01.1 - Graduação (Sede)
URI permanente desta comunidadehttps://arandu.ufrpe.br/handle/123456789/2
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6 resultados
Resultados da Pesquisa
Item Armazenamento pós-colheita da palma forrageira afeta o índice de apodrecimento e a composição química dos cladódios?(2024-09-18) Felix, Thamyres Priscylla Silva de Oliveira; Santos, Mércia Virginia Ferreira dos; Silva, Natália Viana da; http://lattes.cnpq.br/0190091649509674; http://lattes.cnpq.br/9565465836878202; http://lattes.cnpq.br/4093484221298909Item Armazenamento pós-colheita afeta a digestibilidade in vitro e a produção de gases de cladódios de cultivares de palma forrageira?(2024-09-24) Barbosa, Claudenice da Cunha; Santos, Mércia Virginia Ferreira dos; Silva, Natália Viana da; http://lattes.cnpq.br/0190091649509674; http://lattes.cnpq.br/9565465836878202; http://lattes.cnpq.br/1837815718785025The forage cactus plays a fundamental role in animal feed, especially during drought periods in Northeastern Brazil. However, the cultivation and use of this forage require significant labor investment throughout the entire process, from planting to harvesting and daily transport for animal feeding. This study hypothesized that post-harvest storage of the forage cactus cultivars ‘Orelha de Elefante Mexicana’ (Opuntia stricta [Haw.] Haw.) and ‘Miuda’ (Opuntia cochenillifera (L.) Mill), for up to 56 days, may interfere by reducing the digestibility levels and gas production of the forage. The objective was to evaluate the effect of different post-harvest storage times on the in vitro digestibility and in vitro total gas production parameters of the forage cactus cultivars ‘Orelha de Elefante Mexicana’ and ‘Miuda’. The experiment was conducted at the Experimental Farm of the Federal Rural University of Pernambuco (UFRPE) Prof. Antônio de Pádua Maranhão Fernandes, located in Garanhuns - PE, Brazil. The forage cactus used was obtained from a one-year-old cactus plantation established on the farm, preserving the mother cladode during harvest. The experiment was conducted in a completely randomized design, with repeated measures over time and four replicates. Two experiments were carried out, with each cultivar of forage cactus evaluated independently. Eight experimental treatments were evaluated: 0, 8, 16, 24, 32, 40, 48, and 56 days of post-harvest storage. During storage, the aim was to maintain the cladodes without damage throughout the experimental period, with storage taking place in a covered warehouse open on the sides. The samples for analysis were composed of cladodes of different orders and from different parts of the piles. The variables evaluated were in vitro Dry Matter Digestibility (IVDMD), Indigestible Neutral Detergent Fiber (iNDF), and in vitro Total Gas Production (TGP). An analysis of variance was performed, using Tukey’s test with a significance level of 5%. The forage from Orelha de Elefante Mexicana showed high IVDMD, being 823.1 g/kg at time 0 (no storage), and an average of 660.2 g/kg from 8 to 56 days post-harvest. For iNDF, high levels were observed for Orelha de Elefante Mexicana as the storage time increased, with the 40 and 56-day post-harvest times being statistically superior to time 0 (no storage). For Miúda, iNDF on days 32, 40, and 48 of post-harvest storage was 43% higher than at time 0 (no storage). For gas production and fiber carbohydrate degradation, values of 251.5 and 153 mL/g DM were observed, respectively. The forage from Miúda presented high IVDMD at times 0 and 8 (738.4 and 726.4 g/kg), and higher gas production at times 0 and 8 (267.7 and 179.9 mL/g DM, respectively). Both forage cactus cultivars can be stored post-harvest for up to 56 days without significant compromise in digestibility levels and gas production.Item Estágio Supervisionado Obrigatório: Agapanto (Agapanthus africanus (L.) Hoffmanns.): pós-colheita e novos produtos para a floricultura(2019) Souza, Ricardo Felipe Lima de; Loges, Vivian; http://lattes.cnpq.br/2053727463453766; http://lattes.cnpq.br/0357307414497361Item 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 Controle de qualidade de hortifrutis orgânicos(2021-07-28) Cândido, Glória Maria Jardim; Carvalho, Rejane Rodrigues da Costa e; http://lattes.cnpq.br/3307316028992311; http://lattes.cnpq.br/7175532222871080