Loading...
33 results
Search Results
Now showing 1 - 10 of 33
- Experimental study of the consequences of controlled atmosphere conservation environment on cherry characteristicsPublication . Andrade, L.P.; Nunes, José; Simões, M.P.; Morais, Diogo; Canavarro, M.C.C.; Espírito Santo, Christophe; Gaspar, Pedro Dinis; Silva, Pedro Dinho da; Resende, Mafalda; Caseiro, Catarina; Beato, Helena; Belane, Yuran; Ferreira, DoraCherry is a highly perishable fruit widely appreciated that is only commercialized during a short period. The post-harvest control and monitoring of this fruit is central and essential for optimal consumption in its highest state of quality. The conservation process aimed to inhibit the microbial propagation is usually accomplished by low temperatures and/or variable atmosphere composition. This paper describes experimental tests conducted in different refrigeration chambers located in industrial and laboratorial facilities. The latter one includes modified atmosphere and controlled atmosphere chambers. The tests were performed with four different concentration of O2 and CO2 in the controlled atmosphere chamber. Fruit samples extracted from each chamber were analyzed at specific residence times and several organoleptic characteristics were analyzed. The results show that the modified and controlled atmosphere maintain the fruit quality in terms of size, color, appearance and firmness, thus increasing their shelf life and food safety.
- Guia de referenciação dos parâmetros de qualidade do leite destinado ao fabrico do queijo Rabaçal com DOPPublication . Paulo, Luísa; Silveira, Ana; Riscado, Ana; Espírito Santo, Christophe; Pintado, Cristina Miguel; Beato, Helena; Andrade, L.P.; Resende, Mafalda; Cristóvão, Mário André Monteiro; Rodrigues, A.M.Com este trabalho, onde apenas são abordados aspetos relativos às características físico-químicas e microbiológicas dos leites de ovelha e cabra recolhidos na área geográfica de produção do Queijo Rabaçal com DOP, apresentam-se os resultados de amostras de leite recolhidas nos produtores entre fevereiro de 2019 e julho de 2021 analisadas nos Laboratórios da Associação CATAA e os resultados analíticos recolhidos nos boletins de análise de leite do tanque de refrigeração dos produtores que se candidataram ao “Vale Pastor +”, uma ação integrada no Programa de Valorização da Fileira do Queijo da Região Centro.
- Nutritional profile of hazelnuts from Beira Interior: a comparative study of nine varietiesPublication . Vasconcelos, Vanessa; Paulo, Luísa; Beato, Helena; Pitacas, F.I.; Rodrigues, A.M.; Espírito Santo, ChristophePhysicochemical and nutritional characterization of Quince (Cydonia oblonga) from the Cova da Beira Region.
- Nutritional characteristics and minerals of Lardosa cowpea landraces: a strategic legume species for the futurePublication . Beato, Helena; Resende, Mafalda; Paulo, Luísa; Martins, Catarina; Cristóvão, Mário André Monteiro; Vasconcelos, Vanessa; Brandão, Inês; Pitacas, F.I.; Rodrigues, A.M.; Espírito Santo, ChristopheCowpeas have been cultivated at least since the 8th century BC. [1; 2]. This grain legume (Vigna unguiculata L. Walp.), one of Africa's natural food gifts to the world, is characterized by its high nutritional value, ability to fix nitrogen and great tolerance to drought. The tolerance of this legume to low fertility soils, high temperatures and scarce water regimes makes this one of the most resistant crops to adverse edaphoclimatic conditions. It is certainly a very important culture in southern European countries like Portugal.
- Energy life-cycle assessment of fruit products - Case study of Beira Interior’s peach (Portugal)Publication . Gaspar, João Pires; Gaspar, Pedro Dinis; Silva, Pedro Dinho da; Simões, M.P.; Espírito Santo, ChristopheCurrently, there is a growing demand for cleaner and sustainable technologies due to environmental issues. In this sense, there is a necessity to manage the assessment of production processes and the rationalization of energy consumption. In this study, an Energy Life-Cycle Assessment (ELCA) was carried out through energy efficiency indicators, directed to the characterization and renewability of the peach production system life-cycle in the Portuguese region of Beira Interior. The study intends to investigate the non-renewable energy inputs from fossil fuels, as well as the emissions resulting from machinery. In addition, warehouse energy inputs are analyzed, mainly cooling systems of refrigerated chambers where fruits are preserved. This analysis aims to find opportunities for technological, environmental and best practices improvements. Test scenarios were analyzed and revealing soil groundcover maintenance is the operation with the largest impact in the energy consumption of the production process (3176 MJ·ha−1 ). In the post-harvest processes, the energy consumption largest impact is given by the warehouse’s operations (35,700 MJ·ha−1 ), followed by transportation (6180 MJ·ha−1 ). Concerning the emissions resulting from the fuels consumption, the largest impact is due to the plantation machinery and the transportation from warehouse to retailers
- Nutritional characterization of honey from the Beira Baixa RegionPublication . Resende, Mafalda; Beato, Helena; Andrade, L.P.; Espírito Santo, ChristopheHoney is a natural, sweet viscous food produced by honeybees and other insects through regurgitation, enzymatic activity and water evaporation, to sustain the colony when flowers are not in season. Domestication of the Apis genera of the honeybees, lead Humans to better control the quality and the amount of honey production. Honey’s nutritional value is exceptional, due to the variety of carbohydrates, such as fructose, glucose, sucrose, maltose and other polysaccharides and oligosaccharides. Additionally, honey is composed of multiple vitamins, minerals, flavonoids, acids, and enzymes. Honey’s biological activity is quite known and studied for high antioxidant content, and for bactericidal and antiviral action. Honey is one of the most important food products made in the Beira Baixa Region. Here, we show the nutritional value of the Honey produced in neighbour cities in Beira Baixa’s region: Oleiros, Castelo Branco and Vila Velha de Rodão; with special focus on the carbohydrate composition compared between the type of honey.
- The effect of controlled atmosphere storage on fruit quality and postharvest performance of ‘Sweet Henry’ peach cultivarPublication . Veloso, Abel; Gaspar, Pedro Dinis; Andrade, L.P.; Espírito Santo, Christophe; Resende, Mafalda; Silva, Pedro Dinho da; Teixeira, M.C.C.; Simões, M.P.Peach is a highly perishable climacteric fruit. Cold storage is the most widely used method for peach storage, delaying fruit deterioration. This study describes the experimental tests developed to evaluate the evolution of peach characteristics under different storage conditions of controlled (CA) and normal atmosphere (NA) of ‘Sweet Henry’ cultivar. Tests were performed in refrigeration chambers in industrial and laboratory facilities, throughout 2years. In the controlled atmosphere chamber, the tests were performed with 3different concentrations of O2 and CO2, namely 3 treatments of controlled atmosphere (2% O2-5% CO2, 2% O2-10%CO2and 2% O2-15% CO2), 2treatments of normal atmosphere (at Research Centre and at FarmersOrganization facilities). From each treatment, peach samples were extracted and analyzed at 14, 21, 28, 35 (for all treatments) and at 42, 49, and 56 days(for controlled atmosphere). The analysis of the biometric parameters NDASHsize, weight, color, firmness, total soluble solids, acidity – were performed inorder to evaluate peach quality. In FO treatment, a weight loss of -13% in 2020 and -11% in 2021 was observed after 35 days. In NA treatment the maximum weight loss was -5% after 35 days of storage. A decrease of fruit firmness and acidity content was observed in all the treatments throughout time, but firmness remain globally similar between CA treatments. The CA treatments maintained the fruit quality in terms of weight, and firmness, thus increasing fruit market life. First chilling injury (CI) symptoms were observed at 35 + 2days of storage. The treatment 2% O2-15% CO2 allowed fruit firmness maintenance, the minimal decrease of acidity content and low CI incidence of Sweet Henry cultivar for a storage period of 56 days.
- Guia de referenciação dos parâmetros de qualidade do leite destinado ao fabrico de queijos da Beira Baixa com DOPPublication . Paulo, Luísa; Silveira, Ana; Riscado, Ana; Espírito Santo, Christophe; Pintado, Cristina Miguel; Beato, Helena; Andrade, L.P.; Resende, Mafalda; Cristóvão, Mário André Monteiro; Rodrigues, A.M.Com este trabalho, onde apenas são abordados aspetos relativos às características físico-químicas e microbiológicas dos leites de ovelha e cabra recolhidos na área geográfica de produção dos Queijos da Beira Baixa com DOP, apresentam-se os resultados de amostras de leite recolhidas nos produtores entre fevereiro de 2019 e julho de 2021 analisadas nos Laboratórios da Associação CATAA e os resultados analíticos recolhidos nos boletins de análise de leite do tanque de refrigeração dos produtores que se candidataram ao “Vale Pastor +”, uma ação integrada no Programa de Valorização da Fileira do Queijo da Região Centro.
- Orange snacks as a solution for orange surplus in PortugalPublication . Cristóvão, Mário André Monteiro; Camelo, Alexandra; Martins, Ana; Silveira, Ana; Riscado, Ana; Rodrigues, Ana; Baptista, Cátia; Beato, Helena; Vasconcelos, Vanessa; Paulo, Luísa; Pitacas, F.I.; Rodrigues, A.M.; Espírito Santo, ChristopheIn the summer of 2022, Portugal experienced a downfall of the price of oranges, mainly due to pressure of the agricultural commodity market and the change in trade dynamics in Europe due to the war in Ukraine. One way to add value to a product is to transform it into something new.
- Nutritional and physicochemical analysis of quince from Cova da Beira region: similarities, differences and particularitiesPublication . Lopes, Guido; Martins, Ana; Camelo, Alexandra; Rodrigues, Ana; Rodrigues, A.M.; Beato, Helena; Paulo, Luísa; Resende, Mafalda; Cristóvão, Mário André Monteiro; Mota, Marlene; Espírito Santo, ChristopheQuince, a fruit from the autumn season of the quince tree (Cydonia oblonga Miller), has a considerable nutritional value (e.g., pectin, vitamins C and B complex, minerals or chlorogenic acids). On the other hand, this fruit is characterized by having a hard, rough-looking pulp with a bitter and astringent taste. Since quince is not consumed raw, is mainly used in the production of jams and marmalades. Despite being easy to grow and weather resistant, its production is often neglected and undervalued. Thus, the study objective was to value quinces from the Cova da Beira region by the physicochemical and nutritional characterization, substantiating by how different production years and localization affect quince varieties properties.
