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| Registros recuperados: 44 | |
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| Ragueneau, O.; Regaudie-de-gioux, A.; Moriceau, B.; Gallinari, M.; Vangriesheim, Annick; Baurand, F.; Khripounoff, Alexis. |
| To elucidate the origin of the silicic acid (DSi) anomaly observed along the 4000 isobath on the Congo margin, we have established a benthic Si mass balance and performed direct measurements of biogenic silica (bSiO(2)) dissolution in the deep waters and in the sediments. Results strongly suggest that the anomaly originates from the sediments; the intensity of DSi recycling is consistent with the degradation of organic matter, as observed from Si:O-2 ratios in the benthic fluxes compared to that ratio observed in the anomalies. Strong imbalances, observed in both the Si and C mass balances, suggest that the biogenic matter that degrades and dissolves in these sediments near 4000 m does not come from pelagic sedimentation. It is probably not coming also... |
| Tipo: Text |
Palavras-chave: Congo; Continental margin; Preservation; Dissolution; Biogenic silica. |
| Ano: 2009 |
URL: http://archimer.ifremer.fr/doc/2009/publication-7410.pdf |
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| Bertolino, Maria Lúcia. |
| This work has as objective to argue the environmental question concerning the conservation of the forests and biodiversity. One major issue in this question is that the Brazilian forest sector contributes with an important parcel for the Brazilian economy, generates products for direct consumption or for exportation, generates taxes and jobs for the population and, still, bring positive and negative consequences in the conservation and preservation of both renewable and not renewable natural resources. The forest economy has been, historically, responsible for one of the five largest positive commercial balances of the country and still it supplies 85% of all the products of forest origin found in the national market, therefore, alleviating the pressure on... |
| Tipo: Article |
Palavras-chave: Preservation; Biodiversity; Forests. |
| Ano: 2007 |
URL: http://hdl.handle.net/2315/106 |
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| Marie, Dominique; Rigaut-jalabert, Fabienne; Vaulot, Daniel. |
| Preservation of cells, choice of fixative, storage, and thawing conditions are recurrent issues for the analysis of phytoplankton by flow cytometry. We examined the effects of addition of the surfactant Pluronic F68 to glutaraldehyde-fixed photosynthetic organisms in cultures and natural samples. In particular, we examined cell losses and modifications of side scatter (a proxy of cell size) and fluorescence of natural pigments. We found that different marine phytoplankton species react differently to the action of Pluronic F68. In particular, photosynthetic prokaryotes are less sensitive than eukaryotes. Observed cell losses may result from cell lysis or from cell adhesion to the walls of plastic tubes that are commonly used for flow cytometry analysis.... |
| Tipo: Text |
Palavras-chave: Phytoplankton; Flow cytometry; Preservation; Pluronic F68; Glutaraldehyde. |
| Ano: 2014 |
URL: https://archimer.ifremer.fr/doc/00374/48493/48858.pdf |
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| Sharma,Nivedita; Gupta,Anupama; Gautam,Neha. |
| In the present study, a bacterium isolated from Marcha- a herbal cake used as traditional starter culture to ferment local wine in North East India, was evaluated for bacteriocin like inhibitory substance production and was tested against six food borne/spoilage causing pathogens viz. Listeria monocytogenes MTCC 839, Bacillus subtilis MTCC 121, Clostridium perfringens MTCC 450, Staphylococcus aureus, Lactobacillus plantarum and Leuconostoc mesenteroides MTCC 107 by using bit/disc method followed by well diffusion method. The bacterial isolate was identified as Brevibacillus borstelensis on the basis of phenotypic, biochemical and molecular characteristics using 16Sr RNA gene technique. Bacteriocin like inhibitory substance produced by Brevibacillus... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bacteriocin; Purification; SDS -PAGE; Marcha; Preservation. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822014000300033 |
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| Ferreira,M.P.; Alievi,M.M.; Beck,C.A.C.; Dal-Bó,I.S.; Gonzalez,P.C.; Nóbrega,F.S.; Silva,L.M.; Stédile,R.; Scherer,S.; Rocha,J.P.V.; Silva Filho,A.P.F.; Svierk,B.; Costa,G.. |
| Cats with orthopedic conditions are a prominent part of the clinical work of veterinary. Conditions such as comminuted fractures, bone tumors and non-unions are often difficult to repair and may require the use of bone grafts for treatment. This study evaluated cortical bone allografts preserved in honey, frozen or lyophilized for correcting long bone defects created in the diaphysis of the right femur of domestic cats (n=24). In the control group (n=6), the defect was repaired using autogenous cortical bone graft. In the remaining animals (n=6/group), the defect was repaired with cortical bone allografts preserved in honey, frozen or lyophilized. Success of graft incorporation and length of time for consolidation were assessed through clinical,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Preservation; Bone; Animal; Orthopedic; Traumatology. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352012000200003 |
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| Zaghi Júnior,Lienine Luiz; Lopes,Ana Daniela; Cordeiro,Fábio Aparecido; Colla,Itaruã Machri; Bertéli,Míria Benetati Delgado; Valle,Juliana Silveira do; Linde,Giani Andrea; Colauto,Nelson Barros. |
| Abstract Agaricus subrufescens is a basidiomycete which is studied because of its medicinal and gastronomic importance; however, less attention has been paid to its preservation. This study aimed to evaluate the effect of sucrose addition to substrate and cryotube on the viability of Agaricus subrufescens cryopreserved at -20 °C and at -75 °C for one and two years. Zero, 10% or 20% sucrose was added to potato dextrose agar or wheat grain. The mycelia were cryopreserved in the absence of cryoprotectant or with sucrose solutions at 15%, 30% or 45%. After one or two years at -75 °C or at -20 °C, mycelia were thawed and evaluated about viability, initial time of growth, colony diameter and genomic stability. Cryopreservation at -20 °C is not effective to keep... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Preservation; Freeze; Cereal grain; Monosaccharide; Agaricus blazei. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822018000200370 |
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| Silva,José Roberto Viana; Brasil,Alline Ferreira; Santos,Regiane Rodrigues dos; Costa,Sônia Helena Furtado; Rodrigues,Ana Paula Ribeiro; Ferreira,Marcos Antônio Leal; Machado,Vanessa Porto; Figueiredo,José Ricardo de. |
| The present work has investigated the degeneration rate of goat primordial follicles in situ after preservation in PBS or TCM 199 at different temperatures and incubation times. For each animal the ovarian pair was divided into 19 fragments. One ovarian fragment was taken randomly and immediately fixed (control). The other 18 ovarian fragments were randomly distributed in tubes containing PBS or TCM 199 and stored at 4º, 20º or 39ºC for 4, 12 or 24h. The storage of ovarian fragments in PBS or TCM 199 at 20ºC for 12h and 24h or at 39ºC, in all incubation times tested, increased significantly the percentage of degenerated primordial follicles (P<0.05). In contrast, for both media tested the degeneration rate of primordial follicles preserved at 4ºC for up... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Primordial follicles; Degeneration; Goat; Preservation. |
| Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782003000500019 |
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| Medeiros,Rafael A. B. de; Barros,Zilmar M. P.; Carvalho,Carlos B. O. de; Coêlho,Antonio C. D.; Maciel,Maria I. S.; Azoubel,Patricia M.. |
| ABSTRACT The dual-stage sugar substitution technique (D3S) was used to induce sugar replacement in mango. It involved two stages, in which high-calorie sugars were partially removed from the fruit samples in the first stage and, in the second one, low-calorie sugar was incorporated into the mango. Ultrasonic waves can be applied in one or both stages and their use was also evaluated in this study. Results showed that submitting samples to ultrasonic waves (25 kHz) in both stages and their immersion in Stevia-based solution (250 or 500 g kg-1) in the second stage for 10, 20 and 30 min of processing gave higher water loss during the process, while greater solids gain could be achieved by applying ultrasound only in the first stage. Samples were also... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Carotenoids; Color; Mangifera indica; Phenolics; Preservation. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662019000100060 |
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| Cheret, Romuald; Chapleau, Nicolas; Delbarre Ladrat, Christine; Verrez-bagnis, Veronique; De Lamballerie, Marie. |
| High pressure is an innovative non-thermal food-preservation technology. We studied the effect of high-pressure treatment up-to 500 MPa for 5 min on physical characteristics of sea bass fillets after 0, 7, and 14 d of refrigerated storage.. Color results exhibited an increase of lightness and a slight change of hue, which might be imperceptible in cooked fish. High-pressure treatment induced a decrease of exudation and water-holding capacity Pressure treatment above 300 MPa provoked higher fish hardness after storage than in untreated sample, proving the ability of high pressure to improve textural, quality of chilled, stored fish fillet. These assessments were corroborated with microstructure observations. We showed that high-pressure treatment at 500 MPa... |
| Tipo: Text |
Palavras-chave: Preservation; Microstructure; Texture profile analysis; High pressure; Fish. |
| Ano: 2005 |
URL: http://archimer.ifremer.fr/doc/2005/publication-734.pdf |
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| Freitas,ES de; Soldá,A; Calegari,DL; Munaretto,FC; Dietrich,GF; Back,A. |
| Serum is widely used for the purpose of monitoring and diagnosis support for most of poultry diseases. In the case of the serum plate agglutination test (SPA), commonly used to detect antibodies for Salmonella Pullorum (SP), Mycoplasma gallisepticum (MG) and Mycoplasma synoviae (MS), serum cannot be frozen because it may result in false positive. Without freezing, serum can last only for a few days. In this experiment, glycerin was evaluated as a serum preservering agent. About 50 samples for each disease and analyzed by SPA test previously were separated. Glycerin was added to serum from commercial chickens, with and without antibodies for SP, MG and MS, in the proportion of 1:1 (serum:glycerin) and kept at refrigerated conditions (2 to 8 ºC). For four... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Seroagglutination; Glycerol; Preservation; Refrigeration; Shelf life. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2014000300015 |
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| Pinho,Eduardo Zambello de; Costa,Ciniro; Arrigoni,Mario De Beni; Silveira,Antonio Carlos; Padovani,Carlos Roberto; Pinho,Sheila Zambello de. |
| Cassava (Manihot esculenta Crantz), although native to Brazil, is still underutilized, especially when it comes to using its aerial part. In order to study the potential of the cassava plant for use as animal feed, the present work evaluated the characteristics of the aerial part of cassava when submitted to the processes of ensiling and haymaking. Treatments consisted of: aerial part of the plant ensiled without wilting (PAS); aerial part ensiled after wilting (PAE), and aerial part made into hay (PAF). Chemical analyses were run in order to evaluate the traits that determine the nutritional value of silage and hay. Wilting increased dry matter concentration from 25% to 27.7%, without changing the concentration of soluble carbohydrates (33.3 and 35.5% in... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Hydrocyanic acid; Nutritional composition; Preservation. |
| Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162004000400003 |
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| SUZUKI, Hiroshi; 鈴木, 宏志. |
| Attempts to freeze-dry spermatozoa are not new. Successful conception and full-term development using freeze-dried spermatozoa were reported in the cow and rabbit prior to 1960. However, these preliminary results have not been confirmed. Spermatozoa become defective in motility after freeze-drying and are unable to fertilize eggs both in vivo and in vitro. However, in 1998, freeze-drying of mammalian spermatozoa was demonstrated without loss of genetic or reproductive potential. Freeze-dried spermatozoa support normal development when injected directly into oocytes by means of an intracytoplasmic sperm injection (ICSI) technique. Recent investigations of freeze-dried sperm have focused on the factors affecting freeze-drying in spermatozoa in an effort to... |
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Palavras-chave: Spermatozoa; Freeze-drying; ICSI; Preservation. |
| Ano: 2006 |
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/4189 |
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| Syvaeranta, Jari; Martino, Aurelia; Kopp, Dorothee; Cereghino, Regis; Santoul, Frederic. |
| We tested the impacts of most common sample preservation methods used for aquatic sample materials on the stable isotope ratios of carbon and nitrogen in clams, a typical baseline indicator organism for many aquatic food web studies utilising stable isotope analysis (SIA). In addition to common chemical preservatives ethanol and formalin, we also assessed the potential impacts of freezing on delta C-13 and delta N-15 values and compared the preserved samples against freshly dried and analysed samples. All preservation methods, including freezing, had significant impacts on delta C-13 and delta N-15 values and the effects in general were greater on the carbon isotope values (1.3-2.2aEuro degrees difference) than on the nitrogen isotope values (0.9-1.0aEuro... |
| Tipo: Text |
Palavras-chave: Formalin; Freezing; Ethanol; Preservation; Stable isotope analysis. |
| Ano: 2011 |
URL: http://archimer.ifremer.fr/doc/00021/13192/10271.pdf |
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| Registros recuperados: 44 | |
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