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| Registros recuperados: 41 | |
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| Ferreira,Marcos David; Franco,André Toshiro Oshima; Kasper,Ricardo Freitas; Ferraz,Antonio Carlos Oliveira; Honório,Sylvio Luiz; Tavares,Marcelo. |
| Losses on tomato business chain start at harvest, a two-months period. At the beginning of the harvest, fruits concentrate at the basal part of the plant, then in the middle, and finally at the top, and undergo changes in diameter and maturity indexes as harvest progresses. The aim of this work was to evaluate the impact of handling at three different periods: (I) 15 days, (II) 30 days, and (III) 45 days after the beginning of harvest. Tomatoes were ordinarily grown and harvested in to bamboo baskets, and transferred to plastics boxes. Fruits were classified according to ripening stage and diameter, and evaluated for mechanical damage and external defects caused by harvesting procedures. The time required for the harvest operation was measured; damage to... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lycopersicon esculentum; Losses; Post-harvest; Mechanical injury. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162005000500006 |
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| Pimentel,Rodrigo Meirelles de Azevedo; Walder,Julio Marcos Melges. |
| Papaya is a fragile, perishable fruit, highly accepted worldwide. To keep the quality of papaya from harvest to the consumers, conservation techniques are often used; among them is the application of gamma irradiation. The objective of this work was to evaluate gamma irradiation in papayas harvested at three degrees of maturation, in order to increase shelf life. Papayas were harvested in perfect quality conditions and selected by skin coloration into three distinct degrees of maturation: maturation 0, or beginning of yellow coloration; maturation 1, yellow stripes more developed, and maturation 2, one third yellow. Half of them were irradiated with 0.75 kGy, while the other half became control treatment. They were analyzed in four periods of conservation,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Post-harvest; Food conservation; Gamma irradiation; Tropical fruits; Shelf life. |
| Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162004000200004 |
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| Fonseca,H.; Gallo,C.R.; Calori-Domingues,M.A.; Gloria,E.M.; Approbatto,P.J.; Fonseca,E.L.; Zambello,I.V.. |
| The present experiment aimed to evaluate the effect of sodium ortho-phenylphenate (SOP) application to in-shell moist peanuts for the control of aflatoxin production. Previous studies showed the need to improve the SOP solution distribution on peanut pods to evaluate the product. Thus, in this experiment the place of the spray system was the bag filler pipe of the pre-cleaning machine in the warehouse. In the 1989 rainy season two lots of 120 bags of in-shell moist peanuts were sprayed with 0.5 and 1% SOP solutions and aflatoxin production was not controlled. In the dry season of 1989 and in the rainy season of 1990, in-shell moist peanuts were sprayed with 5% SOP solution. The coverage of pods with the solution was efficient, allowing a uniform... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Aflatoxins; Peanuts; Chemical control; Sodium ortho-phenylphenate; Post-harvest. |
| Ano: 1994 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90161994000200025 |
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| Da Silva Dias,Nildo; Dantas de Morais,Patricia Lígia; Abrantes Sarmento,José Darcio; Nogueira de Sousa Neto,Osvaldo; Palácio,Vilauba Sobreiro; de Freitas,Jair José Rabelo. |
| Abstract In Mossoró-RN, which is part of the semi-arid region of Brazil, a large part of the country’s melon production is concentrated, whose great potential is currently limited by water quality due to salt concentration. Therefore, the objective of this work was to investigate the use of saline nutritive solutions in the irrigation of greenhouse melon (Cucumis melo L. cv. Néctar) culture in coconut fiber. The experiment was carried out using a randomized block design with a 5 x 2 factorial arrangement, with four replications, where the treatments consisted of nutritive solutions with five salinity levels (1.25 - control, 1.43, 1.86; 2.96 and 4.86 dS m-1) and for two different times to evaluate fruit quality parameters (at harvest and after 12 days of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fertigation; Post-harvest; Soilless cultivation; Storage; Substrate. |
| Ano: 2018 |
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-28122018000400517 |
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| Grzybowski, Camila Ribeiro de Souza; Silva, Rosemeire Carvalho da; Vieira, Elisa Serra Negra; Panobianco, Maristela. |
| The objective was to study the processing of Vernonanthura discolor seeds, evaluating their physical and physiological qualities and defining parameters for purity analysis and determine the weight of one thousand seeds. The seeds extracted from the infructescences were processed in a blower, testing combinations of openings of the calibration valve and the side air passage. After processing, the seeds went through water content determination, germination tests, first count of the germination test, purity analysis, weight of one thousand seeds and percentage of full seeds. Compared to the control, seeds processed in a regulated blower with the calibrator valve in position 10 plus three 360° turns of side air passage obtained an approximately three-fold... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Vassourão-preto; Pós-colheita; Análise de pureza; Peso de mil sementes Produção e Beneficiamento de Sementes 5.01.03.03-2 Vassourão-preto; Post-harvest; Purity analysis; Weight of one thousand seeds; Seeds blower; Germination. Produção e Beneficiamento de Sementes. |
| Ano: 2018 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/39574 |
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| Oliveira, Gabriel Henrique Horta; Instituto Federal de Brasília; Corrêa, Paulo Cesar; Universidade Federal de Viçosa; Botelho, Fernando Mendes; Universidade Federal de Mato Grosso; Goneli, André Luis Duarte; Universidade Federal da Grande Dourados; Afonso Júnior, Paulo Cesar; Embrapa Café; Campos, Sílvia Carvalho; EMBRAPA Agrosilvipastoril. |
| The effects of drying conditions on the shrinkage of Coffea Arabica L., cultivar Catuaí Vermelho, were studied. An exponential model derived from the kinetic model was used to describe the shrinkage kinetics. In addition, an equation was proposed to describe the relationship between the superficial areas and weights of the coffee berries. Coffee berries were dried at temperatures (T) of 35, 45, 55 and 65ºC and at relative humidities (φ) of 25, 35, 45 and 55%, forming 16 different sets of conditions, with an initial moisture content for all conditions of 2.27 dry basis (d.b.), dried until 0.11 d.b. Changes in the product dimensions were measured continuously during drying. Surface area-to-volume ratio values increased with moisture content decrease. The... |
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Palavras-chave: 5.00.00.00-4; 5.03.00.00-8; 5.03.03.02-3 surface area-to-volume ratio; Post-harvest; Activation energy; Coffea arabica L; Shrinkage Ciências Agrárias; Engenharia Agrícola; Armazenamento de Produtos Agrícolas surface area-to-volume ratio; Post-harvest; Activation energy; Coffea arabica L; Shrinkage. |
| Ano: 2011 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/7080 |
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| Grzybowski, Camila Ribeiro de Souza; Silva, Rosemeire Carvalho da; Vieira, Elisa Serra Negra; Panobianco, Maristela. |
| The objective was to study the processing of Vernonanthura discolor seeds, evaluating their physical and physiological qualities and defining parameters for purity analysis and determine the weight of one thousand seeds. The seeds extracted from the infructescences were processed in a blower, testing combinations of openings of the calibration valve and the side air passage. After processing, the seeds went through water content determination, germination tests, first count of the germination test, purity analysis, weight of one thousand seeds and percentage of full seeds. Compared to the control, seeds processed in a regulated blower with the calibrator valve in position 10 plus three 360° turns of side air passage obtained an approximately three-fold... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Vassourão-preto; Post-harvest; Purity analysis; Weight of one thousand seeds; Seeds blower; Germination.; Produção e Beneficiamento de Sementes; Vassourão-preto; Pós-colheita; Análise de pureza; Peso de mil sementes; Produção e Beneficiamento de Sementes. |
| Ano: 2018 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/39574 |
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| Silva, Gutierres Nelson; Grossi, José Antônio Saraiva; Carvalho, Marcela Silva; Kuki, Kacilda Naomi; Goulart, Samuel de Melo; Pimentel, Leonardo Duarte. |
| Macauba fruits are oil-rich drupes with high moisture content at harvest. This feature can affect the chemical properties of the oil and increase the costs of biodiesel production. Therefore, it is necessary to adopt postharvest strategies to ensure oil quality. The aim of this work was to evaluate the effect of drying macauba fruit on the quality of the pulp oil. Husked and dehusked fruits were dried at 60°C and then stored. At 0, 15, 45, 100, and 180 days after storage, fruit samples were retrieved, and the oil from the pulp was evaluated for physicochemical parameters. The removal of the husk from the fruits considerably reduced the drying time compared to that of the husked fruits. Drying prevented deterioration of the fruit even after 180 days of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Acrocomia aculeata; Post-harvest; Storage; Bioenergy; Armazenamento de Produtos Agrícolas. |
| Ano: 2019 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/43451 |
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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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| BERTOLUCCI,SUZAN K.V.; PEREIRA,ANA B.D.; PINTO,JOSE E.B.P.; OLIVEIRA,ALAIDE B.; BRAGA,FERNAO C.. |
| The leaves of Mikania laevigata and Mikania glomerata are used in Brazil to treat respiratory affections, being kaurane-type diterpenes and coumarin considered as the bioactive compounds. The present study reports an investigation on the HPLC-DAD profiles and contents of coumarin (1), trans-o-coumaric (2), kaurenoic (3), benzoylgrandifloric (4) and cinnamoylgrandifloric (5) acids in dried leaves of Mikania species stored in dark room under controlled conditions. Excepting 2, the constituents were isolated and purified to be employed as reference compounds. The samples were analyzed at three monthly intervals up to 18 months for M. laevigata and 12 months for M. glomerata. trans-o-Coumaric was not detected in both, whereas 1 occurred only in M. laevigata.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Chemical markers changes; HPLC-DAD analysis; Mikania laevigata; Mikania glomerata; Storage; Post-harvest. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652013000200473 |
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| Moreira,Adônis; Castro,César de; Fageria,Nand K.. |
| In the Amazon region, there is no information on the fertilization of banana plants with boron (B). Besides this, the extractant (hot water) currently used to test B concentrations has many limitations. The aim of this work was to study the effect of B on the fruit yield and quality of banana plants of the Cavendish (AAA) sub-group, grown in dystrophic Yellow Latosol (Oxisol or Xanthic Ferralsol), in the Amazonas State, Brazil. The experimental design was completely randomized split plot in a 4 x 2 factorial scheme, composed of four B rates (0, 4, 8 and 12 kg ha-1) and two harvest cycles (sub-treatments), with four replicates. The B availability in the soil was determined by three extractants: Mehlich 3, hot water and KCl 1.0 mol L-1. The application of B... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Musa spp.; Yield; Methods of soil analysis; Post-harvest. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652010000400030 |
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| Dolinski,Marcos Antonio; Dangelo,Jessica Welinski de Oliveira; Cuquel,Francine Lorena; Motta,Antonio Carlos Vargas; Mio,Louise Larissa May De. |
| ABSTRACT The increasing consumer demand for fruit quality justifies the development of researches that combine orchards management and consumers’ perception of the quality of the product. The aim of this study was to evaluate the effect of nitrogen fertilization combined with green pruning intensity on fruit quality of ‘Chimarrita’ from high density peach trees during three consecutive harvest seasons. For this purpose, urea composed of different nitrogen rates (0, 40, 80, 120, 160, 200 and 240 kg.ha-1.year-1) was applied, under two intensities of green pruning (annual – once per season; or continuous – four times per season) in a factorial scheme (7 × 2). Fruits have been subjected to physical, chemical and sensorial analysis, made by 60 non-trained... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Prunus persica; Mineral nutrition; Fruit quality; Post-harvest; Organoleptic. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052018000100134 |
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| Luengo,Rita de Fátima Alves; Calbo,Adonai Gimenez; Jacomino,Angelo Pedro. |
| In the present work one determined the threshold pile height below which cracking and other deformations do not occur in products with low apparent density such as lettuce, collard greens and bell pepper. Initially the threshold pile height was sought applying decreasing compression stresses equivalent to pile loads of 160, 120 and 80 cm, with four replicates in four hour assays. The safe threshold pile height which protects the products against cracking rupture in these three commodities were of 80 cm. In a complementary study, plastic and elastic deformations induced by this safe pile threshold height were measured. The irreversible deformation, plastic deformation component, were lower in bell pepper (3.8 %), medium in lettuce (4.23 %) and had the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Brassica oleraceae acephala; Capsicum annuum; Lactuca sativa; Pile height; Post-harvest. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542008000100026 |
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| Registros recuperados: 41 | |
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