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| Registros recuperados: 3.898 | |
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| SOUSA,Ana Karolinne Anastacio de; FOGAÇA,Fabíola Helena dos Santos; ARAUJO,Thais Danyelle Santos; CASTRO,Karina Neoob de Carvalho; PEREIRA,Alitiene Moura Lemos; CANUTO,Kirley Marques; BRITO,Edy Sousa de; MAI,Mônica Giacometti; MAGALHÃES,João Avelar de. |
| ABSTRACT We investigated the effect of Alpinia zerumbet essential oil on the quality and shelf life of tambaqui (Colossoma macropomum) fillets stored under refrigeration (10.0 ± 0.5 °C) for 14 days. The treatments were A. zerumbet essential oil at 0.75% v v-1 (AEO 0.75%), A. zerumbet essential oil at 1.5% v v-1 (AEO 1.5%) and a control (no essential oil). The sample quality and shelf life were determined by the total psychrotrophic count (TPC) and chemical parameters (pH, total volatile basic nitrogen, centesimal composition and thiobarbituric acid reactive substances - TBARS) at zero, seven and 14 days of storage time. The TPC decreased significantly (p < 0.05) with an A. zerumbetessential oil level of 1.5% until seven days of storage. The... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Antioxidant; Psychrotrophic count; Quality; Fish storage. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672019000200152 |
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| Dias, Thaís Gabrielle; Vilas Boas, Ana Carolina; Junqueira, Maria Beatriz Affonso; Lima, Luiz Carlos de Oliveira. |
| UV-C radiation is a food preservation method aimed to extend the life of the product, inactivate microorganisms, and stimulate the synthesis of phenolic compounds. This study aimed to physicochemically characterize and evaluate the antioxidant activity and phenolic content of ‘Gala’ apples subjected to different UV-C radiation doses.The fruits were harvested, sanitized, selected and inserted into a UV-C radiation chamber, and different radiation doses were applied as follows:0 KJ m-2 (0 min.), 0.68 KJ m-2 (2 minutes),2.73 KJ m-2 (4 minutes), and 4.10 KJ m-2 (6 minutes). The apples were stored for 120 days at 5 ± 1°C and analyzed after 0, 30, 60, 90, and 120 days of storage. Radiation doses had no influence on parameters, such as weight loss, firmness and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Malus sp.; Preservation; Quality; Bioactive compounds. |
| Ano: 2017 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/30979 |
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| Nery, Marcela Carlota; Rocha, Adriana de Souza; Pinho, Édila Vilela de Resende Von; Santos, Heloisa Oliveira dos; Fialho, Cintia Maria Teixeira; Nery, Fernanda Carlota. |
| The seeds of a sesame crop contain approximately 50% oil content, one of the main reasons for their cultivation. However, information regarding methodologies for the assessment of quality seeds of this culture are scarce. Therefore, the objective of this study was to adapt the methods of accelerated ageing tests for sesame seeds and investigate changes in the behaviour of isoenzymes. The physiological characterization of the seeds and electrophoretic analysis of the isoenzymes superoxide dismutase, esterase, catalase, alcohol dehydrogenase, malate dehydrogenase and isocitrate lyase were also performed. For the accelerated ageing test, the seeds were subjected to the traditional method, with a saturated NaCl solution, at ageing times of 0, 24, 48, 72, and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: 5.01.00.00-9 5.01.03.00-8 enzymes; Oilseed; Vigour; Quality; Sesamum indicum. Produção e tecnologia de sementes. |
| Ano: 2018 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/39449 |
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| Biaggioni, Marco Antônio Martin; UNESP - Botucatu; Lopes, Ana Beatriz de Castro; UNESP - Botucatu; Jasper, Samir Paulo; UNESP - Botucatu; Berto, Dirlei Antonio; UNESP - Botucatu; Gonçalves, Elisa Vidal; UNESP-Botucatu. |
| Visando estabelecer a contribuição dos parâmetros físicos na qualidade final da silagem de grãos úmidos de milho, foi conduzido experimento, no interior de câmara climatizada, simulando cinco condições de temperatura ambiente (5°C 24h-1 por dia; 25°C 24h-1 por dia; 40°C 24h-1 por dia; 20°C 16h-1 por dia + 5°C 8h-1 por dia; 30°C 16h-1 por dia + 20°C 8h-1 por dia) e duas condições de pressão no interior dos tambores de armazenagem (com e sem pressão interna). Para se determinar os efeitos sobre o grau de disponibilidade do amido na silagem pronta, procedeu-se a análises para avaliar a qualidade final da silagem (teor de umidade, pH, ácidos orgânicos, amido total e granulometria). O delineamento... |
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Palavras-chave: 5.01.00.00-9 Agronomia silagem; Qualidade; Temperatura; Pressão silage; Quality; Temperature; Pressure. |
| Ano: 2009 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/325 |
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| Nery, Marcela Carlota; Rocha, Adriana de Souza; Pinho, Édila Vilela de Resende Von; Santos, Heloisa Oliveira dos; Fialho, Cintia Maria Teixeira; Nery, Fernanda Carlota. |
| The seeds of a sesame crop contain approximately 50% oil content, one of the main reasons for their cultivation. However, information regarding methodologies for the assessment of quality seeds of this culture are scarce. Therefore, the objective of this study was to adapt the methods of accelerated ageing tests for sesame seeds and investigate changes in the behaviour of isoenzymes. The physiological characterization of the seeds and electrophoretic analysis of the isoenzymes superoxide dismutase, esterase, catalase, alcohol dehydrogenase, malate dehydrogenase and isocitrate lyase were also performed. For the accelerated ageing test, the seeds were subjected to the traditional method, with a saturated NaCl solution, at ageing times of 0, 24, 48, 72, and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Enzymes; Oilseed; Vigour; Quality; Sesamum indicum.; Produção e tecnologia de sementes. |
| Ano: 2018 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/39449 |
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| Marques, Odair José; UEM; Vidigal Filho, Pedro Soares; UEM; Dalpasquale, Valdecir Antoninho; UEM; Scapim, Carlos Alberto; UEM; Pricinotto, Luiz Fernando; UEM; Machinski Júnior, Miguel; UEM. |
| O objetivo deste trabalho foi avaliar a incidência de fungos dos gêneros Aspergillus, Fusarium e Penicillium e as contaminações com micotoxinas em grãos de cinco híbridos comerciais de milho em função da umidade de colheita. O trabalho foi conduzido em Astorga, Estado do Paraná, durante o período da ‘safrinha’ de 2007 e da safra de ‘verão’ de 2007/2008. As amostras de grãos, colhidas em cinco épocas distintas e em cinco repetições, foram submetidas à determinação de umidade pelo método da estufa a 103 ± 1ºC por 72h. O teste de sanidade Blotter test e a quantificação micotoxinas (método da cromatografia em camada delgada) foram efetuados, utilizando-se um delineamento inteiramente casualizado. Os resultados obtidos foram submetidos à análise de... |
| Tipo: Pesquisa Empírica de Campo |
Palavras-chave: 5.01.03.04-0 Produção de Mudas Zea mays L.; Pós-colheita; Qualidade; Aflatoxinas; Zearalenona Fitotecnia Zea mays L.; Post-harvest; Quality; Aflatoxins; Zearalenone. |
| Ano: 2009 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/5690 |
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| Neves, Leandro Camargo; Universidade Federal de Roraima; Campos, Andre José de; Universidade Federal de Roraima; Prill, Marcos André de Souza; Universidade Federal de Roraima; Roberto, Sérgio Ruffo; Universidade Estadual de Londrina. |
| The study was performed to identify the effect of delayed storage on the control of woolliness and leatheriness during cold storage of the late peach cultivars grown in Brazil. The fruits were harvested at the mature-green stage. All of the cultivars were exposed to temperatures of 20 ± 0.5ºC and 75 ± 3% of R.H. in a cold room for 0, 24, or 48 hours. Afterwards, the fruits were kept at 0 ± 0.5ºC and 92 ± 3% of R.H. for 28 days. The yellow pulp peaches, regardless of the length of delayed storage, did not present any symptoms of woolliness or leatheriness. The white pulp peaches not submitted to delayed storage developed either one or more of the other physiological disorders. Due to their lower level of pulp firmness, the control fruits of ‘Chimarrita’ and... |
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Palavras-chave: Prunus sp.; Chilling injury; Physiologic disturbances; Quality; Postharvest. |
| Ano: 2013 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/13347 |
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| Marques, Tadeu Alcides; Neves, Larissa Carolina Gonçalves; Rampazo, Erick Malheiros; Deltrejo Junior, Elvis Lima; Souza, Fernando Caetano; Marques, Patricia Angelica Alves. |
| In the specific case of sugarcane, producers in Brazil are currently paid by the content of total recoverable sugars (TRS) in the raw material when it reaches the industry, according to CONSECANA: TRS = 9.6316 *PC +9.15 * RSS, where PC is the Pol in cane (apparent sucrose) and RSS are reducing sugars in sugarcane (glucose + fructose). The objective of the project was to propose changes in the procedures used to mathematically determine the TRS, estimating the calorific value of moist cake and weight of moist cake. The final model is then proposed: TRS = 25.9892 + 0.02172*CVmc*WMC+0.536*WMC – 4.14*CVmc + + 4.8158*PC + 4.575*RSS. Thus we obtain the TRS calculated according to the calorific value of moist cake (CVmc), weight of moist cake (WMC), Pol cane (PC)... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: 5.03.03.00 7 Saccharum; Quality; Bioenergy Engenharia de Processamento de Produtos Agrícolas. |
| Ano: 2015 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/19065 |
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| Souza, Edison Antonio de; Universidade Estadual Paulista “Júlio de Mesquista Filho"; Inoue, Hemily Tiemi; Universidade Estadual Paulista “Júlio de Mesquista Filho"; Fernandes Júnior, Ary; Universidade Estadual Paulista “Júlio de Mesquista Filho"; Veiga, Nabor; Universidade Estadual Paulista “Júlio de Mesquista Filho"; Orsi, Ricardo de Oliveira; UNESP - Botucat - SP. |
| The antibacterial activity of propolis produced throughout the year by different methods of collection (‘intelligent’ collector of propolis - ICP; plastic screen - PC; conventional scraping - CS) on Staphylococcos aureus and Escherichia coli is investigated. Fifteen beehives (five per collector) of Africanized Apis mellifera were used. Monthly produced propolis, with the same collection technique, was mixed for the preparation of the extract. The ethanol extract of propolis (EEP) was prepared at the ratio of 30% (30 g of propolis, completing the volume for 100 mL with ethanol 70%). Two microorganisms, a positive bacterium Gram Staphylococcus aureus and a negative bacterium Gram Escherichia coli, through the methodology of diffusion in agar, were used for... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Apiculture; Biological properties; Quality; Bacteria. |
| Ano: 2014 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/21436 |
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| Costa, Renê Ferreira; Pires, Daniel Ananias de Assis; Moura, Marielly Maria Almeida; Sales, Eleuza Clarete Junqueira de; Rodrigues, José Avelino Santos; Rigueira, João Paulo Sampaio. |
| The objective was to assess agronomic characteristics of sorghum genotypes and nutritional values of produced silage. A total of 15 sorghum genotypes were used. Planting was carried out through a randomized-block design with three replications per genotype, totaling forty-five (45) plots. Agronomic and nutritional characteristics, besides the quality of the silage, were assessed. There were differences between genotypes for all characteristics analyzed, with the exception of levels of acid detergent unavailable nitrogen (ADUN), acid detergent unavailable protein (ADUP) and water activity (aw). The assessment of the parameters, except for genotypes 1016013, 1016025, 1016037, 1016039, Volumax and BRS 610, which presented protein level below 7%, showed that... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: ZOOTECNIA; NUTRIÇÃO E FORRAGICULTURA digestibility; Production; Quality. |
| Ano: 2016 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/29567 |
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| AL-Dairi, Mai; Pathare, Pankaj B. |
| Quality deterioration in tomato along the supply chain due to postharvest losses has become a continual challenge in Middle East countries. The aim of this study is to determine the changes in tomato quality parameters during storage. Fresh tomatoes were purchased from the Central Market of Fruits and Vegetables and stored at 10oC and 22oC for 12 days to assess color, weight loss, firmness and TSS parameters. Statistical analysis like (R2, X2, SE and RMSE) and ANOVA were performed using SPSS software. Experimental results showed a high significant impact (p < 0.05) in tomato quality parameters such as color, firmness and weight loss stored at 22oC. Storage at 22oC had a rapid alteration of a* and L* parameters to the darker region. A slow increase... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Color; Firmness; Kinetic model; Quality; Tomato. |
| Ano: 2021 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/6423 |
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| Kaur, Kulwinder; Kumar, Satish; Alam, Mohammad Shafiq. |
| The study on osmotic pretreatment of oyster mushrooms was carried out in order to remove the moisture prior to further mechanical drying. Three salt concentration level (10, 15 and 20 g/100 g), two temperature levels of osmotic solution (30 and 45°C) and constant solution to mushroom ratio of 10 (w/v) were selected and the observations on water loss and solid gain were taken at an interval of 30 min up to 300 min. The osmotically pretreated samples were further dried up to its equilibrium moisture content in a tray drier at 60°C and experimental data were fitted successfully using Page and Henderson & Pabis model. The osmo-convective dehydrated samples were evaluated for its quality parameters i.e. color (L, a, b, ∆E, C* and h°), rehydration ratio... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Oyster mushrooms; Osmotic dehydration; Water loss; Solid gain; Drying; Quality. |
| Ano: 2014 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/2831 |
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| Taghinezhad, Ebrahim; Rasooli Sharabiani, Vali. |
| Most of the world's consumers have used the natural coatings instead of chemical coatings. In this research, some quality properties of Thomson orange were evaluated using Chitosan edible coating (at concentrations of 0.5, 1 and 2%) and chemical coating of fungicide (Ortho Phenyl Phenol) as compared to uncoated samples during storage for three months. Fruit were maintained in cold storage at 6 °C temperature and 85-90% relative humidity, then pH, total soluble solid (TSS) of orange juice and percentage of fruit weight loss were measured during storage every month. The results showed that weight loss of fruit with 2% chitosan coating was lower than other treatments. Also this treatment had high resistance against fungal attacks due to high values of pH, so... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Chitosan; Citrus; Fungicide; Quality; Storage. |
| Ano: 2018 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/4189 |
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| Adamu, Hauwa Dauda. |
| Quality characteristics of Hot pepper powder in relation to drying temperatures and milling regimes was determined using hot air oven at temperatures (80,85,90 and 95 oC) and milled using attrition mill for (5 and 10 minutes) the quality parameter determined are Particle size distribution using sieve method, bulk density(pack and loose method), colour using spectrophotometry and CIELab method, pungency using spectrophotometric method, Reconstitution index using and sensory attributes using Seven Hedonic scale, the percentage particle size distribution 1.40mm aperture size ranged from 1.39-0.31 and for 0.425 mm size ranges from 2.55-36, 0.210mm size ranges from 50.25-79.87, 0.150 size ranges from 2-27 and for 0.090 ranges from 0.016-9.8, pack bulk density... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Hot pepper; Quality; Milling; Temperatures.. |
| Ano: 2021 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/6955 |
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| Adekola, Kehinde Adedeji. |
| The extrusion and extrudate properties measured include expansion indices (or puff indices), bulk density, residence time, solid density, moisture content, maximum stress, water solubility index (WSI), water absorption index (WAI), extruder output, crispness and color. The ranges of the three variables considered were 100 - 160°C for barrel temperature, 100 - 200rpm for screw speed, and 15 - 25% for feed moisture content (w.b.). The density of extrudate measured varied between 176kg/m3 and 1100kg/m3 for the extrusion variables considered. The moisture content of the dry extrudate is between 6% and 7.5% with the mean value of 6.75%. Using the experimental results, predictive equations were developed to relate the influence of processing parameters on the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Processing parameters; Food extrusion; Extrudate; Quality; Sorghum grain. |
| Ano: 2015 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3057 |
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| Amer Eissa, Ayman Hafiz; Albaloushi, Nabil S.; Azam, Mostafa M.. |
| Mechanical damage of agriculture produce is a major problem in the harvest and post-harvest chain. This damage could cause huge economic loss. In addition, it could lead to serious food safety concerns. Several cases of foodborne illness have been traced to poor or unsanitary postharvest practices. Escherichia coli (E. coli) O157:H7, Salmonella, Shigella, Listeria, Cryptosporidium, Hepatitis, and Cyclospora are among the diseases and disease-causing organisms that have been associated with fresh fruits and vegetables. Measurements of mechanical characteristics of agricultural products under different static and dynamic loads should help in predicting the type and magnitude of mechanical injuries which will help in minimizing losses and improve the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Agricultural Systems Engineering Vibration Analysis; Crisis Transport; Quality; Damage and Food safety.. |
| Ano: 2013 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/2393 |
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| Registros recuperados: 3.898 | |
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