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A benthic Si mass balance on the Congo margin: Origin of the 4000 m DSi anomaly and implications for the transfer of Si from land to ocean ArchiMer
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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A prática da concentração do latex. Infoteca-e
WISNIEWSKI, A.; ROHNELT, R. C..
1947
Tipo: Séries anteriores (INFOTECA-E) Palavras-chave: Latex; Concentração; Preservação; Cremagem; Análise; Química; Tecnologia; Concentration; Preservation; Cremation; Analysis; Chemistry; Technology.
Ano: 1947 URL: http://www.infoteca.cnptia.embrapa.br/handle/doc/387999
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A QUESTÃO AMBIENTAL: FLORESTAS E BIODIVERSIDADE Ciências Agrárias
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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Application of active films with natural extract for beef hamburger preservation Ciência Rural
Lagos,Maria Jeannine Bonilla; Sobral,Paulo José do Amaral.
ABSTRACT: Edible chitosan-based films, in pure form (CH100), or blended with gelatin (GEL50:CH50), with and without boldo extract (B) were prepared. The oxygen permeability of the films, as well as color changes and antioxidant and antimicrobial activities on beef hamburgers samples were evaluated. CH100+B film exhibited optimal oxygen barrier properties (6.40±0.170cc-mL/[m²-day]), and this value was significantly increased in blended films (GEL50:CH50+B = 12.99±1.50cc-mL/[m²-day]) (P<0.05). All films provoked color changes in hamburger samples during storage, and the samples covered with CH100+B film showed a lower brightness and a higher redness. All films effectively protected beef hamburger from lipid oxidation, and boldo extract incorporation in...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Beef hamburger; Active-edible films; Natural extract; Antimicrobial activity; Lipid oxidation; Preservation.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782019000100752
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Biodiversity: the natural patrimony being lost. Repositório Alice
RODRIGUES, G. S..
bitstream/item/204709/1/1999PL-Rodrigues-Biodiversity-3673.pdf
Tipo: Resumo em anais de congresso (ALICE) Palavras-chave: Biological diversity; Preservation; Conservation; Impact; Environment; Measurement.
Ano: 1999 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/13139
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Biotécnicas da reprodução animal aplicadas à conservação de cervídeos. Infoteca-e
ZÚCCARI, C. E. S. N.; SERENO, J. R. B..
The present work aimed to present a literature research about two deer species - Blastocerus dichotomus (llliger, 1815) - Cervo-do-pantanal and Ozotocerus bezoarticus (Linnaeus, 1758) - Veado-campeiro, due to their importance in Central Brazil. The main aspects studied were: species biology, density and populational distribution; factors related to their decreased numbers; and the use of biotechniques of animal husbandry for propagation and conservation of deer, as environmental compensation. Using available data in the literature, it is possible to realize that depending on the region studied, both deer species showed population fluctuation in the past years. Apart local population density, both are part of the red data book on native Brazilian species of...
Tipo: Documentos (INFOTECA-E) Palavras-chave: Cervo; Reprodução animal; Densidade demográfica; Biologia animal; Preservação; Veado; Cervidae; Reproduction; Demography; Zoology; Preservation.
Ano: 2006 URL: http://www.infoteca.cnptia.embrapa.br/handle/doc/570264
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Capim buffel (Cenchrus ciliaris L.) preservacao ex-situ e avaliacao aprofundada. Repositório Alice
OLIVEIRA, M. C. de; SILVA, C. M. M. de S.; SOUZA, F.B. de..
Após a obtenção destes primeiros resultados, o BAG de plantas forrageiras da Embrapa Semi-Árido, assumiu o capim buffel como seu referencial, já tendo desenvolvido muitos trabalhos sobre esta forrageira, tanto sobre caracterização das cultivares e ecotipos como avaliaç ões agronômicas visando disponibilizar o máximo de informações para os pecuaristas da região.
Tipo: Capítulo em livro científico (ALICE) Palavras-chave: Capim buffel; Preservacao; Avaliacao; Cenchrus ciliaris; Buffel grass; Preservation; Evaluation; Produção animal; Pastagem; Animal production; Pasture.
Ano: 1999 URL: http://www.alice.cnptia.embrapa.br/handle/doc/133707
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Castanhais nativos de Marabá - PA: fatores de depredação e bases para a sua preservação. Infoteca-e
KITAMURA, P. C.; MÜLLER, C. H..
1984
Tipo: Documentos (INFOTECA-E) Palavras-chave: Castanha-do-brasil; Economia; Produção; Extrativismo; Produtividade; Preservação; Bertholletia excelsa; Marabá; Pará; Amazônia; Brasil; Brazil-nut; Economy; Production; Yield; Preservation.
Ano: 1984 URL: http://www.infoteca.cnptia.embrapa.br/handle/doc/381689
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Characterization of Bacteriocin like inhibitory substance produced by a new Strain Brevibacillus borstelensis AG1 Isolated from 'Marcha' BJM
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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Comparison of lyophilization, and freezing in honey as techniques to preserve cortical bone allografts used to repair experimental femoral defects in domestic adult cats Arq. Bras. Med. Vet. Zootec.
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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Conservação de polpa de cupuaçu (Theobroma grandiflorum, Schum) com o uso do frio. Repositório Alice
MIRANDA, R. de M..
Para estudar a conservacao do polpa do cupuacu ao frio, foram colhidos frutos que pesaram em media 474g. Apos a quebra dos frutos, a polpa foi armazenada a -18oC, por cerca de quatro meses. Apos esse periodo, foi processado o despolpamento mecanico e o envasamento em sacos de polietileno, com capacidade para 1kg, em caminhados, em tres lotes, a tres umidades de frio (8oC, -2oC e -12oC. Os tres lotes sofreram analises periodicas para determinacao dos parametros fisico-quimicos: pH, acidez, glicidios redutores, glicidios nao-redutores, vitamina C e perda de peso. Analises microbiologicas tambem foram realizadas para determinacao de microrganismos, aludidos na Portaria n.1 de 18/01/87, do Ministerio da Saude. Dentre as tres temperaturas, a que melhores...
Tipo: Tese/dissertação (ALICE) Palavras-chave: Brasil; Amazonas; Manaus; Fruit pulps; Preservation; Armazenamento; Cupuaçu; Fruto; Polpa; Preservação de Alimento; Tecnologia de Alimento; Theobroma Grandiflorum; Food technology; Storage.
Ano: 1989 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/667000
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Conservation des laminaires apres sechage a tres hautes temperatures. ArchiMer
Perez, René.
Laminaria digitata is the only brown alga used in the French alginate industry. Air-dried and flash-dried (in a current of air at 200 to 850 degree C) algae were compared. Quality was assessed viscometrically and the results expressed graphically. Quality after drying and keeping properties were found better in flash-dried algae and the method was shown to be the cheapest of methods currently available.
Tipo: Text Palavras-chave: Methods; High temperatures; Preservation; Laminaria digitata.
Ano: 1972 URL: http://archimer.ifremer.fr/doc/1972/publication-2059.pdf
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Considerações sobre a coleta de amostras para exame fitopatológico. Infoteca-e
FREIRE, F. das C. de O..
1986
Tipo: Documentos (INFOTECA-E) Palavras-chave: Planta; Doença; Diagnóstico; Material vegetal; Coleta; Preservação; Amostra de solo; Plant; Disease; Diagnose; Vetable matter; Collection; Preservation; Soil Sample.
Ano: 1986 URL: http://www.infoteca.cnptia.embrapa.br/handle/doc/380968
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Cryopreservation at -75 °C of Agaricus subrufescens on wheat grains with sucrose BJM
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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Degeneration rate of goat primordial follicles maintained in TCM 199 or PBS at different temperatures and incubation times Ciência Rural
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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Desenvolvimento de metodologia em SIG para zoneamento ecológico: estudo de caso da Bacia Ribeirão do Gama-DF. Infoteca-e
CARVALHO, A. P. F. de; CARVALHO JÚNIOR, O. A. de; LEITE, L. L.; GUIMARÃES, R. F.; MARTINS, E. de S..
ABSTRACT: The permanent preservation areas were created to protect the environment, decreasing processes as erosion often caused by anthropic interferences. The Brazilian Forest Law stablished criteria to the delimitation of these areas. An area zoning presents special areas where permanent preservation areas are inclued. This way, in the present paper was performed the mapping of the permanent preservation areas in order to accomplish the future zoning of the watershed called Basin of stream of Gama. According to the Federal Law, permanent preservation areas on this watershed were found along rivers margins and their streams and plateau's edges. The mapping of these areas was performed by means of the IDRISI software using to the delimitation of the...
Tipo: Documentos (INFOTECA-E) Palavras-chave: Meio ambiente; Caracterização; Brasil; Preservação; Zoneamento ecológico; Recurso natural; Sistema de informação geográfica; Environments; Preservation; Natural resources; Ecology; Geographic information systems; Brazil.
Ano: 2001 URL: http://www.infoteca.cnptia.embrapa.br/handle/doc/568008
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Deshidratador solar para productos agrícolas. Colegio de Postgraduados
Hernández Santana, Crescencio Alejandro.
En México un gran porcentaje de la comercialización de frutas y hortalizas se realiza en fresco. Aunque por un lado, es el tipo de producto preferido por muchos consumidores, por otro, existen excedentes que saturan el mercado, bajan los precios alarmantemente y se incrementan las perdidas. No existe la capacidad instalada en infraestructura para conservar estos productos, aún en fresco. Por lo que este trabajo propone el desarrollo de un deshidratador para productos vegetales, que permitirá alargar su vida de anaquel y transformarlo en otro producto de consumo. La culminación de este proyecto, coadyuvará a mejorar la calidad de vida y arraigo social de los pobladores en regiones de origen. Se hicieron pruebas de secado con el nopal (Opuntia ficus indica),...
Palavras-chave: Energías renovables; Deshidratación; Conservación; Vegetales; Frutas; Renewable energy; Dehydration; Preservation; Vegetables; Fruits; Maestría Tecnológica; Agroindustria.
Ano: 2010 URL: http://hdl.handle.net/10521/322
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Dual-stage sugar substitution in Tommy Atkins mango AGRIAMBI
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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Effect of 0.9% saline solution and phosphate buffer saline at different temperatures and incubation times on the morphology of goat preantral follicles Braz. J. Vet. Res. Anim. Sci.
Santos,Regiane Rodrigues dos; Silva,José Roberto Viana; Costa,Sonia Helena Furtado; Rodrigues,Ana Paula Ribeiro; Lôbo,Raimundo Nonato Braga; Figueiredo,José Ricardo de.
The present work investigated the efficiency of 0.9% saline solution and Phosphate Buffered Saline (PBS) in the preservation of goat preantral follicles in situ at different temperatures and incubation times. The ovarian pair of each animal was divided into 19 fragments. One ovarian fragment was taken randomly and fixed (control). The other 18 fragments were randomly distributed in tubes containing 0.9% saline solution or PBS at 4, 20 or 39 ºC for 4, 12 or 24 h. A total of 5,921 preantral follicles were examined. The quality of preantral follicles was evaluated by classical histology. The storage of ovarian fragments in 0.9% saline solution or PBS at 4 ºC did not reduce significantly the percentage of morphologically normal follicles when compared with the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Goat; Preantral follicle; Preservation; 0.9% saline solution; PBS.
Ano: 2002 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-95962002000500007
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Effect of lactic acid bacteria on extention of shelf life and growth of Listeria monocytogenes in beef steaks stored in CO2- rich atmosphere BJM
Djenane,Djamel; Martínez,Luis; Blanco,Domingo; Yangüela,Javier; Beltrán,José A.; Roncalés,Pedro.
Beef steaks were inoculated with one or other of two protective strains of lactic acid bacteria (bacteriocinogenic Lactobacillus sakei CTC 372 or the uncharacterized Lactobacillus CTC 711), and stored under modified atmospheres (20-40% CO2). Inoculation of meat with LAB inhibited growth of the spoilage bacteria. Neither CO2 in the pack atmosphere or inoculation with protective strains, nor a combination of both, affected formation of metmyoglobin or the development of off-odours. The formation of metmyoglobin in meat pigments and the sensory odour scores were compatible to those of fresh meat which had not undergone either oxidative deterioration or microbial spoilage. Listeria monocytogenes was inhibited in broth by meat surface microbiota containing the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Fresh meat; Modified atmosphere; Preservation; Lactic acid bacteria; Spoilage; Listeria monocytogenes.
Ano: 2005 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822005000400018
Registros recuperados: 62
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