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Pesquisa : D20.944.420 [Categoria DeCS]
Referências encontradas : 171 [refinar]
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Id: biblio-1055115
Autor: Pazdiora, R. D; Pazdiora, B. R. C. N; Ferreira, E; Muniz, I. M; Andrade, E. R; Siqueira, J. V. S; Scherer, F; Venturoso, O. J; Souza, P. J.
Título: Digestibilidade, comportamento ingestivo e desempenho de ovinos alimentados com resíduos de agroindústrias processadoras de frutas / Digestibility, intake behavior, and performance of sheep fed residues from fruit processing agro-industries
Fonte: Arq. bras. med. vet. zootec. (Online);71(6):2093-2102, Nov.-Dec. 2019. tab.
Idioma: pt.
Resumo: Objetivou-se avaliar o consumo, a digestibilidade e o desempenho de ovinos, arraçoados com dietas isoproteicas, contendo 75% de resíduos da agroindústria frutífera (abacaxi, acerola, maracujá e cupuaçu), uma dieta com feno de tifton e 25% de concentrado, em delineamento inteiramente ao acaso. A participação do resíduo de maracujá na dieta proporcionou os maiores níveis de consumo de matéria seca (1170,6g d-1) em relação aos resíduos de abacaxi (693,8g d-1), acerola (644,2g d-1), cupuaçu (452,9g d-1) e feno de tifton (962,7g d-1), o que se relaciona aos seus níveis de digestibilidade (77,8; 63,1; 59,1; 61,7 e 71,8%, respectivamente). Tal resultado gerou diferenças significativas, destacando-se o resíduo de maracujá quanto à conversão alimentar (8,3), e o ganho médio diário de peso (141,5g d-1). Apesar de ter tido a mesma conversão observada para o feno de tifton (13,2), apresentou maior ganho médio diário (75,6g d-1). Os demais resíduos apresentaram efeitos sobrepostos, contudo o resíduo de acerola ficou com a pior conversão (51,4) e o menor ganho médio diário (15,6g d-1), sendo esse sem diferença em relação ao cupuaçu (23,0g d-1). Os resíduos podem ser utilizados como alternativa para a alimentação de ovinos.(AU)

The objective was to evaluate the consumption, digestibility and performance of the sheep with iso protein diets, with 75% of residues from fruit agro-industries (pineapple, acerola, passion fruit, and cupuassu) and a diet with tifton hay, and 25% of concentrate, in a totally randomized design. The participation of passion fruit residue on the diet provided the highest consumption levels of dry matter (1170.6g d -1 ) compared with the residues of pineapple (693.8g d -1 ), acerola (644.2g d -1 ), cupuassu (452.9g d -1 ) and tifton hay (962.7g d -1 ), which is related to their levels of digestibility (77.85, 63.14, 59.07, 61.68 and 71.83%, respectively). Such a result generated significant differences with emphasis on passion fruit residue regarding food inversion (8.30) and average daily weight gain (141.50g d -1 ), in spite of having the same conversion detected for tifton hay (13.2), it showed a higher average daily gain (75.6g d -1 ). The other residues showed overlapping effects, however, acerola residue showed the worst conversion level (51.4) and the lowest average daily gain (15.6g d -1 ), and this one showed no difference compared with cupuassu (23.0g d -1 ). The residues can be used as an alternative for sheep feeding.(AU)
Descritores: Ovinos/metabolismo
Malvaceae
Malpighiaceae
Passiflora
Ananas
Ingestão de Alimentos
Comportamento Alimentar
Ração Animal
-Resíduos Industriais
Limites: Animais
Responsável: BR68.1 - Biblioteca Virginie Buff D'Ápice


  2 / 171 LILACS  
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Id: biblio-839373
Autor: Guneser, Onur; Demirkol, Asli; Yuceer, Yonca Karagul; Togay, Sine Ozmen; Hosoglu, Muge Isleten; Elibol, Murat.
Título: Production of flavor compounds from olive mill waste by Rhizopus oryzae and Candida tropicalis
Fonte: Braz. j. microbiol;48(2):275-285, April.-June 2017. tab, graf.
Idioma: en.
Projeto: The Scientific and Technological Council of Turkey.
Resumo: Abstract The purpose of this study was to investigate the production of flavor compounds from olive mill waste by microbial fermentation of Rhizopus oryzae and Candida tropicalis. Olive mill waste fermentations were performed in shake and bioreactor cultures. Production of flavor compounds from olive mill waste was followed by Gas Chromatography–Mass spectrometry, Gas chromatography- olfactometry and Spectrum Sensory Analysis ®. As a result, 1.73-log and 3.23-log cfu/mL increases were observed in the microbial populations of R. oryzae and C. tropicalis during shake cultures, respectively. C. tropicalis can produce a higher concentration of d-limonene from olive mill waste than R. oryzae in shake cultures. The concentration of d-limonene was determined as 185.56 and 249.54 µg/kg in the fermented olive mill waste by R. oryzae and C. tropicalis in shake cultures respectively. In contrast, R. oryzae can produce a higher concentration of d-limonene (87.73 µg/kg) d-limonene than C. tropicalis (11.95 µg/kg) in bioreactor cultures. Based on sensory analysis, unripe olive, wet towel, sweet aromatic, fermented aromas were determined at high intensity in olive mill waste fermented with R. oryzae meanwhile olive mill waste fermented with C. tropicalis had only a high intensity of unripe olive and oily aroma.
Descritores: Rhizopus/metabolismo
Candida tropicalis/metabolismo
Olea/metabolismo
Aromatizantes/metabolismo
Resíduos Industriais
-Terpenos/metabolismo
Biotecnologia/métodos
Contagem de Colônia Microbiana
Cicloexenos/metabolismo
Fermentação
Olfatometria
Cromatografia Gasosa-Espectrometria de Massas
Responsável: BR1.1 - BIREME


  3 / 171 LILACS  
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Id: biblio-828203
Autor: Güneşer, Onur; Karagül-Yüceer, Yonca; Wilkowska, Agnieszka; Kregiel, Dorota.
Título: Volatile metabolites produced from agro-industrial wastes by Na-alginate entrapped Kluyveromyces marxianus
Fonte: Braz. j. microbiol;47(4):965-972, Oct.-Dec. 2016. tab.
Idioma: en.
Projeto: Scientific and Technological Council of Turkey.
Resumo: Abstract The aim of this study was to evaluate the effects of alginate entrapment on fermentation metabolites of Kluyveromyces marxianus grown in agrowastes that served as the liquid culture media. K. marxianus cells entrapped in Na-alginate were prepared using the traditional liquid-droplet-forming method. Whey and pomaces from processed tomatoes, peppers, and grapes were used as the culture media. The changes in the concentrations of sugar, alcohol, organic acids, and flavor compounds were analyzed using gas chromatography-mass spectrometry (GC-MS) and high pressure liquid chromatography (HPLC). Both free and entrapped, K. marxianus were used individually to metabolize sugars, organic acids, alcohols, and flavor compounds in the tomato, pepper, grape, and acid whey based media. Marked changes in the fermentation behaviors of entrapped and free K. marxianus were observed in each culture. A 1.45-log increase was observed in the cell numbers of free K. marxianus during fermentation. On the contrary, the cell numbers of entrapped K. marxianus remained the same. Both free and entrapped K. marxianus brought about the fermentation of sugars such as glucose, fructose, and lactose in the agrowaste cultures. The highest volume of ethanol was produced by K. marxianus in the whey based media. The concentrations of flavor compounds such as ethyl acetate, isoamyl alcohol, isoamyl acetate, 2-phenylethyl isobutyrate, phenylethyl acetate, and phenylethyl alcohol were higher in fermented agrowaste based media compared to the control.
Descritores: Resíduos
Kluyveromyces/metabolismo
Alginatos/metabolismo
Compostos Orgânicos Voláteis/metabolismo
Fermentação
-Biodegradação Ambiental
Ácido Glucurônico/metabolismo
Ácidos Hexurônicos/metabolismo
Resíduos Industriais
Responsável: BR1.1 - BIREME


  4 / 171 LILACS  
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Id: lil-788980
Autor: El-Gendy, Mervat Morsy Abbas Ahmed; El-Bondkly, Ahmed Mohamed Ahmed.
Título: Evaluation and enhancement of heavy metals bioremediation in aqueous solutions by Nocardiopsis sp. MORSY1948, and Nocardia sp. MORSY2014
Fonte: Braz. j. microbiol;47(3):571-586, July-Sept. 2016. tab, graf.
Idioma: en.
Resumo: ABSTRACT An analysis of wastewater samples collected from different industrial regions of Egypt demonstrated dangerously high levels of nickel (0.27-31.50 mg L-1), chromium (1.50-7.41 mg L-1) and zinc (1.91-9.74 mg L-1) in the effluents. Alarmingly, these heavy metals are among the most toxic knownones to humans and wildlife. Sixty-nine Actinomycete isolates derived from contaminated sites were evaluated under single, binary, and ternary systems for their biosorption capacity for Ni2+, Cr6+ and Zn2+ from aqueous solutions. The results of the study identified isolates MORSY1948 and MORSY2014 as the most active biosorbents. Phenotypic and chemotypic characterization along with molecular phylogenetic evidence confirmed that the two strains are members of the Nocardiopsis and Nocardia genera, respectively. The results also proved that for both the strains, heavy metal reduction was more efficient with dead rather than live biomass. The affinity of the dead biomass of MORSY1948 strain for Ni2+, Cr6+ and Zn2+ under the optimized pH conditions of 7, 8 and 7, respectively at 40 °C temperature with 0.3% biosorbent dosage was found to be as follows: Ni2+ (87.90%) > Zn2+ (84.15%) > Cr6+ (63.75%). However, the dead biomass of MORSY2014 strain under conditions of pH 8 and 50 °C temperature with 0.3% biosorbent dose exhibited the highest affinity which was as follows: Cr6+ (95.22%) > Ni2+ (93.53%) > Zn2+ (90.37%). All heavy metals under study were found to be removed from aqueous solutions in entirety when the sorbent dosage was increased to 0.4%.
Descritores: Metais Pesados/metabolismo
Nocardia/classificação
Nocardia/metabolismo
-Temperatura
Fatores de Tempo
Poluentes Químicos da Água/metabolismo
Biodegradação Ambiental
RNA Ribossômico 16S/genética
Biomassa
Metais Pesados/toxicidade
Adsorção
Egito
Águas Residuárias/microbiologia
Concentração de Íons de Hidrogênio
Resíduos Industriais
Nocardia/isolamento & purificação
Nocardia/genética
Responsável: BR1.1 - BIREME


  5 / 171 LILACS  
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Id: lil-788973
Autor: Bernardo, Marcela Piassi; Coelho, Luciana Fontes; Sass, Daiane Cristina; Contiero, Jonas.
Título: L-(+)-Lactic acid production by Lactobacillus rhamnosus B103 from dairy industry waste
Fonte: Braz. j. microbiol;47(3):640-646, July-Sept. 2016. tab, graf.
Idioma: en.
Projeto: Fundação de Amparo a Pesquisa do Estado de São Paulo.
Resumo: ABSTRACT Lactic acid, which can be obtained through fermentation, is an interesting compound because it can be utilized in different fields, such as in the food, pharmaceutical and chemical industries as a bio-based molecule for bio-refinery. In addition, lactic acid has recently gained more interest due to the possibility of manufacturing poly(lactic acid), a green polymer that can replace petroleum-derived plastics and be applied in medicine for the regeneration of tissues and in sutures, repairs and implants. One of the great advantages of fermentation is the possibility of using agribusiness wastes to obtain optically pure lactic acid. The conventional batch process of fermentation has some disadvantages such as inhibition by the substrate or the final product. To avoid these problems, this study was focused on improving the production of lactic acid through different feeding strategies using whey, a residue of agribusiness. The downstream process is a significant bottleneck because cost-effective methods of producing high-purity lactic acid are lacking. Thus, the investigation of different methods for the purification of lactic acid was one of the aims of this work. The pH-stat strategy showed the maximum production of lactic acid of 143.7 g/L. Following purification of the lactic acid sample, recovery of reducing sugars and protein and color removal were 0.28%, 100% and 100%, respectively.
Descritores: Ácido Láctico/biossíntese
Lactobacillus rhamnosus/metabolismo
Resíduos Industriais
-Temperatura
Biodegradação Ambiental
Biotransformação
Adsorção
Fermentação
Técnicas de Cultura Celular por Lotes
Concentração de Íons de Hidrogênio
Responsável: BR1.1 - BIREME


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Id: lil-788963
Autor: Blanco, Alina Sánchez; Durive, Osmar Palacios; Pérez, Sulema Batista; Montes, Zoraida Díaz; Guerra, Nelson Pérez.
Título: Simultaneous production of amylases and proteases by Bacillus subtilis in brewery wastes
Fonte: Braz. j. microbiol;47(3):665-674, July-Sept. 2016. tab, graf.
Idioma: en.
Resumo: ABSTRACT The simultaneous production of amylase (AA) and protease (PA) activity by Bacillus subtilis UO-01 in brewery wastes was studied by combining the response surface methodology with the kinetic study of the process. The optimum conditions (T = 36.0 °C and pH = 6.8) for high biomass production (0.92 g/L) were similar to the conditions (T = 36.8 °C and pH = 6.6) for high AA synthesis (9.26 EU/mL). However, the maximum PA level (9.77 EU/mL) was obtained at pH 7.1 and 37.8 °C. Under these conditions, a considerably high reduction (between 69.9 and 77.8%) of the initial chemical oxygen demand of the waste was achieved. In verification experiments under the optimized conditions for production of each enzyme, the AA and PA obtained after 15 h of incubation were, respectively, 9.35 and 9.87 EU/mL. By using the Luedeking and Piret model, both enzymes were classified as growth-associated metabolites. Protease production delay seemed to be related to the consumption of non-protein and protein nitrogen. These results indicate that the brewery waste could be successfully used for a high scale production of amylases and proteases at a low cost.
Descritores: Peptídeo Hidrolases/biossíntese
Bacillus subtilis/metabolismo
Fermentação
Amilases/biossíntese
Resíduos Industriais
-Temperatura
Cinética
Biotransformação
Metabolismo dos Carboidratos
Concentração de Íons de Hidrogênio
Responsável: BR1.1 - BIREME


  7 / 171 LILACS  
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Id: lil-788961
Autor: Marques, Roger Vasques; Paz, Matheus Francisco da; Duval, Eduarda Hallal; Corrêa, Luciara Bilhalva; Corrêa, Érico Kunde.
Título: Staphylococcus xylosus fermentation of pork fatty waste: raw material for biodiesel production
Fonte: Braz. j. microbiol;47(3):675-679, July-Sept. 2016. tab, graf.
Idioma: en.
Resumo: ABSTRACT The need for cleaner sources of energy has stirred research into utilising alternate fuel sources with favourable emission and sustainability such as biodiesel. However, there are technical constraints that hinder the widespread use of some of the low cost raw materials such as pork fatty wastes. Currently available technology permits the use of lipolytic microorganisms to sustainably produce energy from fat sources; and several microorganisms and their metabolites are being investigated as potential energy sources. Thus, the aim of this study was to characterise the process of Staphylococcus xylosus mediated fermentation of pork fatty waste. We also wanted to explore the possibility of fermentation effecting a modification in the lipid carbon chain to reduce its melting point and thereby act directly on one of the main technical barriers to obtaining biodiesel from this abundant source of lipids. Pork fatty waste was obtained from slaughterhouses in southern Brazil during evisceration of the carcasses and the kidney casing of slaughtered animals was used as feedstock. Fermentation was performed in BHI broth with different concentrations of fatty waste and for different time periods which enabled evaluation of the effect of fermentation time on the melting point of swine fat. The lowest melting point was observed around 46 °C, indicating that these chemical and biological reactions can occur under milder conditions, and that such pre-treatment may further facilitate production of biodiesel from fatty animal waste.
Descritores: Staphylococcus/metabolismo
Biocombustíveis
Fermentação
Resíduos Industriais
-Biotransformação
Indústria Alimentícia
Carne Vermelha
Limites: Animais
Responsável: BR1.1 - BIREME


  8 / 171 LILACS  
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Id: biblio-839392
Autor: Hong, Sung-Jun; Park, Gun-Seok; Khan, Abdur Rahim; Jung, Byung Kwon; Shin, Jae-Ho.
Título: Draft genome sequence of a caprolactam degrader bacterium: Pseudomonas taiwanensis strain SJ9
Fonte: Braz. j. microbiol;48(2):187-188, April.-June 2017.
Idioma: en.
Resumo: Abstract Pseudomonas taiwanensis strain SJ9 is a caprolactam degrader, isolated from industrial wastewater in South Korea and considered to have the potential for caprolactam bioremediation. The genome of this strain is approximately 6.2 Mb (G + C content, 61.75%) with 6,010 protein-coding sequences (CDS), of which 46% are assigned to recognized functional genes. This draft genome of strain SJ9 will provide insights into the genetic basis of its caprolactam-degradation ability.
Descritores: Pseudomonas/genética
Pseudomonas/metabolismo
DNA Bacteriano/genética
DNA Bacteriano/química
Caprolactama/metabolismo
Genoma Bacteriano
Análise de Sequência de DNA
-Pseudomonas/isolamento & purificação
Composição de Bases
Microbiologia da Água
Biotransformação
Fases de Leitura Aberta
Anotação de Sequência Molecular
Resíduos Industriais
Coreia (Geográfico)
Responsável: BR1.1 - BIREME


  9 / 171 LILACS  
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Monteiro, Regina Teresa Rosim
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Id: biblio-839353
Autor: Dellamatrice, Priscila Maria; Silva-Stenico, Maria Estela; Moraes, Luiz Alberto Beraldo de; Fiore, Marli Fátima; Monteiro, Regina Teresa Rosim.
Título: Degradation of textile dyes by cyanobacteria
Fonte: Braz. j. microbiol;48(1):25-31, Jan.-Mar. 2017. tab, graf.
Idioma: en.
Resumo: Abstract Dyes are recalcitrant compounds that resist conventional biological treatments. The degradation of three textile dyes (Indigo, RBBR and Sulphur Black), and the dye-containing liquid effluent and solid waste from the Municipal Treatment Station, Americana, São Paulo, Brazil, by the cyanobacteria Anabaena flos-aquae UTCC64, Phormidium autumnale UTEX1580 and Synechococcus sp. PCC7942 was evaluated. The dye degradation efficiency of the cyanobacteria was compared with anaerobic and anaerobic-aerobic systems in terms of discolouration and toxicity evaluations. The discoloration was evaluated by absorption spectroscopy. Toxicity was measured using the organisms Hydra attenuata, the alga Selenastrum capricornutum and lettuce seeds. The three cyanobacteria showed the potential to remediate textile effluent by removing the colour and reducing the toxicity. However, the growth of cyanobacteria on sludge was slow and discoloration was not efficient. The cyanobacteria P. autumnale UTEX1580 was the only strain that completely degraded the indigo dye. An evaluation of the mutagenicity potential was performed by use of the micronucleus assay using Allium sp. No mutagenicity was observed after the treatment. Two metabolites were produced during the degradation, anthranilic acid and isatin, but toxicity did not increase after the treatment. The cyanobacteria showed the ability to degrade the dyes present in a textile effluent; therefore, they can be used in a tertiary treatment of effluents with recalcitrant compounds.
Descritores: Cianobactérias/metabolismo
Corantes/metabolismo
-Sementes/efeitos dos fármacos
Têxteis
Allium/efeitos dos fármacos
Brasil
Biotransformação
Alface/efeitos dos fármacos
Aerobiose
Corantes/toxicidade
Clorófitas/efeitos dos fármacos
Espectroscopia por Absorção de Raios X
Hydra/efeitos dos fármacos
Anaerobiose
Resíduos Industriais
Mutagênicos/metabolismo
Limites: Animais
Responsável: BR1.1 - BIREME


  10 / 171 LILACS  
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Araujo, M. S
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Id: biblio-1038674
Autor: Gonçalves, A. G. C. M; Pimentel, P. G; Gomes, S. P; Moreira, G. R; Feitosa, M. S; Araújo, M. S; Soares, S. L. S; Cardoso, S. C; Barroso, M. R. C.
Título: Comportamento ingestivo de cordeiros Santa Inês alimentados com resíduo de cervejaria desidratado / Ingestive behavior of Santa Ines lambs fed rations containing dehydrated brewery residue
Fonte: Arq. bras. med. vet. zootec. (Online);71(5):1719-1726, set.-out. 2019. tab.
Idioma: pt.
Projeto: Conselho Nacional de Desenvolvimento Científico e Tecnológico.
Resumo: Objetivou-se avaliar o comportamento ingestivo de cordeiros Santa Inês alimentados com resíduo de cervejaria desidratado (RCD). Foram utilizados 35 cordeiros, machos, não castrados, com peso médio inicial de 16,00±1,69kg e, aproximadamente, 70 dias de idade. Adotou-se o delineamento inteiramente ao acaso, com cinco tratamentos e sete repetições, consistindo os tratamentos em: 0; 20; 40; 60 e 80% de inclusão de RCD na porção concentrada da ração. A inclusão de RCD na ração não influenciou o tempo de alimentação (TAL; h/dia) e a eficiência de alimentação (gFDN/h; P>0,05). O TAL obtido neste estudo apresentou valor médio de 4,90h/dia. Observou-se efeito linear decrescente (P<0,05) com a inclusão do RCD, para as eficiências de alimentação (gMS/h) e ruminação (gMS/h e gFDN/h). Contudo, efeito linear crescente (P<0,05) foi constatado para tempo de ruminação e mastigação total, bem como para o número de mastigações merícicas por dia para os animais alimentados com o subproduto. A inclusão de resíduo de cervejaria desidratado influencia o comportamento ingestivo de cordeiros Santa Inês, diminuindo a eficiência de alimentação, quando relacionada ao consumo de matéria seca por hora, e aumentando o tempo de ruminação, podendo ser adicionado em até 20% na porção concentrada da ração.(AU)

The aim of this study was to evaluate the ingestive behavior of Santa Ines lambs fed dehydrated brewer's residue (DBR). Thirty-five male lambs were used, with an initial mean weight of 16.00±1.69kg and, approximately, 70 days of age. A completely randomized design was used, with five treatments and seven replicates, the treatments being: 0; 20; 40; 60 and 80% of inclusion of DBR in the concentrated portion of the ration. The inclusion of DBR in the ration did not influence feeding time (FT; h/day) and feeding efficiency (gNDF/h; P> 0.05). The FT obtained in this study had an average value of 4.90h/day. There was a decreasing linear effect (P< 0.05) for feed efficiency (gDM/h) and rumination efficiency (gDM/h and gNDF/h). However, linear increasing effect (P< 0.05) was observed for rumination and total chewing time, as well as for the number of chews per day for animals fed with the byproduct. The inclusion of dehydrated brewer's residue in the concentrate can influence the ingestive behavior of Santa Ines lambs, reducing feed efficiency, when related to the dry matter intake per hour, and increasing the total rumination time in Santa Ines lambs, it can be added up to 20% in the concentrated portion of the ration.(AU)
Descritores: Ovinos/crescimento & desenvolvimento
Indústria Cervejeira
Resíduos Industriais
Ração Animal/análise
Limites: Animais
Masculino
Responsável: BR68.1 - Biblioteca Virginie Buff D'Ápice



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