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Fortaleza, Brazil

Braga Sobrinho R.,Embrapa Agroindustria Tropical
Revista Brasileira de Fruticultura | Year: 2014

Technical and operational concepts within Integrated Production (IP) come to directly attend the requirements of national and international agencies which are in charge of inspection of commodities with focus on safety and quality of foods bought by consumers. The guarantee of producing a safe and traceable food is reached by harmonic effort of productive chain components. This must include following the Specific Technical Rules (STR) for each product allowing an effective control of the production systems by monitoring every phase of this productive chain. This concept begun with Integrated Pest Management (IPM) and, afterward expanded to a holistic vision based on four pillars: organization of the productive business; sustainable system; monitoring of the whole process; and formation of a data set. This vision includes the Integrated Production of Annonaceae, project that begun in 2010 supported by CNPq/MAPA/EMBRAPA and affiliated institutions. Annonaceae represents generic name to designate plants of Annonaceae family which has about 120 genus and about 2,300 species. In Brazil there is a register of 29 genus with 260 species. Among species of great commercial importance there are sour soup (Annona muricata L.), sweet apple (Annona squamosa L.), cherimoya (Annona cherimola Mill) and the atemoia, hybrid of A. cherimola and A. squamosa. These fruits area highly accepted due to their excellent taste and possible use as pulp for juices and others uses. Commercial areas are concentrated in the Northeast of Brazil. The largest plantations of sour soup and sweet apple are located in the state of Bahia, for sweet apple the state of Alagoas, and for atemoia the state of São Paulo. Research results for these four fruits are still very poor. Improvement has to be done on genetic, pest control, disease control, physiology of production and post harvesting.

Lima J.R.,Embrapa Agroindustria Tropical | Elizondo N.J.,University of Costa Rica | Bohuon P.,Montpellier SupAgro
International Journal of Food Science and Technology | Year: 2010

Ascorbic acid (AA) degradation and colour changes, measured by the lightness index (L*), were determined in cashew apples (at low dissolved O2 concentrations) heated at high temperature (100-180 °C) in a hermetically sealed cell. A nonisothermal method was developed to estimate thermal degradation kinetics. The results showed that reaction kinetics during heat treatments were well represented by first-order reactions. The temperature dependence of the kinetic constants was described by an Arrhenius type equation. The activation energy (Ea) for AA degradation and lightness index were 94 ± 3 and 98 ± 3 kJ mol-1, respectively. The reaction rate constant at 140 °C for AA degradation (64 × 10-5 ± 3 × 10-5 s-1) was twice that for the lightness index change (33 × 10-5 ± 2 × 10-5 s-1). Results allow generating temperature profiles of heat processes that would help preserve the AA of cashew apples as well as control the colour formation during high-temperature processes. © 2010 The Authors. Journal compilation © 2010 Institute of Food Science and Technology.

Oliveira A.B.,Federal University of Ceara | Moura C.F.H.,Embrapa Agroindustria Tropical | Gomes-Filho E.,Federal University of Ceara | Marco C.A.,Federal University of Ceara | And 2 more authors.
PLoS ONE | Year: 2013

This study was conducted with the objective of testing the hypothesis that tomato fruits from organic farming accumulate more nutritional compounds, such as phenolics and vitamin C as a consequence of the stressing conditions associated with farming system. Growth was reduced in fruits from organic farming while titratable acidity, the soluble solids content and the concentrations in vitamin C were respectively +29%, +57% and +55% higher at the stage of commercial maturity. At that time, the total phenolic content was +139% higher than in the fruits from conventional farming which seems consistent with the more than two times higher activity of phenylalanine ammonia lyase (PAL) we observed throughout fruit development in fruits from organic farming. Cell membrane lipid peroxidation (LPO) degree was 60% higher in organic tomatoes. SOD activity was also dramatically higher in the fruits from organic farming. Taken together, our observations suggest that tomato fruits from organic farming experienced stressing conditions that resulted in oxidative stress and the accumulation of higher concentrations of soluble solids as sugars and other compounds contributing to fruit nutritional quality such as vitamin C and phenolic compounds. © 2013 Oliveira et al.

Edite Bezerra da Rocha M.,State University of Ceara | Freire F.D.C.O.,Embrapa Agroindustria Tropical | Erlan Feitosa Maia F.,State University of Ceara | Izabel Florindo Guedes M.,State University of Ceara | Rondina D.,State University of Ceara
Food Control | Year: 2014

Mycotoxins are secondary metabolites produced naturally by filamentous fungi, which are considered toxic substances when present in food for humans and feed for animals. They are frequently found in products such as nuts, corn, rice, and several other cereals, which can be contaminated in the field during harvest or during storage. Studies have demonstrated their toxigenic, nephrotoxic, hepatotoxic, carcinogenic, immunosuppressive and mutagenic characteristics, and most mycotoxins represent a considerable risk to human and animal health. This review describes the main mycotoxins that have been isolated and chemically characterized and which are currently the subject of studies due to their proven potential toxicity. © 2013 Elsevier Ltd.

Charles F.,University of Avignon | Vidal V.,University of Avignon | Olive F.,University of Avignon | Filgueiras H.,Embrapa Agroindustria Tropical | Sallanon H.,University of Avignon
Innovative Food Science and Emerging Technologies | Year: 2013

This study investigated the impact of pulsed light treatment on physical and nutritional quality of fresh-cut "Kent" mangoes. Pulsed light treatments were carried out using an automatic flash lamp system (Mulieribus, Claranor) composed of eight lamps situated all around the sample with a total fluence of 8 J cm- 2. Firmness, colour, phenol, carotenoid, ascorbic acid contents and enzyme activities (Phenylalanineammonialyase, PAL and Polyphenoloxydase, PPO) were analysed. Pulsed light treatment maintained the firmness, the colour and the carotenoid content of fresh-cut mangoes. The treatment increased PPO activities after 3 days and maintained PAL activity. For the nutritional aspect, pulsed light maintained phenol and total ascorbic acid contents such as the control. Our results suggest that the application of pulsed light could be used with fresh-cut mangoes to improve physical quality and maintain nutritional properties. Industrial Relevance Mango is one of the most important tropical fruit worldwide with an increasing demand for "ready to eat" products, because of convenience and fresh-like quality. However, fresh-cut mangoes suffer from browning and softening. Conventional thermal treatments decreased the browning but may contribute to the degradation of certain component. Nowadays, alternative nonthermal technologies are more and more studied such as Pulsed Light. In industry, Pulsed light is used to decontaminate surfaces, packaging or food (bread). No application is available on fruits and vegetables. This work estimated the feasibility of pulsed light treatment to improve the quality of fresh-cut mangoes. The results obtained are promising and could improve the use of pulsed light treatment to extend the shelf-life of fresh-cut products. © 2013 Elsevier Ltd. All rights reserved.

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