Carbon, nitrogen, and phosphorus removal, and lipid production by three saline microalgae grown in synthetic wastewater irradiated with different photon fluxes

Alva, Manuel Sacristán de; Pabello, Víctor Manuel Luna; Ledesma, María Teresa Orta; Gómez, Modesto Javier Cruz

doi:10.1016/j.algal.2018.07.006

Cited by 58 publications

(18 citation statements)

References 36 publications

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“…Consistently, adequate availability of the nitrogen and phosphorus content during log phase of the microalgal cultivation facilitated the growth rate of the cells. Meanwhile, effective consumption of these nutrient molecules by the algal cells during log phase resulted in reduced availability of N and P content during the stationary phase, thereby resulted in induced lipid accumulation (de Alva et al, 2018). This observation is in accordance with the previous report which implied that reduced nutrient concentration during the stationary phase induced lipid accumulation (Ren et al, 2019).…”

Section: Bioprocess Monitoring and Lipidomic Analyses Revealed The Posupporting

confidence: 91%

Plastidial and ER Triacylglycerol Biosynthesis in a Growth Phase-Dependent Manner in the Heterokont Nannochloropsis oceanica

Huang

Balamurugan

et al. 2020

Front. Mar. Sci.

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Though microalgae have been considered the potential resource for lipid production, native strains are unable to meet the industrial demand. Here, we aim to uncover the complex molecular relationship between algal growth and lipid accumulation. Transcriptomic analysis revealed the crucial role of plastidial fatty acid and triacylglycerol (TAG) biosynthetic machinery in lipid overproduction. The expression of key fatty acid biosynthetic genes such as acetyl-CoA carboxylase (ACCase), malonyl CoA−acyl carrier protein transacylase (MCAT), 3-ketoacyl synthase (KAS), 3-ketoacyl-ACP reductase (KAR) increased during day 10-13 of cultivation, particularly plastidial TAG biosynthetic genes substantially increased. However, expression of genes involved in ER TAG biosynthesis increased only in the stationary phase, which implied the potential of plastidial TAG biosynthesis. This report provides a novel insight into the growth-phase dependent lipogenic orchestration, and also uncovers the signature genes and plastidial TAG biosynthesis that might be extrapolated for improving lipogenic traits of algae.

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Section: Bioprocess Monitoring and Lipidomic Analyses Revealed The Posupporting

confidence: 91%

Plastidial and ER Triacylglycerol Biosynthesis in a Growth Phase-Dependent Manner in the Heterokont Nannochloropsis oceanica

Huang

Balamurugan

et al. 2020

Front. Mar. Sci.

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“…Microalgae mainly produce lipids as an energy reserve during the stationary growth phase [48], which was observed to be relatively short in the postculture wastewater in the present study. The nitrogen or the phosphorus deficiency could increase the lipid content in algal cells [49,50].…”

Section: Lipid Contentmentioning

confidence: 50%

Production of Microalgal Biomass Using Aquaculture Wastewater as Growth Medium

Hawrot-Paw

Koniuszy

Gałczyńska

et al. 2019

Water

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Aquaculture wastewater contains a huge amount of substances that can cause environmental pollution. However, microalgae can absorb these compounds and convert them into useful biomass. In this study, Chlorella minutissima was grown in the wastewater resulting from saline aquaculture. The microalgae were found to effectively utilize nitrogen and phosphorus in the wastewater for its growth. During wastewater treatment, the cell density increased almost fivefold compared to the initial value (OD 680 0.502). Moreover, batch culture resulted in the maximum biomass concentration and productivity of 4.77 g/L and 0.55 g/L/day, respectively. The contents of total nitrogen and total phosphorus in wastewater decreased by 88% and over 99%, respectively. In addition, the content of N-NO 3 was reduced by 88.6%, N-NO 2 by 74.3%, and dissolved orthophosphates (V) by 99%. At the beginning and throughout the experiment, the content of N-NH 4 in wastewater remained below 0.05 mg/L. Furthermore, a high lipid content of 46.4% (w/w) was also obtained from the studied microalgae.

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“…en el presente estudio (Tabla 2). Otros autores han estudiado la remoción de nutrientes con microalgas del género Tetraselmis, Sacristán de Alva y colaboradores obtuvieron remociones de nitrógeno total de más del 95%, y de ortofosfatos de más del 98% [23], Tetraselmis suecica removió 79,4% de fósforo total al día 8 y 83% al día 16 alcanzando concentración de biomasa de 0,55 g L -1 [24]. En la Tabla 2, se presenta un resumen de los parámetros cinéticos obtenidos durante los experimentos realizados en esta investigación y se aprecia como las condiciones hidrodinámicas del FBR mejoran los parámetros cinéticos como la velocidad especifica de crecimiento y el tiempo de duplicación.…”

Section: Consumo De Salesunclassified

Crecimiento de Tetraselmis sp. Empleando fertilizante como medio de cultivo

Vallejo¹,

Cárdenas²

2021

revion

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Las microalgas juegan un rol muy importante en la cadena alimenticia de la acuicultura, ya que estas son utilizadas en la nutrición y cría de moluscos, camarones y peces en sus diferentes etapas de crecimiento. Tetraselmis sp, es una microalga reconocida por sus aplicaciones como alimento vivo en acuicultura y sus parámetros de crecimiento pueden variar de acuerdo a las condiciones de cultivo. En este sentido fueron evaluadas diferentes condiciones de crecimiento como medio de cultivo empleado fertilizante comercial, fotoperiodo (12:12 y 24:0) y salinidad (0-55 g l-1) para obtener diferentes parámetros cinéticos de crecimiento. Las mejores condiciones de cultivo se alcanzaron con un fertilizante comercial, un fotoperiodo 12:12, salinidad del 35 g l-1, una velocidad especifica de crecimiento de 1,071 d-1, tiempo de duplicación de 0,64 días, rendimientos (Yx/s) de biomasa respecto al consumo de nitrato, fosforo y amonio de 4,3; 37,7; 10,5 (g g-1) respectivamente, con un contenido de proteínas del 55% (p/p). Adicionalmente, se evaluó el modelo de Gompertz para la producción de biomasa presentando un buen ajuste (r2=0,9) entre el modelo y los resultados experimentales.

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Carbon, nitrogen, and phosphorus removal, and lipid production by three saline microalgae grown in synthetic wastewater irradiated with different photon fluxes

Cited by 58 publications

References 36 publications

Plastidial and ER Triacylglycerol Biosynthesis in a Growth Phase-Dependent Manner in the Heterokont Nannochloropsis oceanica

Plastidial and ER Triacylglycerol Biosynthesis in a Growth Phase-Dependent Manner in the Heterokont Nannochloropsis oceanica

Production of Microalgal Biomass Using Aquaculture Wastewater as Growth Medium

Crecimiento de Tetraselmis sp. Empleando fertilizante como medio de cultivo

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