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Showing 1 to 20 of 28 for “"dunaliella"”.
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Culturing and processing of Dunaliella for enrichment of enzymatic antioxidants
Dunaliella, a singled cell microalga, accumulates antioxidants as the main line of defence against reactive oxygen species to protect the cell from oxidative stress-induced damage. The high adaptability of this halotolerant Dunaliella makes this alga a promising and a sustainable natural source of …
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Studien zur Expression und Lokalisation von P-Typ ATPasen aus Dunaliella bioculata
… und DBPMA1, einer putativen H+-ATPase aus Dunaliella bioculata sollte überprüft werden, ob N-terminale Sequenzbereiche, einschließlich der ersten beiden Transmembransegmente, ausreichen, das Targeting der ATPasen zu vermitteln. N-terminale Sequenzbereiche wurden unter Berücksichtigung …
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Cultivo y posibles aplicaciones de una cepa de Salinas Chicas de la microalga extremófila Dunaliella salina
Se aisló una cepa de la microalga extremófila Dunaliella salina, propia de las Salinas Chicas (Provincia de Buenos Aires) y se la mantuvo en cultivo con el fin de realizar diferentes ensayos para comparar su comportamiento con el que se cita en la literatura para la misma especie. Se desarrolló un …
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Photoprotective role of beta -carotene and antioxidant enzymes: A shield against ultraviolet damage in Dunaliella bardawil
… in two species of the unicellular green alga Dunaliella. Species selection was based on the ability of Dunaliella bardawil (UTEX 2538) to accumulate massive quantities of inter-thylakoid beta-carotene during exposure to stress or high irradiances of photosynthetically active radiation (PAR: …
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Evaluation of Dunaliella isolates from Sua Pan (Botswana) solar salt evaporation ponds for production of ß-carotene
… of this study was to characterise, functionally, Dunaliella species naturally inhabiting Sua Pan solar saltworks evaporation ponds in Botswana and to evaluate the species for potential application in commercial production of ß-carotene. The main goal was to establish if the species are of …
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Microalgal swimming in fluid environments: experimental and numerical investigations
… behavior and some key physiological aspects of Dunaliella primolecta Butcher (D. primolecta / Dunaliella). D. primolecta, a fast growing microalga, is a promising organism for alternative energy production because of its capability to accumulate significant amount of "lipids", a major …
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Evaluation of biomass from the halotolerant microalga Dunaliella salina as an animal feed additive with immune-modulatory activity
… the potential of microalgal biomass sourced from Dunaliella salina for use as an animal feed additive. Dunaliella salina is the richest known source of carotenoid pigments and anti-oxidants, and these have a variety of uses including as food colourants, additives for cosmetics, and nutritional or …
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Photosynthetic and oxidative stress in the green alga Dunaliella tertiolecta: The effects of UV-B and UV-A radiation
… responses using the unicellular green alga Dunaliella tertiolecta as a model organism. A UV-B spectral profile comparable to natural solar irradiance was produced in the laboratory by filtering UV-B lamp emissions with a novel liquid urate solution (UA) and compared against the …
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Glycerol from novel strains of halophytic microalgae
… in new strains of halotolerant microalgae Dunaliella (T35, T36 and T37) and Asteromonas (T33a, T33b and T33c) obtained from Namibia. The aim was to: (a) Determine the optimum conditions of pH value, temperature and salinity on the specific growth rate and doubling time and parameters of …
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Algae Lysis with Pulsed Electric Fields
… vulgaris, Chlamydomonas reinhardtii and Dunaliella salina due to lipid contents as high as 30% to 56% of their dry weight (depending on growth conditions) and availability [5], [6]. In order to harvest lipids from algae, the cells must first be lysed.</p> <p>Lysing is achieved by breaking …
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Homology-Based Functional Proteomics By Mass Spectrometry and Advanced Informatic Methods
… laevis microtubule-associated proteome and the Dunaliella salina soluble salt-induced proteome, both organisms with unsequenced genomes and minimal database sequence resources. These sequence-similarity methods extended protein identification capabilities by more than two-fold compared to …
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Ingestion Rates of Five Species of Pacific Northwest Echinoderm Larvae on Natural and Artificial Particles
… the laboratory. The natural algal diets included Dunaliella tertiolecta, Isochrysis galbana and Rhodomonas sp. The artificial diet used was a 10-fold diluted artificial feed made from the concentrate of Ziegler E-Z Larval diet. The numbers of cells ingested per minute and total body length were …
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Digital holographic imaging of microorganisms
… DHI was used to locate and track 10 micrometer Dunaliella freely swimming in a 30 milliliter tank of artificial ocean water. Multiple holograms were recorded onto one frame with laser pulsing to identify short algae trajectories. An automatic algae locating program was designed, but the signal …
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Characterization of Fresh Water Microalgae from East Tennessee for Biodiesel Production
… aeration compared to control microalgae Dunaliella salina, Nannochlorposis oculata which do not require additional aeration for optimal growth. Lipid extraction results suggest that JC (9.7%) and BT (4.1%) have slightly higher lipid content compared to control algae e.g. <em>Chlamydomonas …
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The Effects of Kepone on the Estuarine Copepod <i>Acartia tonsa</i>
… with a 96 hour LC50 of 4.96 ug/1. <em>Dunaliella tertiolecta</em> was selected as the food source for the grazing experiments. Kepone concentrations of 0.046 ug/1 significantly (0.05 level) reduced the flltering rate under conditions of chronic exposure. The lesser concentrations of …
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Morphological and Biochemical Changes of Sand Dollar Larvae in Response to Variation in Diet and Salinity
… <em>Isochtysis galbana</em> and <em>Dunaliella tertiolectu</em> were used as single algal diets and /. <em>galbana</em> -<em>D. tertiolecta</em>, <em>I. galbana-C. muelleri</em> and <em>C. muelleri - D. tertiolecta</em> as a mixed algal diets. Among the single algal diets, larvae fed …
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Palynology of acid-saline lakes of western Australiabiostratigraphy and paleoenvironmental reconstruction
… Above the lignites, the salt-tolerant alga Dunaliella is used as a proxy for saline conditions. Reworking has been established in post-Eocene sediments because well-preserved Eocene freshwater and marine palynomorphs co-occur with sclerophyllic and halophilic palynomorphs"--Abstract, page …
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Survival potential of microalgae for long-term space missions
… and extremophilic algal species such as Dunaliella salina and cryophilic snow algae may be suitable species for long-term missions as they can produce high concentrations of antioxidants such as the red astaxanthin (keto-carotenoid) or the orange β-carotene pigments which can be utilised …
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Strategies for the selection, identification and improvement of microalgae strains for enhanced biofuel production
… Cell Sorting (FACS) to select and isolate Dunaliella cells containing either high oil or starch amounts based upon fluorescence staining intensities. Thirty rounds of FACS selection resulted in the isolation of cells populations with significantly either increased lipid or starch content. …
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