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Assessment of types and abundance of live food for fish farming in Makoba Earthen ponds, Zanzibar, Tanzania OceanDocs
Kyewalyanga, M.S..
Surveys of naturally-occurring live food for fish in Makoba earthen ponds, Zanzibar were conducted from November 2001 to August 2002. This involved identification of dominant plankton in the water column as well as the composition of algal mats. The effect of nutrients on the composition and abundance of the organisms was also assessed. Protozoa were found to be the dominant zooplankton in the water column, followed by rotifers. The most abundant phytoplankton genera were Prorocentrum (13.4%), followed by Coscinodiscus (10.4%) and Diplopsalopsis (7.5%), while the benthic algal mats were dominated by cyanobacteria, mostly Spirulina (22%) and Oscillatoria (18.4%). To complement the surveys, a time-series experiment was conducted for 21 consecutive days to...
Tipo: Journal Contribution Palavras-chave: Prorocentrum; Coscinodiscus; Diplopsalopsis; Spirulina; Oscillatoria; Pyramimonas; Biddulphia; Microcystis Fish ponds Fishery management Phytoplankton Protozoan diseases Fish farms Fertilization (biological) Fish ponds Fishery management Phytoplankton http://aims.fao.org/aos/agrovoc/c_2929 http://aims.fao.org/aos/agrovoc/c_24026 http://aims.fao.org/aos/agrovoc/c_13344.
Ano: 2004 URL: http://hdl.handle.net/1834/1082
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Effect of microalga Spirulina platensis (Arthrospira platensis) on hippocampus lipoperoxidation and lipid profile in rats with induced hypercholesterolemia BABT
Bertolin,Telma Elita; Pilatti,Dayane; Giacomini,Ana Cristina Vendrametto Varrone; Bavaresco,Caren Serra; Colla,Luciane Maria; Costa,Jorge Alberto Vieira.
Studies have been conducted on microalga Spirulina platensis (Arthrospira platensis) due to its therapeutic potential in several areas, including the capacity for preventing and decreasing the damages caused by hyperlipidemia and the antioxidant activity. The aim of the study was to evaluate the effect of microalga Spirulina platensis on hippocampus lipoperoxidation and lipid profile in rats with induced hypercholesterolemia during 60 days. The measurement of hippocampus lipoperoxidation did not demonstrate significant difference (p>0.05) when Spirulina platensis was added to hypercholesterolemic diet. The evaluation of lipid profile showed that the administration of the microalga in therapeutic and preventive ways led to a significant protective effect...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Spirulina; Arthrorspira; Lipids; Cholesterol; Antioxidant.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000500024
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Effect of three different types of culture conditions on Spirulina maxima growth BABT
Monteiro,Maria Paula da Costa; Luchese,Rosa Helena; Absher,Theresinha Monteiro.
Growth of Spirulina maxima was studied in three types of culture conditions with four replicates each: 1) manual aeration with natural sunlight; 2) manual aeration with artificial light; and 3) constant aeration with an aquarium compressor and artificial light. After 185 days of incubation, growth declined in the first two treatments, while in the third treatment, higher growth was observed with average optical density of 3.7 against 1.8 and 1.9 in the first and second treatment, respectively. This was probably due to the fact that under constant aeration the salts were suspended avoiding the crystallization what could cause a decrease in the availability of the necessary nutrients for the growth. Also, the constant stirring allowed all the cells to...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Aquarium compressor; Biomass production; Microalgal growth; Spirulina.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132010000200016
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Paclitaxel and spirulina co-loaded polymeric nanoparticles: in-vitro and in-vivo anticancer study BJPS
Ravikumar,Yamuna; Catherine,Dorcas Pinky; Nair,Keerthi G. S; Sekar,Akshya; Velmurugan,Ramaiyan.
Paclitaxel spirulina nanoparticles were said to have promising anticancer activity against gastric cancer. Nanoparticles of paclitaxel-spirulina were prepared for treating gastric cancer using precipitation technique. The synergistic anticancer efficiency againstMKN45 cells retains when the paclitaxel and spirulina were encapsulated into nanoparticles. To increase the site specific delivery, intra-tumoral administration was carried in the in vivo evaluation. There was an increase in overall survival in an MKN45-transplanted mice model and notable improvement in anti-tumour efficacy when paclitaxel-spirulina nanoparticles were delivered through intra-tumoral administration. The further investigation of overall anticancer mechanism of these nanoparticles is...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Paclitaxel; Spirulina; Nanoparticle; In-vitro; In-vivo; Gastric cancer.
Ano: 2020 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100642
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Pentoses Used in Cultures of Synechococcus nidulans and Spirulina paracas: Evaluation of Effects in Growth and in Content of Proteins and Carbohydrates BABT
Freitas,Bárbara Catarina Bastos de; Cassuriaga,Ana Paula Aguiar; Morais,Michele Greque de; Atala,Daniel Ibraim Pires; Costa,Jorge Alberto Vieira.
Abstract The biological assimilation of the sugars present in lignocellulosic residues has gained prominence since these residues are the most abundant and economic residues in nature. Thus, the objective of this work was to determine whether the use of D-xylose and L-arabinose as sources of carbon in Synechococcus nidulans and Spirulina paracas cultures affects the growth and production of proteins and carbohydrates. Kinetic growth parameters, pentose consumption, protein content and carbohydrates were evaluated. Synechococcus nidulans and Spirulina paracas consumed all concentrations of pentose used. The highest cellular concentration (1.37 g.L-1) and the highest protein productivity (54 mg.L-1.d-1) were obtained for Spirulina paracas, which was...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Arabinose; Proteins; Spirulina; Synechococcus; Xylose.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132019000100513
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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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Protective effects of Spirulina on the liver function and hyperlipidemia of rats and human BABT
El-Sheekh,Mostafa Mohamed; Hamad,Saied Mohamed; Gomaa,Mahmoud.
In the present study, the effects of Spirulina on subchronic treatments (two weeks) of hyperlipidemia and liver function of the rats and humans were investigated. The hyperlipidemia was induced in the rats using 25% of soya bean oil and 25% butter. The butter induced more hyperlipidemia than soya bean oil. Spirulina was used at the concentrations of 0, 2.5, 5.0 and 10 % of diet weight of the rats. The decrease in hyperlipidemia by Spirulina was dependent on its concentration in the diet. In case of human studies, about four g/day of Spirulina was taken via oral administration by Egyptian volunteers patients with hyperlipidemia. Spirulina decreased the levels of hyperlipidemia in these patients. The effects were dependent on the amount and number of...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Spirulina; Hyperlipidemia; Protective effects; Liver functions.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132014000100012
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Spirulina as a protein source in the nutritional recovery of Wistar rats BABT
Moreira,Lidiane Muniz; Behling,Bruna del Sacramento; Rodrigues,Rosane da Silva; Costa,Jorge Alberto Vieira; Soares,Leonor Almeida de Souza.
This study was aimed at evaluating the effects of Spirulina (Arthrospira) as a protein source in the nutritional recovery of rats subjected to protein malnutrition. In order to understand such effects, responses of the developing body, serum biochemical profile, and blood count of animals were analyzed. A total of, 23 Wistar Rattus norvegicus were given a proteic diet (AIN-93G adapted) in malnutrition phase (phase I) for 10 days. After this period, the rats were separated into four groups according to the protein source (recovery phase): Control (C), casein 12%; Spirulina level I (S1), Spirulina 8.8% + casein 5.0%; Spirulina level II (S2), Spirulina 17.6% + casein 0.15%, and Spirulina level III (S3), Spirulina 26.4%. Recovery phase (phase II) lasted 30...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Protein malnutrition; Rats; Nutritional recovery; Rattus norvegicus; Spirulina.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132013000300013
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Study of phycocyanin production from Spirulina platensis under different light spectra BABT
Walter,Alfredo; Carvalho,Júlio Cesar de; Soccol,Vanete Thomaz; Faria,Ana Bárbara Bisinella de; Ghiggi,Vanessa; Soccol,Carlos Ricardo.
The aim of this work was to investigate the production of phycocyanin by Spirulina platensis under different spectra of light. The dependent variables evaluated were the amount of phycocyanin obtained and its purity, demonstrating that there might be a restructuring of phycobilisomes, especially when the culture was subjected to red light, which increased the purity level up to 33% with a reduction of 16% in phycocyanin content, but with higher photosynthetic efficiency compared to natural light.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Spirulina; Phycocyanin; Phycobilisome; Pigment; Spectrum; Chromatic acclimation.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132011000400005
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Ростовые и ассимиляционные характеристики культуры Spirulina platensis (Nordst.) Geitl. при различных концентрациях фосфора в питательной среде IBSS Repository
Горбунова, С. Ю.; Боровков, А. Б..
Приведены результаты изучения роста и потребления азота и фосфора прокариотической микроводорослью Spirulina platensis, а также количественной оценки потребления культурой минеральных форм азота и фосфора в зависимости от начальной концентрации биогенных элементов в среде. http://biotex.ibss.org.ua/
Tipo: Journal Contribution Palavras-chave: Спирулина; Продуктивность; Минеральный фосфор; Spirulina; Productivity; Mineral phosphorus.
Ano: 2010 URL: http://repository.ibss.org.ua/dspace/handle/99011/1747
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