A5066235958- Aquatic Ecosystems and Phytoplankton Dynamics
- Algal biology and biofuel production
- Fern and Epiphyte Biology
- Insect Pest Control Strategies
- Marine and coastal ecosystems
- Enzyme Catalysis and Immobilization
- Philosophy and Historical Thought
- Aquaculture Nutrition and Growth
- Academic Research in Diverse Fields
- Plant Pathogens and Fungal Diseases
- Plant Diversity and Evolution
- Insect and Pesticide Research
- Healthcare Regulation
- Mosquito-borne diseases and control
- Insect Utilization and Effects
- Biocrusts and Microbial Ecology
- Pharmaceutical and Antibiotic Environmental Impacts
- Water Quality and Pollution Assessment
- Linguistics and Education Research
- Nietzsche, Schopenhauer, and Hegel
- Essential Oils and Antimicrobial Activity
- Environmental Sustainability and Education
- Herbal Medicine Research Studies
- Medical research and treatments
- German Literature and Culture Studies
Universidade Federal do Amapá
2011-2025
Literaturarchiv
2017
Suzuki (Japan)
2017
Universidade Federal da Bahia
2007-2017
Universidade de São Paulo
2003-2016
Instituto de Filosofía
2016
Instituto de Botânica
2007
Universidade de Ribeirão Preto
2004
Universidade Brasil
2003
Cyanobacteria are a well-known source of bioproducts which renders culturable strains valuable resource for biotechnology purposes. We describe here the establishment cyanobacterial culture collection (CC) and present first version strain catalog its online database (http://lege.ciimar.up.pt/). The LEGE CC holds 386 strains, mainly collected in coastal (48%), estuarine (11%), fresh (34%) water bodies, most part from Portugal (84%). By following recent taxonomic classification, were...
Preparation of nanoformulations using natural products as bioactive substances is considered very promising for innovative larvicidal agents. On this context, oil in water nanoemulsions develop a main role, since they satisfactorily disperse poor-water soluble substances, such herbal oils, aqueous media. Pterodon emarginatus, popularly known sucupira, has oleoresin. However, to our knowledge, no previous studies were carried out evaluate its potential against Culex quinquefasciatus, the...
Human poisoning by microcystin has been recorded in many countries, including Brazil, where fatal cases have already occurred. The Amazon River is the main source of drinking water municipalities such as Macapá, there no monitoring cyanobacteria and cyanotoxins. This study investigated presence cyanotoxins samples from a treatment plant (DWTP) that catches River. toxin analyses employed ELISA, LC/MS, molecular screening for genes involved production sampling was carried out monthly April...
Aedes aegypti (Diptera: Culicidae) is the main vector of some neglected diseases, including dengue. It very important to develop formulations that increase effectiveness control with low toxicity. Quercetin a plant-derived flavonoid modulates development insects. The water solubility quercetin impairs water-dispersible commercial products. To circumvent this problem, preparation nanoformulations considered promising. Thus, study aimed evaluate effect bulk and nanosuspension against A. larvae...
Nano-emulsions of essential oils (EO) and their chemical constituents are promising raw materials for the ecological control Tribolium castaneum. Curcuma longa L. is a plant known properties its rhizome, which used in food, health, hygiene products. Although leaves considered by-products with no commercial value, they produce an oil rich bioactive monoterpenoids. This study aims to evaluate repellency nano-emulsions containing EO from C. or three main against T. The representative mixture...
Phytoplankton is composed of microalgae and cyanobacteria that inhabit aquatic ecosystems as part the plankton. These organisms play an essential role in assessing water quality, acting important environmental bioindicators. Here, we investigated composition occurrence frequency phytoplankton Curiaú River, located Macapá, State Amapá, Eastern Amazon. Additionally, seek to establish relationships between species richness physical chemical parameters quality. samples were collected quarterly...
During the various hydrological periods in 2011, we studied phytoplankton along an 87-km stretch of Araguari and Falsino rivers, which are located eastern Brazilian Amazon, state Amapá, Brazil, most ecologically preserved country. In study area, aquatic ecosystem is under pressure from human activities such as, mining, hydroelectric power generation urbanization, contrast with surrounding areas that designated for biodiversity conservation. The aim this was to characterize composition,...
The present work established the optimization and production of biodegradable thermoplastic polyhydroxybutyrate (PHB) from Amazonian microalga Stigeoclonium sp. B23. was performed in eight different growth media conditions B23, supplemented with sodium acetate bicarbonate total deprivation nitrate. B23 stained Nile Red, PHB extracted quantified by correlating amount fluorescence biopolymer concentration through spectrofluorimetry spectrophotometry, respectively. Our results detected all...
A floristic survey was based on the study of 148 sample units, from which 75 were already deposited at Herbário Científico do Estado “Maria Eneyda P. Kauffmann Fidalgo” Instituto de Botânica, São Paulo State Department Environment, and 73 collected during period 2000-2001. Three taxa Octacanthium (Desmidiales, Zygnemaphyceae) identified: O. bifidum (Brébisson) Compère var. bifidum, mucronulatum (Nordstedt) mucronulatum, octocorne (Ralfs) octocorne.
The Amazon region contains a great diversity of species, and the River basin accounts for almost 20% all freshwater in world. Despite favorable environmental conditions this region, little is known about cyanobacterial waterbody, especially at mouth river. In paper, we used polyphasic approach to identify 14 strains isolated on inlet site from drinking water supply located close river mouth. were characterized based morphology, behavior culture, 16S rRNA gene sequencing, phylogenetic...
Microalgae and cyanobacteria are good sources for prospecting metabolites of biotechnological interest, including glucosidase inhibitors. These inhibitors act on enzymes related to various biochemical processes; they involved in metabolic diseases, such as diabetes Gaucher disease, tumors viral infections, thus, interesting hubs the development new drugs therapies. In this work, screening 63 environmental samples collected Brazilian Amazon found activity against β-glucosidase, at least 60...
Microalgae are an indispensable food source for the various growth stages of mollusks, crustaceans, and several fish species.Using a microalgae biomass present in Amazonian ecosystem (Macapá-AP), we study extraction methods fatty acid such as solvent (magnetic stirring and/or Soxhlet) hydrolysis (acid enzymatic catalysis) followed by esterification direct transesterification.Extraction crude triacylglycerides mechanical at room temperature was more efficient than continuous reflux...
Marine phycotoxins are organic compounds synthesized by some species of microalgae, which accumulate in the tissues filter-feeder organisms such as bivalve mollusks. These toxins can cause acute intoxication episodes humans, a severe threat to aquaculture and fisheries. In State Pará, Brazil, oyster farming has community, artisanal sustainable bases, using mangroves cultivation environment seed banks. small-scale production, there often no established methods safeguarding health consumers...
Levantamento florístico dos gêneros Octacanthium, Staurastrum e Staurodesmus, da ordem Desmidiales (Zygnemaphyceae) na Reserva Biológica do Parque Estadual das Fontes Ipiranga situado cidade de São Paulo, Estado Brasil. Dezenove espécies Staurastrum, seis variedades que não são as típicas suas respectivas quatro formas igualmente variedades; 10 três duas taxonómicas também típicas; Octacanthium foram identificadas, totalizando 45 táxons. tetracerum (Kützing) Ralfs ex var. f. foi a espécie...
Admitindo como ponto de partida que o primeiro Wittgensteinherda Schopenhauer a radical dissociação entre campo darepresentação lógica do mundo e dimensão da vontade humana,este trabalho tem objetivo mostrar maneira aapropriação, em inédito, daquela dissociação,termina por produzir, na obra-prima Wittgenstein, mesmoresultado originalmente alcançado pelo mestre alemão: recusade uma razão prática feição kantiana.
Nano-emulsions of essential oils (EO) and their chemical constituents are promising raw materials for the ecological control Tribolium castaneum. Curcuma longa Linn is a plant known properties its rhizome which used in food, health hygiene products. Its leaves by-products with no commercial value, but unexplored bioactive volatile constituents. This study aims to evaluate repellency nano-emulsions containing EO from C. or three main against T. The representative mixture extracted four...
Floristic survey of genus Bourrellyodesmus (Desmidiaceae, Zygnemaphyceae) was based on 149 sample units, 76 which were already deposited at the Herbário Científico do Estado "Maria Eneyda P. Kauffmann Fidalgo" (SP) Instituto de Botânica, Secretaria Meio Ambiente São Paulo, and 73 collected during 2000-2001. Two species identified: B. jolyanus (C. Bicudo & Azevedo) C. Compère e guarrerae sp. nov.
Atualmente, grande quantidade de substâncias são encontradas no ambiente aquático, sendo os fármacos, principalmente a classe dos anti-inflamatórios, encontrados neste meio. Em virtude da fármacos com potencial tóxico para organismos aquáticos se faz necessário que estudos ecotoxicológicos sejam realizados avaliar impactos dessas substâncias. O objetivo deste trabalho visou o crescimento alga verde Chlorella vulgaris em exposição anti-inflamatórios e ao paracetamol diferentes concentrações,...
O fitoplâncton é formado por microalgas e cianobactérias, fornecedores de oxigênio para o meio aquático. Em ecossistemas desequilibrados esses organismos podem se multiplicar produzir toxinas que afetam a saúde humana animal. Este estudo teve como objetivo identificar padrões densidade no da água bruta ETAm relacionar influência fatores físicos, químicos ambientais sobre das espécies. As amostragens foram realizadas entre maio 2019 agosto 2020 (exceto em março-maio/2020, devido ao isolamento...