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Ionizing radiation applications for a sustainable environment: food preservatio...
Antonio, Amilcar L.; Bento, Albino; Ferreira, Isabel C.F.R.; Cabo Verde, Sandra; Quintana, BegoñaThe use of ionizing gamma radiation is regulated and authorized by international organizations (EU, EFSA, IAEA, FAO, WHO) for industrial radiation processing of several products: medical devices sterilization, materials modification, cultural heritage preservation and food decontamination. Due to the wrong association of irradiated food with radioactive food, several obstacles have to be overcome in order to pr...
Electron beam irradiator for post-harvest processing of chestnut fruits: techni...
Antonio, Amilcar L.; Bento, Albino; Botelho, M. Luisa; Quintana, Begoña; Zimek, ZbigniewIn a recent worldwide estimation, food irradiation processing represents about 400 000 ton, from which almost half (186 000 ton) were to eliminate insects. In EU Mediterranean countries chestnut fruits production represents a market of more than 100 000 ton, being Portugal the third producer with an amount of 20 000 ton, exporting 25% of the production, representing an income of about 15 million Euros. In March...
Absorbed dose and effective dose in food irradiation: measurement and validatio...
Antonio, Amilcar L.; Santos, Pedro M.P.; Bento, Albino; Quintana, BegoñaFood products are processed by different technologies in order to increase its safety and shelflife. Food irradiation is regulated in European Union by the Directive 1999/2/EC, approved by international organizations of food (FAO – Food and Agriculture Organization) and health (WHO – World Health Organization) and the demand for post-harvest processed food products without use of chemicals could be an opportuni...
Dosimetric characterization of a multipurpose experimental Gamma chamber
Antonio, Amilcar L.; Carocho, Márcio; Santos, Pedro; Cabo Verde, S.; Bento, Albino; Botelho, M. Luísa; Quintana, BegoñaIonizing radiation is used as an industrial process for different purposes: sterilization, disinfestation, increase food products shelf life or for materials modification. Each industrial use is preceded by a validation process, to study the impact of the radiation on the product characteristics. At Nuclear and Technological Campus, Portugal, an experimental gamma chamber with four Co-60 sources, with a total a...
Influence of e-beam postharvest irradiation in the colour of four European ches...
Antonio, Amilcar L.; Carocho, Márcio; Bento, Albino; Rafalski, Andrzej; Quintana, BegoñaIn this study we characterized the physical dimensions of four European chestnut varieties of Castanea sativa, 3 from Portugal (Cota, Longal and Judia) and 1 from Italy (Palummina). The typical physical dimensions of the different chestnut fruit varieties could be used to optimize the process in an irradiation preservation treatment. The chestnut fruits were submitted to an irradiation preservation treatmen wit...
Gamma irradiation preservation of chestnut fruits: effects on color and texture
Antonio, Amilcar L.; Fernandes, Ângela; Bento, Albino; Ferreira, Armando; Trigo, M. João; Botelho, M. Luísa; Quintana, Begoña; Ramalhosa, ElsaChestnuts are a seasonal fruit that must be postharvest treated to meet food safety regulations. In this study the effect of gamma irradiation on color and texture of chestnut fruits from a European variety (Castanea sativa Miller) was reported. The fruits were subjected to gamma irradiation doses of 0.5, 3 and 6 kGy, with color and texture properties analyzed along a typical commercial period for this fruit af...
Preservation of chestnut fruits by gamma irradiation: inter-comparison of absor...
Antonio, Amilcar L.; Bento, Albino; Quintana, Begoña; Botelho, M. LuísaFood irradiation is a well established process, approved by international organizations of food (FAO – Food and Agriculture Organization) and health (WHO – World Health Organization), and regulated in European Union by the Directive 1999/2/EC. Chestnuts are a seasonal fruit that must be post-harvest treated to meet the food safety regulations. Until recently, this was done with methyl bromide fumigation that wa...
Computed tomography images to assess the dose in irradiated chestnut fruits
Antonio, Amilcar L.; Trindade, Mauro; Bento, Albino; Botelho, M. Luísa; Quintana, BegoñaReport of the Methyl Bromide Technical Options Committee. United Nations Environment Programme. EU, 2008. Commission Decision. Official Journal of the European Union, L 258/68, 26 September. Antonio, A. L., Carocho, M. Bento, A., Quintana, B., Botelho, M.L., Ferreira, I.C.F.R. (2012). Effects of gamma radiation on the biological, physico-chemical, nutritional and antioxidant parameters of chestnuts - A review...
Effects of gamma irradiation on physico-chemical parameters of chestnut fruits
Antonio, Amilcar L.; Ramalhosa, Elsa; Quintana, Begoña; Botelho, M. Luísa; Bento, Albino; Ferreira, Isabel C.F.R.Food irradiation is a versatile process that can be applied to different food products to increase shelf life, for disinfestation or sterilization, being an alternative processing food technology to meet food safety quality parameters. Chestnut (Castanea sativa Mill.) is an important food resource in several countries that it is post-harvest tretated, mainly for disinfestation, till recently with chemical fumi...
Implementation of food irradiation in Portugal: research, economic and industri...
Antonio, Amilcar L.; Ferreira, Isabel C.F.R.; Ramalhosa, Elsa; Bento, Albino; Quintana, Begoña; Cabo Verde, S.; Botelho, M. LuísaFood irradiation is a process that has been regaining an increasing interest for different food products to increase shelf life, for disinfestation or sterilization, being an alternative processing food technology to meet food safety quality parameters. The development of ionizing radiation applications for industrial purposes in Portugal began near of 1982 with the support of the International Atomic Energy A...
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