Effects of nitrogen concentration on growth, biomass, and biochemical composition of <i>Desmodesmus communis</i> (E. Hegewald) E. Hegewald

Akgül, Füsun

doi:10.1080/10826068.2019.1697884

Cited by 12 publications

(2 citation statements)

References 59 publications

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“…Nitrogen is used in its organic form as the building block of biological molecules such as proteins and lipids in all living organisms. The metabolic pathway of microalgae can utilise nitrogen in its inorganic form as nitrates, ammonia, nitrogen gas or nitric acid and converts them into its organic form by a process called assimilation (Akgul et al 2020). Microalgae assimilates nitrate and nitrites which is then reduced to ammonium by biological catalysts nitrate reductase and nitrite reductase.…”

Section: Wastewater As a Nutritional Sourcementioning

confidence: 99%

Valorization of microalgae biomass into bioproducts promoting circular bioeconomy: a holistic approach of bioremediation and biorefinery

et al. 2021

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The need for alternative source of fuel has demanded the cultivation of 3rd generation feedstock which includes microalgae, seaweed and cyanobacteria. These phototrophic organisms are unique in a sense that they utilise natural sources like sunlight, water and CO 2 for their growth and metabolism thereby producing diverse products that can be processed to produce biofuel, biochemical, nutraceuticals, feed, biofertilizer and other value added products. But due to low biomass productivity and high harvesting cost, microalgae-based production have not received much attention. Therefore, this review provides the state of the art of the microalgae based biorefinery approach to define an economical and sustainable process. The three major segments that need to be considered for economic microalgae biorefinery is low cost nutrient source, efficient harvesting methods and production of by-products with high market value. This review has outlined the use of various wastewater as nutrient source for simultaneous biomass production and bioremediation. Further, it has highlighted the common harvesting methods used for microalgae and also described various products from both raw biomass and delipidified microalgae residues in order to establish a sustainable, economical microalgae biorefinery with a touch of circular bioeconomy. This review has also discussed various challenges to be considered followed by a techno-economic analysis of the microalgae based biorefinery model.

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Section: Wastewater As a Nutritional Sourcementioning

confidence: 99%

Valorization of microalgae biomass into bioproducts promoting circular bioeconomy: a holistic approach of bioremediation and biorefinery

et al. 2021

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“…Various studies of microalgae have demonstrated that lipid productivity could be altered by several different factors, such as carbon dioxide levels, temperature, light intensity, nutrient concentrations, metal/ion stress [ 7 , 8 , 9 ]. Light intensity is an important parameter as it has been shown to drastically affect the growth of microalgae and their lipid content: low and high light intensity have been shown to cause unfavorable growth in different species of microalgae, low irradiance induces the formation of polyunsaturated fatty acids (PUFAs) whereas high intensity decreases total polar lipid content [ 4 , 10 , 11 , 12 ].…”

Section: Introductionmentioning

confidence: 99%

The Influence of Light and Nutrient Starvation on Morphology, Biomass and Lipid Content in Seven Strains of Green Microalgae as a Source of Biodiesel

et al. 2020

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The development of clean and renewable energy sources is currently one of the most important challenges facing the world. Although research interests in algae-based energy have been increasing in the last decade, only a small percentage of the bewildering diversity exhibited by microalgae has been investigated for biodiesel production. In this work, seven strains of green microalgae belonging to the genera Scenedesmus, Tetradesmus and Desmodesmus were grown in liquid medium with or without a nitrogen (N) source—at two different irradiances (120 ± 20 and 200 ± 20 μmol photons m−2 s−1)—to evaluate biomass production and FAME (fatty acid methyl esters) content for biodiesel production. The strains of Tetradesmus obliquus and Desmodesmus abundans grown in N-deprived medium showed the highest FAME content (22.0% and 34.6%, respectively); lipid profile characterization highlighted the abundance of saturated FAME (as C16:0 and C18:0) that favors better viscosity (flow properties) and applicability of biodiesel at low temperatures. Light microscopy and confocal laser scanning microscopy observations were employed as a fast method to monitor the vital status of cells and lipid droplet accumulation after Nile red staining in different culture conditions.

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In vitro Antibacterial Activity of Palmitoleic Acid Isolated from Filamentous Microalga Tribonema minus Against Fish Pathogen Streptococcus agalactiae

Wang

Guo

Cao

et al. 2022

J. Ocean Univ. China

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Effects of nitrogen concentration on growth, biomass, and biochemical composition of Desmodesmus communis (E. Hegewald) E. Hegewald

Cited by 12 publications

References 59 publications

Valorization of microalgae biomass into bioproducts promoting circular bioeconomy: a holistic approach of bioremediation and biorefinery

Valorization of microalgae biomass into bioproducts promoting circular bioeconomy: a holistic approach of bioremediation and biorefinery

The Influence of Light and Nutrient Starvation on Morphology, Biomass and Lipid Content in Seven Strains of Green Microalgae as a Source of Biodiesel

In vitro Antibacterial Activity of Palmitoleic Acid Isolated from Filamentous Microalga Tribonema minus Against Fish Pathogen Streptococcus agalactiae

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