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| Registros recuperados: 44 | |
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| MOREIRA, B. R. de A.; VIANA, R. da S.; CRUZ, V. H.; LOPES, P. R. M.; MIASAKI, C. T.; MAGALHÃES, A. C.; FIGUEIREDO, P. A. M. de; LISBOA, L. A. M.; RAMOS, S. B.; MAY, A.; CARASCHI, J. C.. |
| Abstract: The development and implementation of strategies to assist safe and effective transport and storage of pellets in containers and indoor facilities without heating systems are challenging. This study primarily aimed to reshape the organic fraction of municipal solid waste into a liquid-state binder in order to develop freezing?defrosting-proof non-wood pellets. The introduction of the standard solution of food waste into the process of pelleting consisted of stirring it together with the residual biomass from distillation of cellulosic bioethanol or alternatively spraying very fine droplets on the layer of the starting material before it entered the pilot-scale automatic machine at 200 MPa and 125 °C. The addition by spraying of carbohydrate-rich... |
| Tipo: Artigo em periódico indexado (ALICE) |
Palavras-chave: Agro-industrial residue; Defrosting; Fractal analysis; Fractures; Waste-to-energy; Resíduo Solido; Resíduo Agrícola; Reciclagem; Pellet; Bioenergia; Pellets; Agricultural wastes; Solid wastes; Durability; Storage; Transportation; Renewable energy sources; Freezing. |
| Ano: 2020 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1125259 |
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| SALOMAO, A. N.; SANTOS, I. R. I.; JOSE, S. C. B. R.. |
| Durante a conservação a -20 °C, sementes aleuro-lipídicas podem perder, gradativamente a germinabilidade e a viabilidade. Nesse trabalho, foi avaliado o efeito da exposição a -20 °C, por períodos que variaram de 11 a 25 anos, em sementes de 19 acessos de espécies do gênero Copaifera L., com teores de água de 5,6% a 10,5%. Após o congelamento, houve redução significativa (P<0,05) na germinabilidade de três amostras e aumento significativo (P<0,05) do percentual germinativo de uma amostra. Houve decréscimo, não significativo (P<0,05), do potencial fisiológico em sementes de 11 amostras, após exposição a -20 °C, podendo ser, provavelmente, indício de deterioração do material. Em contraste, o armazenamento a -20 °C, acondicionando-se as sementes em... |
| Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E) |
Palavras-chave: Seed; Germinação; Conservação; Congelamento; Semente; Germination; Freezing. |
| Ano: 2020 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125806 |
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| Silva,A.R.; Cardoso,R.C.S.; Silva,L.D.M.. |
| Standardized sperm concentration and volume:volume extension were compared as dilution rates for canine semen freezing. Six proven stud dogs were submitted to two seminal collections by manual stimulation. Semen was evaluated and extended in tris plus egg-yolk and glycerol according to two different dilution rates. The first one was based on a standardized sperm concentration of 200x10(6) spermatozoa/ml and the second was a volume:volume extension at a proportion of one part semen to one part extender. Semen was frozen, stored in liquid nitrogen and thawed after one week. Sperm motility and vigor were appraised after each stage of the process and at 15 and 30min post-thawing. Sperm morphology was analyzed after collection and thawing. No differences were... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Dog; Semen; Extender; Freezing; Dilution. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352005000600010 |
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| SANTOS,Silvia Edelweiss Crusco dos; VANNUCCHI,Camila Infantosi; SATZINGER,Sandra; ASSUMPÇÃO,Mayra Elena Ortiz DAvila; VISINTIN,José Antonio. |
| Semen was collected from six stud dogs to compare five extenders in the semen freezing process. Each ejaculate was divided in five parts and added to tris-fructose-citric acid, glicine, lactose, skim milk and tris-fructose-citrate extenders. The semen was diluted at 37°C in extenders without glycerol, in the ratio 1:1 and cooled for 60 minutes to reach a 5°C temperature. Then, extenders with glycerol in the ratio of 2:1 were added to give the final prefreezing concentration of 4% of glycerol. The diluted semen with the cryoprotectant was maintained for a further 60 minutes in refrigeration to equilibrate the spermatozoa in the glycerol and packaged in 0.5 ml plastic straws. The straws were maintained for 30 minutes in vapor, plunged and stored in liquid... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Diluents; Freezing; Semen; Dogs. |
| Ano: 1999 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-95961999000500004 |
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| Giacomazzi, Sophie; Leroi, Francoise; Joffraud, Jean-jacques. |
| Aims: To compare three bacterial DNA extraction procedures on cold-smoked salmon (CSS) and assess the impact on their efficiency of two physical treatments of the food matrix, ionizing irradiation and freezing. Methods and Results: As molecular methods for bacterial detection have become an important analytical tool, we compared bacterial DNA extraction procedures on CSS. Working with frozen and irradiated CSS, we obtained negative responses from samples known to be highly contaminated. Thus, we decided to study the impact of these two physical treatments on bacterial DNA extraction procedures. The efficiency of bacterial DNA extraction directly from the fish matrix suspension was measured by an rpoB PCR-based reaction. The results demonstrated that the... |
| Tipo: Text |
Palavras-chave: RpoB gene; PCR; Ionizing irradiation; Freezing; DNA extraction; Cold smoked salmon. |
| Ano: 2005 |
URL: http://archimer.ifremer.fr/doc/2005/publication-1106.pdf |
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| MOTA, A. P. Z.; OLIVEIRA, T. N.; VINSON, C. C.; WILLIAMS, T. C. R.; COSTA, M. M. do C.; ARAUJO, A. C. G. de; DANCHIN, E. G. J.; SA, M. F. G. de; GUIMARAES, P. M.; BRASILEIRO, A. C. M.. |
| bitstream/item/196886/1/fpls-10-00497.pdf |
| Tipo: Artigo em periódico indexado (ALICE) |
Palavras-chave: Genome-wide; Arabidopsis; Drought; Freezing; Meloidogyne; Root-knot nematodes. |
| Ano: 2019 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1108633 |
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| RINALDI, M. M.; VIEIRA, E. A.; FIALHO, J. de F.; MALAQUIAS, J. V.. |
| Avaliaram-se as características físico-químicas, sensoriais e microbiológicas durante o armazenamento de raízes de mandioca submetidas a diferentes métodos de congelamento. As raízes foram caracterizadas fisicamente, processadas, acondicionadas em embalagem de polietileno de baixa densidade (PEBD) de 100 µm de espessura e submetidas aos diferentes tratamentos: congelamento e armazenamento a ?18 °C; congelamento e armazenamento a ?80 °C; congelamento com nitrogênio líquido e armazenamento a ?80 °C. O período de armazenamento foi de 31 dias. O produto submetido a todos os tratamentos apresentou níveis aceitáveis de pH, acidez titulável, sólidos solúveis, ratio, ácido ascórbico e tempo para a cocção, bem como quanto à contagem dos microrganismos avaliados.... |
| Tipo: Artigo em periódico indexado (ALICE) |
Palavras-chave: Mandioca de mesa; Manihot esculenta Crantz; Conservação pós-colheita; Distrito Federal; Preservação de alimento; Armazenamento de alimento; Congelamento; Mandioca; Manihot esculenta; Food preservation; Food storage; Freezing; Cassava; Manihot esculenta; Postharvest treatment; Brazil. |
| Ano: 2015 |
URL: http://www.alice.cnptia.embrapa.br/handle/doc/1026003 |
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| MACHADO, R.; SIMPLÍCIO, A. A.; SANTOS, J. W.; BARBIERI, M. E.. |
| Resumo: Objetiando quantificar os efeitos inlpostos pela diluiçao e processan1ento para a congelaçao do sêmen de carneiros, foram avaliados três diluentes. Para tanto util izou-se 20 ejaculados, obtidos através de vagina artificial, de 20 carneiros adultos da raça Santa Inês. Apoós a colheita, o sêmen foi avaliado quanto à motilidade individual progressiva (MIP), vigor (V), morfologia de acrossonla após coloraçao pela Giemsa (MA) e porcentagem de vivos e mortcos apoós coloraçao pela eosina-nigrosina (VM). Cada ejaculado foi dividido em três aliquotas, de igual volume, diluidos numa proporçao de 1:5 (v :v) usando diluentes não gl icerlizados, à base de leite desnatado (L), citrato-gema (C) e kiev (K). Após essa diluiçao, preparou-se lâmina para avaliaçao de... |
| Tipo: Resumo em anais de congresso (ALICE) |
Palavras-chave: Diluidor; Extenders; Freezing; Ovino; Reprodução animal; Sêmen; Carneiro; Congelamento; Sheep; Semen diluents; Animal reproduction. |
| Ano: 1989 |
URL: http://www.alice.cnptia.embrapa.br/handle/doc/514108 |
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| GONÇALVES,Maíra de Paula; SILVEIRA JUNIOR,Vivaldo. |
| Abstract In this work, a model of the process of freezing strawberries placed in boxes using forced air tunnel was studied. A strategy of operating condition modification in each stage of the process (pre-cooling, freezing step and sub-cooling) was applied, in a simulated process, regarding air temperature change. Time and energy consumption behaviors due to air temperature conditions in the tunnel were evaluated for each stage. Air temperature at different process stages affected both process times and system thermal demands. Operating conditions for each stage, which provided the best system global performance, were chosen, aiming energy consumption reduction without damaging product final quality, once each stage minimum requirements were taken into... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Freezing; Energy economy; Forced convection; Packaged food products. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612018000200341 |
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| Chevallier, Frédérik. |
| Cryopreservation tests were carried out for Platymonas "Batan" sp., P. suesica, Isochrysis aff galbana, Chlorella minutissima, Nannochloris occulata, Chaetoceros gracilis and C. "BA" sp. The focus of the protocol was based on the duration of incorporation and cryoprotector concentration (DMSO). Two methods were used to compare the effects of each freezing protocol for algae survival. The first method allows evaluating survival rate through orange acridine coloration and epifluorescence microscope readings. The second one requires culturing each sample and growth curbs are established through daily readings of algal solutions optical density. Freezing the samples was either done directly through liquid nitrogen freezing (-196°C) or through slow freezing,... |
| Tipo: Text |
Palavras-chave: Freezing; DMSO; Liquid nitrogen; Micro algae; Congélation; DMSO; Azote liquide; Micro algues. |
| Ano: 1991 |
URL: http://archimer.ifremer.fr/doc/1991/rapport-1747.pdf |
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| Prado,L.O.C.; Rossetto,V.J.V.; Carvalho,L.M.C.R.; Ferreira,A.P.; Matsubara,L.M.; Rodrigues,J.C.Z.; Brandão,C.V.S.. |
| ABSTRACT The cryosurgery is a very useful therapy for the treatment of a variety of neoplastic and non-neoplastic processes. Nevertheless, it is still poorly described as an option for the treatment of specific cutaneous neoplasms, such as squamous cell carcinoma. The purpose of the present study was to analyze the clinical response of cryosurgery for the treatment of squamous cell carcinoma in cats. For this 13 squamous cell carcinoma lesions were selected in 11 cats, diagnosed through citopathological and/or histopathological examinations. The lesions were frozen using liquid nitrogen spray, and the evaluations were performed in the moment of freeze and approximately every 15 days until the wound was completely healed. The response of cryosurgery was... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Epidermoid carcinoma; Freezing; Skin neoplasms. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352017000400877 |
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| SAVIO,Juliana; PAROUL,Natalia; BACKES,Geciane Toniazzo; VALDUGA,Eunice; OLIVEIRA,Débora de; BARBOSA,Juliana; CANSIAN,Rogério Luis. |
| Abstract The sensory, physical-chemical and microbiological characteristics of boneless chicken thighs and drumsticks stored at different temperatures were evaluated. Samples stored at −6 and −12 °C, in natura and cooked, presented changes in sensory characteristics from the sixth and fifth month of storage, respectively. In natura samples kept at −18 °C presented sensory modification from the eighth month, and cooked samples did not show alterations during 12 months of storage. For lipid oxidation, differences were observed between −6 and −12 °C by the third month and between −12 and −18 °C after 12 months of storage. Related to protein oxidation, samples stored at −18 °C did not differ from the standard (0 days), showing values of 6.03 nmol carbonyl/mg... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Chicken; Freezing; Stability; Storage. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612019000500041 |
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| Rebechi-Baggio,Débora; Richardi,Vinicius S.; Vicentini,Maiara; Guiloski,Izonete C.; Assis,Helena C. Silva de; Navarro-Silva,Mário A.. |
| ABSTRACT Changes in physiology of the nervous system and metabolism can be detected through the activity of acetylcholinesterase (AChE), alpha esterase (EST-a) and beta esterase (EST-ß) in chironomids exposed to pollutants. However, to understand the real effect of xenobiotics on organisms, it is important to investigate how certain factors can interfere with enzyme activity. We investigated the effects of different temperatures, food stress and two steps of the enzymatic protocol on the activity of AChE, EST-a and EST-ß in Chironomus sancticaroli. In experiment of thermal stress individuals from the egg stage to the fourth larval instar were exposed to different temperatures (20, 25 and 30 °C). In food stress experiment, larvae were reared until IV instar... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Centrifugation; Freezing; Food stress; Thermal stress. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262016000400341 |
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| SILVA, E. P. da; CUNHA, G. R. da; PIRES, J. L. F.; DALMAGO, G. A.; PASINATO, A.. |
| O objetivo deste trabalho foi avaliar a influência da aclimatação, da intensidade de geada e da disponibilidade hídrica sobre os danos causados pela geada em trigo. Os experimentos foram conduzidos em telados, com trigo cultivado em vasos. A aclimatação e a incidência de geada foram simuladas em câmaras de crescimento. Os fatores abióticos avaliados foram: regimes de aclimatação (com e sem); gradiente de temperatura (2, -2, -4 e -7°C); e variação de disponibilidade hídrica no solo, antes da geada (9, 6, 3 e 1 dia sem irrigação). Todos os fatores foram avaliados no afilhamento, alongamento e espigamento das cultivares: BR-18 Terena, mais tolerante à geada; e BRS 194, menos tolerante. As variáveis avaliadas foram: grau de queima de folhas, sete dias após a... |
| Tipo: Artigo em periódico indexado (ALICE) |
Palavras-chave: Congelamento; Deficit hídrico; Estádio fenológico; Acclimatization; Freezing; Growth stage; Triticum aestivum; Water deficit. |
| Ano: 2008 |
URL: http://www.alice.cnptia.embrapa.br/handle/doc/824305 |
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| Registros recuperados: 44 | |
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