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| Registros recuperados: 22 | |
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| Costa,Clarissa Frota Macatrão; Monteiro Neto,Valério; Santos,Bruno Rafael de Carvalho; Costa,Bruno Rafael Rabelo; Azevedo,Alexandre; Serra,Josilene Lima; Mendes,Hermínio Benítez Rabello; Nascimento,Adenilde Ribeiro; Mendes,Mariana Bonfim Pinto; Kuppinger,Oliver. |
| The Port Complex of Maranhão (PCM) is the second largest port complex in Brazil, receiving ships with large volumes of ballast water. To evaluate the microbiological quality of its waters, physicochemical parameters (pH and salinity), the number of coliforms (thermotolerants and totals), and the presence of enterobacterias and diarrheagenic Escherichia coli strains were analyzed. In order to identify the presence of E. coli virulence genes target regions of the stx, elt, est, aggR, CVD432, ipaH and eae nucleotide sequences were studied. The presence of totals and thermotolerants coliforms were positive. Analyzing the salinity parameter, a significant increase in total coliforms was observed during the rainy season. We identified the species Escherichia... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Microbiological analysis; Coliforms; Enterobacterias; Ballast water; Escherichia coli. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822014000300026 |
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| QUISCA,Richard Pacheco; MORÁN,Jorge Vargas; GALLOZA,Gilberto García; ARIAS,Jonnatan Victor Bañon; MONTOYA,Enrique Neira; URQUIZO,Fanny Ludeña; RAMÍREZ,Miriam Elizabeth Ramos; YACCHI,Teresa Alvarado; CHÁVEZ,Tarsila Tuesta. |
| Abstract Over the time, fresh cheese undergoes changes in its physicochemical and sensorial properties, mostly associated to the loss of moisture, which directly affects the texture and yield. In this sutdy, we elaborated an alternative formulation for the preparation of cheese with Peruvian tara gum Caesalpinia spinosa, for moisture retention increasing, without loss of sensory acceptance. Different formulations were prepared by modifying amounts of salt and tara gum to achieve the highest sensory acceptability, without loss of texture, water and weight. Microbiological tests were performed in agreement with Peruvian regulations, showing limits of mold, yeast, coliform, Salmonella sp and bacteria below the stablished limit. Cheese with addition of tara... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fresh cheese; Tara gum; Sensory acceptance; Microbiological analysis; Moisture retention. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612019000100210 |
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| Siqueira,Leonardo Pereira de; Sarubbo,Leonie Asfora; Shinohara,Neide Kazue Sakugawa; Valencia,Marcela Sarmento; Cortez,Neila Mello Santos; Andrade,Samara Alvachian Cardoso. |
| ABSTRACT: The present research aimed to optimize the process of osmotic dehydration (OD) of ginger with hypertonic sucrose solution employing response surface methodology. A 23 experimental planning was carried out and 17 experimental assays were performed based on three independent variables (temperature, concentration of the osmotic solution and immersion time) and three dependent variables (moisture loss (ML), solids gain (SG) and dehydration efficiency index (DEI)). The selected assay conditions exhibited the preferred DEI value (the highest ML and lower SG), which were considered in the optimization. Assay 16 demonstrated to be the most favorable conditions for the osmotic dehydration of ginger (DEI =1.61) at 40 40 °C, 50 °Brix and 90 minutes of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Zingiber officinale Roscoe; Water loss; Microbiological analysis. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782019001000754 |
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| White, D. |
| Microbes in nature are often concentrated on surfaces where they exist in microcolonies of mixed composition. The assay of these mixed microbial consortia by utilizing biochemical components eliminates the problems associated with cultural selectivity of viable counts or the requirement for quantitative release from surfaces required in some microscopic techniques. The assay of cellular components restricted to subsets of the microbial community gives insights into the community structure of the biofilm whereas assay of cellular components common to all cells can be used for biomass estimations. Formation of endogenous storage materials can be utilized as measures of nutritional status and rates of formation or turnover of specific "signatures" from... |
| Tipo: Text |
Palavras-chave: Bacteria; Fouling; Bioassays; Metabolism; Surfaces; Bacteria collecting devices; Culture media; Microbiological analysis. |
| Ano: 1984 |
URL: http://archimer.ifremer.fr/doc/1984/acte-963.pdf |
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| Bruni, V; Crisafi, E; Maugeri, T; Zaccone, R. |
| 110 Vibrio strains were isolated, at various times of the year, from samples of sea-water supply, breeding-tank water and discarded fish used as food at the breeding stations. From the results obtained by the biochemical and cultural tests, it was possible to identify most of the isolated strains as Vibrio anguillarum . Strains with intermediate characteristics, above-all positive saccharose, proved to be numerous. The authors discuss the occurrence, in particular environments such as those being studied, of atypical or intermediate vibrio strains which are difficult to classify. |
| Tipo: Text |
Palavras-chave: Vibrio; Microbiological culture; Bacteria; Food; Minced products; Fish ponds; Sea water; Identification; Marine aquaculture; Bacteria collecting devices; Microbiological analysis. |
| Ano: 1984 |
URL: http://archimer.ifremer.fr/doc/1984/acte-997.pdf |
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| Lakshmanaperumalsamy, P; Chandramohan, D; Natarajan, R. |
| A seasonal study on the occurrence and distribution of total aerobic microbial population (TMP), total aerobic heterotrophic bacteria (THB), actinomycetes and fungi in the sediments of Vellar Estuary, South India (11 degree 29'N 79 degree 46'E) was carried out during Jan. to Dec. 1975. Sediment samples were collected at monthly intervals, from 4 stations and analysed microbiologically. In general, bacterial population was found to be dominant followed by actinomycetes and fungi. The max peak for TMP, THB and fungi were recorded in Nov. in all stations. Monsoon season supported TMP, THB and fungi to a high level and it was summer for actinomycetes. Statistical analysis (Kendall's tau) showed a significantly positive correlation among TMP, THB, actinomycetes... |
| Tipo: Text |
Palavras-chave: Actinomycetes; Population number; Statistical analysis; Seasonal variations; Fungi; Bacteria; Sediment analysis; Microbiological analysis. |
| Ano: 1984 |
URL: http://archimer.ifremer.fr/doc/1984/acte-943.pdf |
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| Velji, M; Albright, L. |
| A technique has been investigated for dispersing adhered marine bacteria from various surfaces prior to direct counting. The bacterial cells were initially preserved and strengthened by use of 3.7% formaldehyde (v/v final concentration). Seawater samples were then treated with 0.001 M of tetrasodium pyrophosphate (final concentration), a sequestering and deflocculating agent. Surface sediment and kelp disc samples were treated with 0.01 M tetrasodium pyrophosphate (final concentration) after having been suspended in 0.44 M sodium chloride solution. These samples were incubated for 15-30 min. Subsequently, the samples were treated with ultrasound (100 W) for 30 to 45 s. This technique resulted in an even dispersion of most bacterial cells in the samples.... |
| Tipo: Text |
Palavras-chave: Bacteria; Microbiological analysis; Flocculation; Ultrasonics; Bacterial counters. |
| Ano: 1984 |
URL: http://archimer.ifremer.fr/doc/1984/acte-968.pdf |
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| Fera, P; Prieur, D. |
| Before the building of an (OTEC) power plant, and experimental station was built near the entrance of the Bay of Brest in order to do preliminary studies. Using these facilities, the bacterial colonization of three substrata (stainless steel UB6, aluminium AG4, polycarbonate filters) was studied in an open seawater system, with a speed of 0,7 m s super(-1). The study was performed between May 1983 and May 1984, including seven experiments of 15 days each. Bacteria colonizing the metallic surfaces were counted by scanning electron microscopy, and bacteria colonizing the polycarbonate filters counted by epifluorescence microscopy. On the three substrata, bacterial colonization occurred in three successive stages: initial colonization, sometimes unsteady... |
| Tipo: Text |
Palavras-chave: Fouling; OTEC plants; Bacteria; Colonization; Adhesion; Microbiological analysis; Surface films. |
| Ano: 1984 |
URL: http://archimer.ifremer.fr/doc/1984/acte-964.pdf |
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| Zerai, T.; Mestiri, F.; Romdhane, M.S.; Mejri, S.. |
| L’effet de l’addition de trois types d’additifs naturels: le thym (Thymus vulgaris), le laurier (Laurus nobilis) et le romarin (Rosmarinus officinalis) sur l’amélioration de la conservation de l’anguille fumée a été étudié. Une comparaison des caractéristiques microbiologiques, physicochimiques et organoleptiques du produit, par rapport au lot témoin, fumé sans additifs a été réalisée durant 5 semaines à 4 °C. Nous avons trouvé que l’addition du thym, a permit une réduction de la flore aérobie mésophyte totale (FAMT), a ralenti la formation de l’azote basique volatil total (ABVT), et a permit une réduction de l’oxydation de la matière grasse. Le lot ainsi traité, a été très apprécié par les dégustateurs, et le thym a eu un effet améliorateur sur le... |
| Tipo: Journal Contribution |
Palavras-chave: Chemical analysis; Cured products; Microbiological analysis; Processing fishery products; Quality; Storage life; Taste tests; Anguilla anguilla; Laurus nobilis; Rosmarinus officinalis; Http://aims.fao.org/aos/agrovoc/c_41152; Http://aims.fao.org/aos/agrovoc/c_4227; Http://aims.fao.org/aos/agrovoc/c_6660. |
| Ano: 2006 |
URL: http://hdl.handle.net/1834/4278 |
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| Palacios, C.; Burgos, L.. |
| Se analiza los datos tomados en el área marino costera de tres importantes islas de Galápagos como son: Bahía Academia-Santa Cruz, Caleta Aeolian-Baltra y Puerto Villamil-Isabela, durante los meses de junio y julio del 2007, considerando la distribución superficial de los parámetros físicos, químicos en cada una de las áreas. Se efectúa el análisis comparativo de las concentraciones promedios y la calidad microbiológica con los límites permisibles establecidos en la Legislación Secundaria Ambiental, concluyendo en general, que la calidad del agua está acorde con la vida marina, pero que a pesar de no presentar mayores problemas de contaminación, existen área muy puntuales que ameritan mayor cuidado y seguimiento para preservar y conservar estas islas que... |
| Tipo: Journal Contribution |
Palavras-chave: Water quality; Microbiological analysis; Physical properties; Data processing; Water quality; Microbiological analysis; Physical properties; Data processing; Http://aims.fao.org/aos/agrovoc/c_16061; Http://aims.fao.org/aos/agrovoc/c_25302; Http://aims.fao.org/aos/agrovoc/c_13328; Http://aims.fao.org/aos/agrovoc/c_10289. |
| Ano: 2009 |
URL: http://hdl.handle.net/1834/3369 |
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| Costagliola, M.; Seigneur, G.N.; Jurquiza, V.. |
| As a result of an agreement signed by the Municipal Government of Baradero Buenos Aires Province, Argentina and the INIDEP, the sanitary quality of the Baradero River waters was studied and fish safety assessed. Results of five field surveys carried out between 1993 and 1997 are studied. Organochlorine and organophosphorate pesticide residues, as well as traces of heavy metals were analyzed in 49 fish specimens and aerobic heterotrophic bacteria (AHB), total coliform bacteria (TC) and fecal coliform bacteria (FC) were counted out in 7 sampling stations placed on the coast and the riverbed. Alpha Hexachlorohexane, gamma Hexachlorohexane, beta Hexachlorohexane, Aldrin, Heptachlor epoxide, pp'DDE and Dieldrin were detected in fish tissues. The values of AHB... |
| Tipo: Journal Contribution |
Palavras-chave: Freshwater pollution; Pollution surveys; Chemical analysis; Water analysis; Microbiological analysis; Pesticides; Public health; Pathogenic bacteria; Pesticides; Public health; Water analysis; Microbiological analysis; Pathogenic bacteria; Http://aims.fao.org/aos/agrovoc/c_5739; Http://aims.fao.org/aos/agrovoc/c_6349; Http://aims.fao.org/aos/agrovoc/c_16064; Http://aims.fao.org/aos/agrovoc/c_25302; Http://aims.fao.org/aos/agrovoc/c_34317. |
| Ano: 2003 |
URL: http://hdl.handle.net/1834/2417 |
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| Registros recuperados: 22 | |
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