Home Itens selecionados Provedores de dados OAI Créditos Sobre Ajuda

			Busca avançada
	Provedor de dados BJM (4) Thai Agricultural (1) ArchiMer (1) Scientia Agricola (1) Autor Alves,V.F. (1) Baena,S. (1) Borowsky,Luciane Martins (1) Cardoso,Marisa (1) De Martinis,E.C.P. (1) Destro,M.T. (1) Díaz,C. (1) Fardeau,M.L. (1) Jirawat Kantakrienwong (1) Kashyap,S (1) Kooranee Tuitemwong (1) Nahas,Ely (1) Panrapee Iamtaeweejarloen (1) Patel,B.K.C. (1) Pravate Tuitemwong (1) Rigobelo,Everlon Cid (1) Riou, Stéphane Alain (1) Schmidt,Verônica (1) Souza,V.M. de (1) Mais... Palavra-chave MPN (7) 15N (1) 16S rRNA gene (1) Anaerobic peptide-degrading bacteria (1) Campylobacter spp. (1) Chlorination (1) Dehydrogenase (1) Denitrification (1) Dénitrification (1) Fish (1) Lagune (1) Listeria monocytogenes (1) Litter (1) MCCDA (1) Marine laboon (1) Methylotrophs (1) Microbial respiration (1) Minced pork (1) N-serve (1) N6SERVE (1) Mais... Tipo do documento Info:eu-repo/semantics/article (5) Collection (1) Text (1) Ano 2011 (1) 2010 (2) 2008 (1) 2007 (1) 2004 (1) 1999 (1) Mais... País Brazil (5) France (1) Thailand (1) Idioma Inglês (5) Francês (1) Thailandês (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 7 Primeira ... 1 ... Última Cycle de l'azote à l' interface eau-sédiment dans le Bassin d'Arcachon : rôle des bactéries dans les processus de perte en azote (nitrification-dénitrification) ArchiMer Riou, Stéphane Alain. Bacterial nitrification and denitrification were studied in the sediments of the Bassin d'Arcachon, a macrotidallagoon located in the Southwestern Atlantic French coast colonized by extensive Zostera noltii  meadows. Nitrifiers were enumerated by MPN method. Densities were law : from 102 to 104 bacteria per ml of sediment presenting an increase during winter. Nitrifying activities were measured by NH4+  accumulation N-serve block technique. Activities were ranged from 0 to 90 µmol m-2 h-1 and nitrification represented 120-140 mmol m-2 yr-1 for intertidal sediments. The 15N  isotope pairing technique was applied to sediment samples from the whole bay for determining the denitrification rates. Average rates were 10-20 µmol m·2 h-1 with a maximum of 75 µmol... Tipo: Text Palavras-chave: Nitrification; Dénitrification; Sédiment; Zostera noltii; Lagune; NPP; N6SERVE; 15N; Nitrification; Denitrification; Sediment; Zostera noltii; Marine laboon; MPN; N-serve; 15N. Ano: 1999 URL: http://archimer.ifremer.fr/doc/00443/55439/56959.pdf Seasonal fluctuations of bacterial population and microbial activity in soils cultivated with eucalyptus and pinus Scientia Agricola Rigobelo,Everlon Cid; Nahas,Ely. The accumulation and decomposition of litter in soils under forests depend on climatic and biotic conditions. This work evaluated the effect of monthly rainfall and temperature on total bacteria, and on the dehydrogenase and respiration microbial activities. The effects of organic matter, total organic C and soil moisture were also evaluated. Performed from April, 1999 to March, 2000 in an Eucalyptus-cultivated and Pinus-cultivated Oxisol (Typic Haplustox), the study showed that climate and the soil variables affect the total number of bacteria and the microbial activities. The highest air temperatures and rainfall intensities were found during the Summer and, consequently, all the studied variables were maximal during this period. Minimal values varied... Tipo: Info:eu-repo/semantics/article Palavras-chave: MPN; Dehydrogenase; Microbial respiration; Litter; Temperature. Ano: 2004 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162004000100015 การลดเชื้อ Campylobacter jejuni ในซากไก่ด้วยคลอรีนและโอโซน Thai Agricultural Panrapee Iamtaeweejarloen; Pravate Tuitemwong; Jirawat Kantakrienwong; Kooranee Tuitemwong. Objectives of this study were to investigate the process sensitivity to Campylobacter spp. and to assess the reduction efficiency of ozonation and chlorination in chilling step of the poultry process using data derived from mCCDA plating and SimPlate MPN methods. Samples of 80 were collected from 4 process steps in the processing plant (scalding, plucking, inside outside washing, and chilling). Numbers of Campylobacter spp. on mCCDA at the respective steps were 3.35, 3.20, 2.68 and 0.20 logCFU/ml, while the SimPlate MPN had 2.54, 2.48, 2.31 and 0.84 log CFU/ml, respectively. Chilling is the most sensitive process to reduce the number of bacteria on both media. Chlorination at 1.5 ppm reduced Campylobacter spp. by 97.46% and 58.62% on mCCDA and SimPlate... Tipo: Collection Palavras-chave: Poultry process; Ozonation; Campylobacter spp.; MPN; Sensitivity; Chlorination; MCCDA; SimPlate; ไก่สด; การผลิตเนื้อไก่; คลอรีน; โอโซน; การลดเชื้อแบคทีเรีย; ความไว; การลดอุณหภูมิซาก. Ano: 2010 URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5234 Estimation of most probable number of Salmonella in minced pork samples BJM Borowsky,Luciane Martins; Schmidt,Verônica; Cardoso,Marisa. The quantification of microorganisms present in food samples is an important step to assess the risk to consumers. The number of salmonellae in 20 positive samples of minced pork was determined by the Most Probable Number method. Counts ranging between <3 and 240 cfu.g-1 were found in the analyzed samples. Tipo: Info:eu-repo/semantics/article Palavras-chave: Salmonella sp.; MPN; Minced pork. Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822007000300030 Quantitative evaluation of Listeria monocytogenes in fresh and processed surubim fish (Pseudoplatystoma sp) BJM Souza,V.M. de; Alves,V.F.; Destro,M.T.; De Martinis,E.C.P.. L. monocytogenes is a foodborne psychrotrophic bacterial pathogen of special importance for minimally processed foods. In this work, it was enumerated in samples of surubim fish by MPN technique. The population of L. monocytogenes was estimated as < 0.012 MPN/cm² in fresh and < 0.03 MPN/g in minimally processed fish. Tipo: Info:eu-repo/semantics/article Palavras-chave: Listeria monocytogenes; MPN; Fish; Surubim. Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822008000300023 Peptidolytic microbial community of methanogenic reactors from two modified UASBs of brewery industries BJM Díaz,C.; Baena,S.; Patel,B.K.C.; Fardeau,M.L.. We studied the peptide-degrading anaerobic communities of methanogenic reactors from two mesophilic full-scale modified upflow anaerobic sludge blanket (UASB) reactors treating brewery wastewater in Colombia. Most probable number (MPN) counts varied between 7.1 x 10(8) and 6.6 x 10(9) bacteria/g volatile suspended solids VSS (Methanogenic Reactor 1) and 7.2 x 10(6) and 6.4 x 10(7) bacteria/g (VSS) (Methanogenic Reactor 2). Metabolites detected in the highest positive MPN dilutions in both reactors were mostly acetate, propionate, isovalerate and, in some cases, negligible concentrations of butyrate. Using the highest positive dilutions of MPN counts, 50 dominant strains were isolated from both reactors, and 12 strains were selected for sequencing their 16S... Tipo: Info:eu-repo/semantics/article Palavras-chave: Anaerobic peptide-degrading bacteria; MPN; UASB; 16S rRNA gene. Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822010000300022 Evaluating most probable number method to count and isolate viable methylotrophs BJM Kashyap,S. Nine different receptacles were tested with the MPN method to determine which receptacle was most reliable and economical for MPN counts. Results showed that 96 well PCR plate were the best vessels for this type of analysis and facilitated the isolation of viable Methylotrophs. Tipo: Info:eu-repo/semantics/article Palavras-chave: Methylotrophs; MPN; Receptacle. Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822011000100006 Registros recuperados: 7 Primeira ... 1 ... Última

Empresa Brasileira de Pesquisa Agropecuária - Embrapa Todos os direitos reservados, conforme Lei n° 9.610 Política de Privacidade Área restrita		Embrapa Parque Estação Biológica - PqEB s/n° Brasília, DF - Brasil - CEP 70770-901 Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco