A Biorefinery Approach Integrating Lipid and EPS Augmentation Along with Cr (III) Mitigation by Chlorella minutissima DOI Creative Commons

Sonia Choudhary,

Mansi Tiwari, Krishna Mohan Poluri

et al.

Cells, Journal Year: 2024, Volume and Issue: 13(24), P. 2047 - 2047

Published: Dec. 11, 2024

The quest for cleaner and sustainable energy sources is crucial, considering the current scenario of a steep rise in consumption fuel crisis, exacerbated by diminishing fossil reserves rising pollutants. In particular, bioaccumulation hazardous substances like trivalent chromium has not only disrupted fragile equilibrium ecological system but also poses significant health hazards to humans. Microalgae emerged as promising solution achieving sustainability due their ability remediate contaminants produce greener alternatives such biofuels. This integrated approach provides an ambitious strategy address global concerns pertaining economic stability, environmental degradation, crisis. study investigates intricate defense mechanisms deployed freshwater microalgae Chlorella minutissima response Cr (III) toxicity. microalga achieved impressive 92% removal efficiency with IC50 value 200 ppm, illustrating its extraordinary resilience towards chromium-induced stress. Furthermore, this research embarked on thorough explorations encompassing morphological, pigment-centric, biochemical analyses, aimed at revealing adaptive strategies associated resilience, well dynamics carbon pool flow that contribute enhanced lipid extracellular polysaccharide (EPS) synthesis. FAME profile biodiesel produced complies benchmark established American European regulations, emphasizing suitability high-quality vehicular fuel. Elevated levels ROS, TBARS, osmolytes (such glycine-betaine), along increased activity antioxidant enzymes (CAT, GR, SOD), reveal activation robust against oxidative stress caused (III). finding investigation presents effective framework algal-based biorefinery approach, integrating pollutant detoxification generation vehicular-quality additional value-added compounds vital under concept circular economy.

Language: Английский

Amphora coffeiformis extracellular polymeric substances and their potential applications in lead removal DOI
Jihen Elleuch, Marwa Drira,

Imtinen Ghribi

et al.

Antonie van Leeuwenhoek, Journal Year: 2025, Volume and Issue: 118(3)

Published: Feb. 3, 2025

Language: Английский

Citations

1
Toxicity potential assessment of silicon dioxide (SiO2) and zinc oxide (ZnO) on green microalgae Chlamydomonas sp. strain GO1 DOI

Oumayma Ghariani,

Jihen Frikha Elleuch, Bochra Gargouri

et al.

International Microbiology, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 13, 2025

Language: Английский

Citations

1
Toxicological Effects of Silver-Modified Bentonite Nanocomposites on Microalgae: Impact on Cell Growth, Antioxidant Enzymes, and Gene Expression DOI Creative Commons

Oumayma Ghariani,

Jihen Elleuch, Anna Maria Ferretti

et al.

Nanomaterials, Journal Year: 2025, Volume and Issue: 15(8), P. 629 - 629

Published: April 20, 2025

The increasing use of nanostructured silver-containing inorganic materials raises concerns about their impact on aquatic organisms. This study assessed the toxicity silver-modified bentonite composites Chlamydomonas sp. Two were tested: silver-exchanged (Ben-Ag) and its reduced form (Ben-Ag (H2)).Microalgae exposed to 0.5 IC50, 1.5 2 IC50. Ben-Ag showed higher than (H2), which even promoted algal growth at low doses. Fluorescence microscopy revealed morphological shrinkage in treated cells. Increased phenol content, elevated malondialdehyde (MDA) levels, altered antioxidant enzyme activities further confirmed toxicity, along with photosynthetic pigments. Transcriptomic analysis significant changes gene expression under exposure. Genes involved photosynthesis (petB, psbL), caspase activity (casp), carotenoid metabolism (Q2CHY) down-regulated, indicating stress-induced damage. In contrast, genes encoding stress response enzymes (SOD, peroxidase), carbon (rbcL, PGQ1), β-carotene biosynthesis (Q2BKT) up-regulated, reflecting cellular defense mechanisms. Overall, highlights high sp., emphasizing importance evaluating environmental risks before using such environments.

Language: Английский

Citations

0
A Biorefinery Approach Integrating Lipid and EPS Augmentation Along with Cr (III) Mitigation by Chlorella minutissima DOI Creative Commons

Sonia Choudhary,

Mansi Tiwari, Krishna Mohan Poluri

et al.

Cells, Journal Year: 2024, Volume and Issue: 13(24), P. 2047 - 2047

Published: Dec. 11, 2024

The quest for cleaner and sustainable energy sources is crucial, considering the current scenario of a steep rise in consumption fuel crisis, exacerbated by diminishing fossil reserves rising pollutants. In particular, bioaccumulation hazardous substances like trivalent chromium has not only disrupted fragile equilibrium ecological system but also poses significant health hazards to humans. Microalgae emerged as promising solution achieving sustainability due their ability remediate contaminants produce greener alternatives such biofuels. This integrated approach provides an ambitious strategy address global concerns pertaining economic stability, environmental degradation, crisis. study investigates intricate defense mechanisms deployed freshwater microalgae Chlorella minutissima response Cr (III) toxicity. microalga achieved impressive 92% removal efficiency with IC50 value 200 ppm, illustrating its extraordinary resilience towards chromium-induced stress. Furthermore, this research embarked on thorough explorations encompassing morphological, pigment-centric, biochemical analyses, aimed at revealing adaptive strategies associated resilience, well dynamics carbon pool flow that contribute enhanced lipid extracellular polysaccharide (EPS) synthesis. FAME profile biodiesel produced complies benchmark established American European regulations, emphasizing suitability high-quality vehicular fuel. Elevated levels ROS, TBARS, osmolytes (such glycine-betaine), along increased activity antioxidant enzymes (CAT, GR, SOD), reveal activation robust against oxidative stress caused (III). finding investigation presents effective framework algal-based biorefinery approach, integrating pollutant detoxification generation vehicular-quality additional value-added compounds vital under concept circular economy.

Language: Английский

Citations

0