Modified Atmospheres
Mostrando 1-12 de 22 artigos, teses e dissertações.
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1. Quality and functional properties of ‘Tupy’ blackberry stored in modified atmosphere conditions
Resumo O objetivo deste trabalho foi avaliar o efeito da temperatura de armazenamento, em atmosfera modificada (AM) passiva, e da composição atmosférica em AM ativa sobre a manutenção da qualidade, do teor de compostos fenólicos totais (CFT) e da atividade antioxidante total (AAT; métodos DPPH e ABTS) de amoras-preta ‘Tupy’. Foram conduzidos dois
Rev. Bras. Frutic.. Publicado em: 24/01/2019
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2. Survival of Salmonella spp. in minced meat packaged under vacuum and modified atmosphere
Abstract The effect of different modified atmosphere packaging regimes on the behavior of Salmonella spp. on minced meat was studied. Minced meat was experimentally contaminated with a Salmonella spp. cocktail (S. Enteritidis, S. Typhimurium, S. Infantis and S. Arizonae), packaged under vacuum or modified atmosphere with initial headspaces containing 20%O2/5
Braz. J. Microbiol.. Publicado em: 2018-09
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3. Estudo proteômico do efeito da atmosfera modificada na estabilidade da cor e na vida útil da carne suína acondicionada em embalagens de transporte tipo masterpack sob refrigeração / Proteomics study of the effect of modified atmosphere on colour estability and shelf life of pork meat wrapped in masterpack transport packages under refrigeration
The aim of this work was to study the effect of modified atmosphere associated to "masterpack" transport packages in the shelf-life of refrigerated pork meat. Microbiological, physical-chemical, biochemical and visual analyses were made. Pork loin (Longissimus dorsi) cuts placed in trays of expanded polystyrene, covered with poly(vinyl chloride) films were u
Publicado em: 2009
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4. Anatomic and physiological characterization and conservation of minimally processed carrots / Caracterização anatômico-fisiológica e conservação de cenoura minimamente processada
The objective of this study was to characterize the dehydration, white blush and histological location of suberin, lignin and phenolic compounds and assess their contribution to superficial white blush in baby carrots. The effects were assessed of the controlled atmospheres consisting of 2 % O2 + 15 % CO2, 5 % O2 + 5 % CO2 and 10 % O2 + 10 % CO2, all with N2
Publicado em: 2008
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5. Microbial, physicochemical and sensory profiles of refrigerated tilapias (Oreochromis niloticus) filets packaged under modified atmospheres / Características microbiológicas, físico-químicas e sensoriais de filés de tilápias (Oreochromis niloticus) conservados em atmosferas modificadas sob refrigeração
Estudou-se o efeito de diferentes atmosferas (vácuo, 100% CO + vácuo, 1% CO + 99% CO2) sobre a qualidade microbiológica, química, cor objetiva no sitema CIELab e sensorial de filés de tilápias (Oreochromis niloticus) estocados a 2 1 C. Os resultados foram contrastados com aqueles de filés embalados em ar atmosférico (controle). A análise microbioló
Publicado em: 2006
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6. Qualidade pós-colheita do mamão (Carica papaya) cv. Golden armazenado sob atmosferas modificadas / Post-harvesting quality of the papaya (Carica papaya) cv. Golden maintained under modified atmospheres
O objetivo do trabalho foi estudar as alterações físicas e químicas na qualidade pós-colheita dos frutos de mamão cultivar Golden armazenados a baixas temperaturas, em atmosfera modificada, com e sem absorção de etileno. Os tratamentos foram dispostos da seguinte forma: grupos de 6 frutos foram embalados em sacos de polietileno de baixa densidade, co
Publicado em: 2006
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7. Surface modification of cellulose fibres
Several approaches to the modification of cellulose fibres are described, namely: (i) physical treatments such as corona or plasma treatments under different atmospheres; (ii) grafting with hydrophobic molecules using well-known sizing compounds; (iii) grafting with bi-functional molecules, leaving one of the functions available for further exploitation; and
Polímeros. Publicado em: 2005-06
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8. Caracterização física, química, sensorial e nutricional de batatas minimamente processadas
A batata é a hortaliça de maior importância econômica no Brasil, sendo comercializada quase exclusivamente in natura. O processamento mínimo desta hortaliça tem-se revelado alternativa viável para sua industrialização, atendendo à demanda por produtos frescos, saudáveis e práticos ao mesmo tempo. O objetivo deste trabalho foi avaliar os efeitos d
Publicado em: 2005
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9. Characterization and thermal behavior of polymer-modified asphalt
A styrene-butadiene-styrene modified asphalt cement was characterized by infrared, differential scanning calorimetry, thermogravimetric analysis and empirical tests such as ring and ball softening point, penetration and elastic recovery. After aging in the rolling thin-film oven, the polymer-modified asphalt presented structural changes relating to oxidation
Materials Research. Publicado em: 2004-12
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10. Study of the stability of sliced cooked ham in modified atmosphere. / Estudo da estabilidade de presunto cozido fatiado em atmosfera modificada.
The purpose of this study was to evaluate the efficiency of packaging systems with modified atmosphere to preserve the quality of sliced cooked ham. Thus the quality stability of the product at 4 +/_:t 1°C, packed in a gas barrier package with three kinds of modified atmosphere (100% CO2, 60% CO2/40% N2 and 25% CO2 I 75% N2), was studied. The shelf-life of
Publicado em: 2004
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11. Influence of Modified Atmosphere Storage on Aflatoxin Production in High Moisture Corn
Samples of freshly harvested corn and remoistened corn were inoculated with Aspergillus flavus and stored for 4 weeks at about 27 C in air and three modified atmospheres. Aflatoxins and fat acidity were determined weekly. Corn stored in the modified atmospheres did not accumulate over 15 μg of aflatoxin B1 per kg and 20 μg of total aflatoxins per kg. Corn
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12. Survival of Aspergillus flavus and Fusarium moniliforme in High-Moisture Corn Stored Under Modified Atmospheres
Freshly harvested high-moisture corn with 29.4% moisture and corn remoistened to 19.6% moisture were inoculated with Aspergillus flavus Link ex Fr. and stored for 4 weeks at about 27 C in air (0.03% CO2, 21% O2, and 78% N2) and three modified atmospheres: (i) 99.7% N2 and 0.3% O2; (ii) 61.7% CO2, 8.7% O2, and 29.6% N2; and (iii) 13.5% CO2, 0.5% O2, and 84.8%