Cells of Dunaliella tertiolecta from the log phase of growth were broken by rapid extrusion at low pressure through a Yeda press and the chloroplasts were isolated by centrifugation through a Percoll gradient. Osmolarity of the growth media, the suspending media, and the Percoll gradient was kept identical to minimize change in chloroplast volume and mitochondrial entrapment. The isolated intac...

Antifouling substances play a crucial role in inhibiting fouling and adhesion due to their broad-spectrum non-toxic advantages. Nevertheless, the excessive release of antifouling agents shortens service life coating. In this study, we investigated performance an ethanol extract from root Stellera chamaejasme (Sc) through algal experiments. The interaction between Sc algae (Chlorella Dunaliella ...

− New techniques – called software sensors – issued from the non-linear automatic control field and initially developed for non-linear chemical systems have been applied to a continuous culture of phytoplankton. A software sensor (or ‘observer’) combines an analytical differential equation based model and partial measurements of the system in order to estimate the non-measured state variables. ...

The results of a series of competition experiments between the chlorr hyte Dunaliella tertiolecta (Dun) Butcher and the diatom Phaeodactylum tricomutum (TFX-l) Bc,nlin demonstrate conclusively that Phaeodactylum tricornutum dominates in intensive marine cultures when the pH rises above ""10. This dominance results because of the diatom's unique ability among marine species to tolerate alkaline ...

This study evaluates the growth and chemical composition of the following marine microalgae: Dunaliella tertiolecta, Isochrysis galbana, and Tetraselmis gracilis and the chemical composition of Chlorella pyrenoidosa. Microalgae can produce a number of compounds of high commercial value for the industry, mainly for the food industry. The growth kinetics, cell volume, pigments, carbohydrates, pro...

Effect of the Culture Nutrients on the Biomass and Lipid Productivities of Microalgae Dunaliella tertiolecta Teresa M. Mata*, Ricardo Almeida, Nídia S. Caetano LEPAE – Laboratory for Process, Environmental and Energy Engineering, Faculty of Engineering, University of Porto (FEUP), R. Dr. Roberto Frias S/N, 4200-465 Porto, Portugal Department of Chemical Engineering, School of Engineering (ISEP)...

Dunaliella tertiolecta (DT) was chemically investigated to isolate molecules inhibiting cancer cell proliferation and inducing apoptosis in vitro. The potency to inhibit cell growth was used for the bio-guided fractionation and isolation of active compounds using chromatographic techniques. The DT dichloromethane extract exhibited a strong anti-proliferative activity on MCF-7 and LNCaP cells, a...

Provision of copepod nauplii as food increases larval survival in many fish species that are difficult to rear using standard practices. Gladioferens imparipes is a temperate estuarine calanoid copepod with culture potential. Diets were tested to determine which would maximise copepod production. Copepods were fed five diets: Isochrysis galbana, Chaetoceros muelleri, Dunaliella tertiolecta, Nan...