, is focused on intensifying final technological effects with due care taken for economic and environmental concerns. Given the possibility of integrating wastewater treatment processes with biofuel production, the prospective seems to be technologies harnessing microalgal biomass. The present study aimed to verify the feasibility of applying T. subcordiformis genus microalgae as the third stage of the dairy wastewater treatment process and to determine microalgae biomass production effectiveness and hydrogen yield in the biophotolysis process. The study proved that microalgae cultivation with dairy wastewater was nearly 35% less effective compared to that with a chemically pure medium. Nitrogen and phosphorus compounds contaminating wastewater were found to represent an available source of nutrients for T. subcordiformis population. The volume of hydrogen produced ranged from 116 ± 7 cm3 to 162 ± 7 cm3, and the percentage of H2 content in the biogas ranged from 55.4 ± 2.2% to 57.2 ± 4.1%. A significantly higher hydrogen yield per initial biomass concentration, reaching 69 ± 4.2 cm3/go.d.m., was determined in the variant with wastewater accounting for 50% of the culture medium. The respective value noted in the control respirometer was 54 ± 2.1 cm3/go.d.m.

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“…Glucose and fructose could enhance the mixotrophic growth of various microalgal strains such as Scenedesmus sp. [26], Chorella sp. [27], and Monoraphidium sp.…”

Section: Comparative Photoautotrophic and Mixotrophic Growth Of Coela...mentioning

confidence: 99%

Microalga Coelastrella sp. Cultivation on Unhydrolyzed Molasses-Based Medium towards the Optimization of Conditions for Growth and Biomass Production under Mixotrophic Cultivation

2023

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Improving biomass production with the utilization of low-cost substrate is a crucial approach to overcome the hindrance of high cost in developing large-scale microalgae production. The microalga Coelastrella sp. KKU-P1 was mixotrophically cultivated using unhydrolyzed molasses as a carbon source, with the key environmental conditions being varied in order to maximize biomass production. The batch cultivation in flasks achieved the highest biomass production of 3.81 g/L, under an initial pH 5.0, a substrate to inoculum ratio of 100:3, an initial total sugar concentration of 10 g/L, and a sodium nitrate concentration of 1.5 g/L with continuous light illumination at 23.7 W/m2. The photobioreactor cultivation results indicated that CO2 supplementation did not improve biomass production. An ambient concentration of CO2 was sufficient to promote the mixotrophic growth of the microalga as indicated by the highest biomass production of 4.28 g/L with 33.91% protein, 46.71% carbohydrate, and 15.10% lipid. The results of the biochemical composition analysis suggest that the microalgal biomass obtained is promising as a source of essential amino acids and pigments as well as saturated and monounsaturated fatty acids. This research highlights the potential for bioresource production via microalgal mixotrophic cultivation using untreated molasses as a low-cost raw material.

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Maximizing intrinsic value of microalgae using multi-parameter study: conjoint effect of organic carbon, nitrate, and phosphate supplementation

Cited by 10 publications

References 36 publications

Optimization of the culture of Chlorella sorokiniana PA.91 by RSM: effect of temperature, light intensity, and MgAC-NPs

Optimization of the culture of Chlorella sorokiniana PA.91 by RSM: effect of temperature, light intensity, and MgAC-NPs

The Cultivation of Biohydrogen-Producing Tetraselmis subcordiformis Microalgae as the Third Stage of Dairy Wastewater Aerobic Treatment System

Microalga Coelastrella sp. Cultivation on Unhydrolyzed Molasses-Based Medium towards the Optimization of Conditions for Growth and Biomass Production under Mixotrophic Cultivation

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