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Registros recuperados: 9
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An integrated fish-plankton aquaculture system in brackish water ArchiMer
Gilles, S.; Fargier, L.; Lazzaro, X.; Baras, E.; De Wilde, Nicolas; Drakides, C.; Amiel, C.; Rispal, B.; Blancheton, Jean-paul.
Integrated Multi-Trophic Aquaculture takes advantage of the mutualism between some detritivorous fish and phytoplankton. The fish recycle nutrients by consuming live (and dead) algae and provide the inorganic carbon to fuel the growth of live algae. In the meanwhile, algae purify the water and generate the oxygen required by fishes. Such mechanism stabilizes the functioning of an artificially recycling ecosystem, as exemplified by combining the euryhaline tilapia Sarotherodon melanotheron heudelotii and the unicellular alga Chlorella sp. Feed addition in this ecosystem results in faster fish growth but also in an increase in phytoplankton biomass, which must be limited. In the prototype described here, the algal population control is exerted by herbivorous...
Tipo: Text Palavras-chave: IMTA; Tilapia; Chlorella; Brachionus plicatilis; Photosynthetic recycling aquaculture system.
Ano: 2013 URL: http://archimer.ifremer.fr/doc/00118/22955/20945.pdf
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Changes of the Total Lipid and Omega-3 Fatty Acid Contents in two Microalgae Dunaliella Salina and Chlorella Vulgaris Under Salt Stress BABT
Rismani,Sharare; Shariati,Mansour.
ABSTRACT Effect of salt stress on biomass, cell number, contents of total lipid, omega-3 fatty acids, including ALA (Alpha Linolenic Acid), EPA (Eicosapentaenoic Acid) and DHA (Docosahexaenoic Acid) and their biosynthetic pathway intermediates (palmitic acid, stearic acid, oleic acid and linoleic acid) of two microalgae Dunaliella salina and Chlorella vulgaris were investigated. Dilution stress from 1.5 to 0.5 M NaCl and salt stress from 1.5 to 3 M NaCl were incorporated into the D. salina medium. Salt stress of 200 mM NaCl was also applied to C. vulgaris culture. Results indicated that increasing salt concentration resulted in the reduced growth rate of C. vulgaris and substantial increase of the total lipid content in both species. Proper growth rate of...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Dunaliella; Chlorella; Salt stress; Lipid; Omega-3.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132017000100432
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Effect of biogas from swine wastewater on microalgae growth and evaluation of harvesting methods on cellular composition. Repositório Alice
PRANDINI, J. M.; MICHELON, W.; MEZZARI, M. P.; SOARES, H. M.; SILVA, M. L. B. da.
2015
Tipo: Resumo em anais de congresso (ALICE) Palavras-chave: Chlorella; Biofilter; Lipids; Phycoremediation.
Ano: 2015 URL: http://www.alice.cnptia.embrapa.br/handle/doc/1033632
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Influence of temperature and nutrient content on lipid production in freshwater microalgae cultures Anais da ABC (AABC)
BOHNENBERGER,JULIANA E.; CROSSETTI,LUCIANE O..
The production of biomass by microalgae is considered a clean alternative compared to other plant crops that require large areas for cultivation and that generate environmental impacts. This study evaluated the influence of temperature and nutrients on lipid contents of cultured species of freshwater microalgae, with a view toward using these lipids for biodiesel production. Two strains of Monoraphidium contortum, a culture containing Chlorella vulgaris and Desmodesmus quadricauda and another strain of Microcystis aeruginosa were maintained in the laboratory for six days, in five culture media: modified ASM-1 (control, with high concentrations of phosphate and nitrate; phosphorus-deficient; non-limiting phosphate; nitrogen-deficient; and non-limiting...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Energy biomass; Monoraphidium; Chlorella; Desmodesmus; Microcystis; Lipid accumulation.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652014000301239
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Inhibition of the water splitting system by sodium chloride stress in the green alga Chlorella vulgari Braz. J. Plant Physiol.
EL-Sheekh,Mostafa M..
The effect of sodium chloride on the photosynthetic electron transport chain was investigated in the freshwater green alga Chlorella vulgaris. It was found that the rate of oxygen evolution under steady state and flash light conditions diminished by increasing salt concentrations. Salt treatment of cells also decreased the fluorescence and delayed luminescence yields. However, the fluorescence yield was almost completely restored by the addition of an artificial electron donor to the NaCl-treated cells. The oscillation pattern of the thermoluminescence B band as a function of flash number indicated that the S2<FONT FACE=Symbol>®</FONT>S3 transition of the water splitting system is inhibited by NaCl treatment.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Chlorella; Electron transport; Photosystem II; Salinity.
Ano: 2004 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202004000100004
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Large-scale microalgae production for nursery rearing of marine bivalves OMA
De Pauw, N.; Verboven, J.; Claus, C..
The feasibility of large-scale bloom induction of nutritionally suited natural phytoplankton species, to feed a semi-industrial nursery of edible shellfish, built on the Belgian coast, was tested. The outdoor microalgal production unit consisted of four tanks of 100 m² surface each (two of 1 m depth and two of 0.5 m depth), equipped with different mixing devices. The cultures were run as chemostats in which seawater was enriched with commercial inorganic N, P and Si fertilizers. Depending on the season, between 5-10 and 80% of the culture volume could be harvested daily, with algal densities ranging from 50,000 to 500,000 cells per ml. By manipulation of operational parameters such as detention time, nutrient levels and nutrient ratios (N: Si: P), unsuited...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Algal culture; Marine aquaculture; Mass culture; Mollusc culture; Rearing; Chaetoceros; Chlorella; Nitzchia; Phaeodactylum; Skeletonema.
Ano: 1983 URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3395
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Perfil de ácidos graxos de microalgas cultivadas com dióxido de carbono Ciência e Agrotecnologia
Morais,Michele Greque de; Costa,Jorge Alberto Vieira.
As microalgas são consideradas fontes potenciais de diversos compostos químicos. Os ácidos graxos obtidos da biomassa podem apresentar efeitos terapêuticos em humanos e podem ser usados para produção de biodiesel. Objetivou-se, neste trabalho verificar o conteúdo lipídico e o perfil dos ácidos graxos das microalgas Spirulina sp., Scenedesmus obliquus, Chlorella kessleri e Chlorella vulgaris cultivadas em diferentes concentrações de dióxido de carbono e bicarbonato de sódio. A microalga Chlorella kessleri cultivada com 12% de CO2 apresentou a maior concentração de lipídios na biomassa seca (9,7% p/p). A máxima concentração de ácidos graxos insaturados foi 72,0% (p/p) para C. vulgaris cultivada com 12% de CO2. Para os ácidos graxos saturados o maior valor...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Ácidos graxos; Chlorella; Lipídios; Scenedesmus; Spirulina.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542008000400032
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Produção de biomassa algal: uma abordagem econômica e bioquímica integrada. Repositório Alice
RIBEIRO, D. M.; GARCIA, L. C.; JUNGMANN, L.; WILLIAMS, T. C. R.; RONCARATTI, L. F.; BRASIL, B. dos S. A. F..
bitstream/item/184161/1/EnPI-2018-2.pdf
Tipo: Resumo em anais de congresso (ALICE) Palavras-chave: Bioprodutos; Meio de cultivo; Biotecnologia algal; Chlorella.
Ano: 2018 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1097138
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The effect of HUFA and vitamin C-enriched rotifers on larval growth and survival of grouper (<i>Epinephelus suillus</i>) OMA
Chavez, D.R.; Estenor, D.G.; Merchie, G.; Lavens, P..
Newly-hatched grouper larvae were reared for 24 days at a density of 15 larvae.l<sup>-1</sup> in 250-l capacity cylindro-conical tanks filled with 200l seawater. Starting day 2, the larvae were given: <i>Chlorella</i>-fed rotifers (Chl-R) rotifers fed Culture Selco (INVE Aquaculture NV, Belgium) (CS-R), and rotifers fed Culture Selco and consequently enriched for 24h with 20% vitamin C (CSC-R). The rotifer density in the larval tanks was maintained at 15 rotifers.ml<sup>-1</sup>. The rotifer diet was supplemented with egg yolk until day 5. Each treatment had five replicates. Preliminary results show no significant difference in the survival rate of grouper larvae given Chl-R (4.21±2.8%), CS-R (2.56±0.9%) and CSC-R...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Fatty acids; Feeding experiments; Growth; Larvae; Survival; Vitamin C; Chlorella; Epinephelus suillus; Rotifera.
Ano: 1995 URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2537
Registros recuperados: 9
Primeira ... 1 ... Última
 

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