01. Universidade Federal Rural de Pernambuco - UFRPE (Sede)
URI permanente desta comunidadehttps://arandu.ufrpe.br/handle/123456789/1
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7 resultados
Resultados da Pesquisa
Item Processo de Renovação Generalizado baseado na distribuição Gumbel como modelo de estimativas de ocorrências de ondas de calor para auxiliar no processo de tomada de decisão do cultivo de manga no Sertão de Pernambuco(2023-05-08) Ferraz, Kimbelly Emanuelle Avelino; Cristino, Cláudio Tadeu; http://lattes.cnpq.br/0295290151219369; http://lattes.cnpq.br/2320958356149704Several types of events can harm the planting, harvesting or handling of plants and fruits in agricultural areas, one of them including the event called heat waves, which is characterized as a prolonged and relatively uncommon meteorological phenomenon with extremely high temperatures for the region and persistent for several days or even weeks. Given the importance of agriculture, this work seeks, through the analysis of the maximum temperature data in the Petrolina region, the study of the mango plantation, the Heat Wave event through the 90th percentile, optimization algorithms and the processes of generalized renewal and Gumbel, estimating this event contributing to the farmer’s decision making and optimization of Mango production. The proposed model uses the generalized renewal process based on the Gumbel distribution (GuGRP) to model the time intervals between heat waves, considering that consecutive events are conditionally independent. This model proved to be adherent to model events with a significance level of 0.05 and a P −V alue of 0.28 through the Kolmogorov-Smirnov adherence test on the adequacy data adapted to the GuGRP. The model parameters were estimated by Log-Likelihood using optimization algorithms, also specifically testing the Particle Swarm algorithm.Item Elaboração de projeto para implantação de mangicultura na Fazenda Quixaba em Belém do São Francisco Relatório de Estágio Supervisionado Obrigatório (ESO)(2023-04-26) Galvão, Erick Vinicius Pereira Araruna Cruz; Farias Neto, José Henrique de; http://lattes.cnpq.br/8528740437824882; http://lattes.cnpq.br/7024758685695330Item Acompanhamento do controle de qualidade na pós-colheita de mangas na exportadora Agrobras Agrícola Tropical do Brasil(2020) Silva, Aline Gabriela Santos Soares da; Barboza, Marianne de Lima; http://lattes.cnpq.br/8665242735385886; http://lattes.cnpq.br/4719275587753321Item Desenvolvimento e aplicação de cobertura de quitosana e levana na conservação pós-colheita de manga minimamente processada(2021-12-06) Santos, Rebeca Fernandes dos; Maciel, Maria Inês Sucupira; http://lattes.cnpq.br/2091651168946523; http://lattes.cnpq.br/1088437585305186Brazil is a great fruit producer due to the climatic conditions that favor the cultivation of tropical fruits. Among the cultures that stand out for their high production and export is mango. Mango (Mangifera indica L.) is one of the tropical fruits most consumed by Brazilians, having high nutritional value, such as vitamin C, β-carotene, and minerals. Because they are perishable products, such as fruit, they reduce losses from their production until they reach the consumer, and this annual waste of tons of food causes an economic loss, in addition to environmental impacts. Chitosan is a polysaccharide that has antifungal activity and semi-permeable properties, decreasing the respiration rate and water loss of fruits. Levana is also a polysaccharide used in the food industry as a core and flavor fixative, thickener, and stabilizer in dessert gels. This study aimed to develop a coating for application in minimally processed mangoes from a combination of levan and chitosan, determining the best proportion between them that presents satisfactory characteristics and properties to store at different prices over a while. The topping was prepared at a concentration of 90% w/v chitosan and 10% w/v levan with a concentration of 0.5% v/v glacial acetic acid and 1% w/v glycerol, and then applied to the mango pieces that were stored at temperatures of 25 ± 2ºC and 2 ± 1ºC. The samples were analyzed every 3 days for color, soluble solids, water activity, moisture, titratable acidity, and pH. Mango slices stored at a temperature of c were not analyzed for showing fungus on the fourth day of storage. Mango slices at 2 ± 1°C temperature not alternated probably from water activity, pH and humidity during the entire storage time. There was a significant increase during the storage period in the soluble solids content, titratable acidity and as variables color L*, a*, and b*. There was also a delay in darkening and an increase in yellow pigmentation. The coating with chitosan (90% w/v) and levan (10% w/v) present satisfactory characteristics for application in minimally processed mangoes. Physical analyzes increased that coating could be effective in increasing shelf life, as it delayed browning, likely undistorted pH, and water activity.Item Flutuação populacional de moscas-das-frutas (Diptera: Tephritidae) em pomares de mangueira no Vale do São Francisco, em Petrolina - PE(2019) Teodoro, Eduardo Vitor Dutra; Mendonça Júnior, Antônio Francisco de; http://lattes.cnpq.br/3551551589013115; http://lattes.cnpq.br/8531940323213088Item Produção de manga no Vale do São Francisco, nas fazendas do grupo Agrobras, município de Casa Nova – BA(2021) Medeiros, Ana Emília Coelho; Souza Júnior, Valdomiro Severino de; http://lattes.cnpq.br/3461006118388502; http://lattes.cnpq.br/5291532979219831Item Estágio Supervisionado Obrigatório na IBACEM Agrícola: cultura da mangueira(2019) Pereira, Clayton de Vasconcelos; Musser, Rosimar dos Santos; http://lattes.cnpq.br/6081373885915842; http://lattes.cnpq.br/0050163044102958