Biosorption of uranium by immobilized Nostoc sp. and Scenedesmus sp.: kinetic and equilibrium modeling.

Different activities related to uranium mining and nuclear industry may have a negative impact on the environment. Bioremediation of nuclear pollutants using microorganisms is an effective, safe, and economic method. The present study compared the uranium biosorption efficiency of two immobilized algae: Nostoc sp.

Disparity of the carotenoids antioxidant properties of wild-type and -transgenic strains under three environmental stresses.

Unlabelled: Two strains of the halophilic alga , a wild type (WT) and a transgenic strain () containing an exogenous phytoene synthase gene (), were used to investigate the growth, carotenoid accumulation, and carotenoid antioxidant properties under nitrogen starvation, cobalt and biochar treatments. had higher carotenoid content (1.8 times) compared to the WT.

Biosorption of cyanate by two strains of : evaluation of the removal efficiency and antioxidants activity.

Two strains of the chlorophyte , a wild type (WT) and a transgenic strain (C.CYN) contained an exogenous cyanase gene (), were used to investigate the growth and cyanate biosorption capability through the analysis of the adsorption equilibrium isotherm. The potential antioxidants activity of the algal strains was also investigated under cyanate concentration.

Role of pH on antioxidants production by Spirulina (Arthrospira) platensis.

Algae can tolerate a broad range of growing conditions but extreme conditions may lead to the generation of highly dangerous reactive oxygen species (ROS), which may cause the deterioration of cell metabolism and damage cellular components. The antioxidants produced by algae alleviate the harmful effects of ROS. While the enhancement of antioxidant production in blue green algae under stress has been reported, the antioxidant response to changes in pH levels requires further investigation.

C-Phycocyanin inhibits cell proliferation and may induce apoptosis in human HepG2 cells.

C-Phycocyanin (C-Pc) is one of the major biliprotein pigments of unicellular cyanbacterium of Spirulina platenesis, it has nutritional, medicinal, and hepatoprotectant application. The growth and multiplication of human hepatoma cell lines (HepG2) under the effect of different concentrations of C-PC (0.8, 1.