Effects of Treatment and Pre-treatment of Ethanolamine on Production of Metabolites in Haematococcus pluvialis

Rezazadeh, Hamzeh; Mansoori, Hakimeh; Amandadi, Mojdeh

doi:10.1007/s40995-022-01378-3

Cited by 3 publications

(2 citation statements)

References 33 publications

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“…These findings may suggest that lipid metabolism can be stimulated depending on the ETA concentration and on the microalgal species involved. This aspect seems to be confirmed by a recent work on the effect of ETA on the production of metabolites in Haematococcus pluvialis [44]. The authors found out that ETA treatment improved the amount of carotenoids and carbohydrates in red cells, but the amount of proteins and biomass decreased in green cells.…”

Section: Influence Of Metabolic and Chemical Stress On C Zofingiensis...supporting

confidence: 61%

Lipid content and fatty acid methyl ester profile by Chromochloris zofingiensis under chemical and metabolic stress

Vitali

Lolli

Sansone

et al. 2023

Biomass Conv. Bioref.

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This work encompasses the effect of chemical and metabolic stress on lipid content and fatty acid methyl ester (FAME) profile by Chromochloris zofingiensis. To this aim, a control medium amended with specific concentrations of sodium chloride (15 g L−1, 30 g L−1, and 60 g L−1) and of ethanolamine (ETA) and triethylamine (TEA) (0.050 g L−1, 0.100 g L−1, and 0.150 g L−1) has been used for the cultivation of this strain. A better lipid content than the control was obtained under salt stress compared to chemical stress induced by ETA and TEA, while the effect on lipid productivity was negligible. Thirty grams per liter of NaCl allowed to obtain the highest value of the total lipid content (30.33% DW) compared to the control (20% DW). FAME profile revealed a 97.50–98.99% composition in C16–C18 with no statistically meaningful differences among the three concentrations of salt and chemicals tested. The most represented fatty acids were C18:1 oleic (> 45%wt), C16:0 palmitic (> 34%wt), and C18:2 linoleic (> 21%wt) obtained under 60 and 30 mg L−1 of NaCl and 0.150 g L−1 of ETA, respectively. When using 0.150 g L−1 of ETA, unsaturated fatty acids reached the highest portion (67.53%wt) than the control (62.26%wt). A quantitative and qualitative analysis of all FAMEs has been carried out to improve biodiesel properties. Chemical and physical properties of algal lipid–derived biodiesel showed a compliance with ASTM standards for unmixed biodiesel and the main European regulations (EN 14214 and EN 590) for the quality of biodiesel resulted fulfilled. Therefore, a profitable biodiesel can be obtained when cultivating C. zofingiensis under osmotic stress. Graphical abstract

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Section: Influence Of Metabolic and Chemical Stress On C Zofingiensis...supporting

confidence: 61%

Lipid content and fatty acid methyl ester profile by Chromochloris zofingiensis under chemical and metabolic stress

Vitali

Lolli

Sansone

et al. 2023

Biomass Conv. Bioref.

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“…The algae growth rate was measured for fourteen days in BBM with pH 7 (Rezazadeh et al 2022). In order to perform the treatment (green stage), algae were cultured in Erlenmeyer akes with 150 ml BBM with different concentrations of phenol (0, 50, 100, and 150 mg l − 1 ).…”

Section: Algae Growth Ratementioning

confidence: 99%

Degradation potential, use and growth promotion and antioxidant properties of Haematococcus Pluvialis in algae cell culture system under the influence of phenol

Rezazadeh

Mansouri

2023

Preprint

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In response to highly severe environmental conditions, the accumulation of vast levels of astaxanthin by Haematococcus Pluvialis is a recorded event. However, there is little investigation into the nature and possible interactions of the poisonous chemical factors on this pigment's synthesis. In this study, H. pluvialis was exposed to the environment phenol to determine cellular responses, synthesis of pigments, and astaxanthin. The phenol influences in different concentrations (0, 50, 100, and 150 mg l-1) were checked out by two ways; a treatment (14 days) and pre-treatment (7 days + 7 days) done on green and red stages of H. pluvialis. The amount of carotenoid, protein, and dry weight increased, but the amount of carbohydrates and chlorophyll reduced in treated green cells with a phenol. The pre-treatment increased the amount of chlorophyll a, carbohydrates, and carotenoids in green cells, but it did not significantly affect the dry weight, protein of green cells, and the amount of protein in red cells. The phenol treatment also enhanced the carotenoid, carbohydrate, dry weight, and protein of red cells. In general, the treatment and pre-treatment of phenol in the green phase and low concentrations significantly affected the alga. However, the pre-treatment had a more considerable effect on red cells in high concentrations. While the treatment in the high concentrations had notable effects on the xanthophylls, pre-treatment had the same effects on the xanthophylls at low concentrations. These results show that H. pluvialis can adapt to toxic environments due to the xanthophylls.

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Metabolic Response of Haematococcus lacustris under the Influence of Induced-Stress: Strategies and Exogenous Toxicity of Phenol

Rezazadeh,

Mansouri

2024

Russ J Plant Physiol

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Effects of Treatment and Pre-treatment of Ethanolamine on Production of Metabolites in Haematococcus pluvialis

Cited by 3 publications

References 33 publications

Lipid content and fatty acid methyl ester profile by Chromochloris zofingiensis under chemical and metabolic stress

Lipid content and fatty acid methyl ester profile by Chromochloris zofingiensis under chemical and metabolic stress

Degradation potential, use and growth promotion and antioxidant properties of Haematococcus Pluvialis in algae cell culture system under the influence of phenol

Metabolic Response of Haematococcus lacustris under the Influence of Induced-Stress: Strategies and Exogenous Toxicity of Phenol

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