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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...
Castanea sativa Mill. flowers amongst the most powerful antioxidant matrices: a...
Carocho, Márcio; Barros, Lillian; Bento, Albino; Santos-Buelga, Celestino; Morales, Patricia; Ferreira, Isabel C.F.R.Infusions and decoction of chestnut tree flowers have been used for different medical purposes, but their phytochemical profile and antioxidant activity are still mostly unknown. Herein, decoctions and infusions of flowers from the two most appreciated chestnut cultivars (longal and judia) in Tr´as-os-Montes, Portugal, were prepared and characterized with regard to their content in free sugars, organic acids, a...
Validation of gamma and electron beam irradiation as alternative conservation t...
Carocho, Márcio; Antonio, Amilcar L.; Barreira, João C.M.; Rafalski, Andrzej; Bento, Albino; Ferreira, Isabel C.F.R.Chestnuts are widely consumed around the world, especially in China, which is the major producer. Portugal is the fifth biggest producer, reaching and income of 17 M€, with particular relevance for Trás-os-Montes region, which is responsible for 81% of Portuguese production. During postharvest storage, a number of pests tend to attack chestnuts, contributing to high economic losses. Since 2010, the most effecti...
Analysis of organic acids in electron beam irradiated chestnuts (Castanea sativ...
Carocho, Márcio; Barros, Lillian; Antonio, Amilcar L.; Barreira, João C.M.; Bento, Albino; Kałuska, Iwona; Ferreira, Isabel C.F.R.Since 2010, methyl bromide, a widely used fumigant was banned from the European Union under the Montreal Protocol guidelines, due to its deleterious effects on health and risk to the environment. Since then, many alternatives for chestnut conservation have been studied (hot water dip treatment being the most common), among them, electron beam irradiation has been proposed as being a safe, clean and cheap altern...
Effects of gamma and electron beam irradiations on the triacylglycerol profile ...
Barreira, João C.M.; Carocho, Márcio; Ferreira, Isabel C.F.R.; Antonio, Amilcar L.; Kałuska, Iwona; Botelho, M. Luísa; Bento, Albino; Oliveira, M.B.P.P.The present chestnut (Castanea sativa Miller) commercialization dynamics, including distribution to novel markets, demands suitable conservation technologies. Irradiation has been considered a promising alternative to chemical fumigation (legally forbidden and harmful for human health and environment) or heat treatments (technological difficulties and low efficiency). Following previous studies on the effects o...
Application of gamma and electron beam irradiation for chestnuts conservation
Carocho, Márcio; Antonio, Amilcar L.; Barreira, João C.M.; Barros, Lillian; Rafalski, Andrzej; Botelho, M. Luísa; Oliveira, M.B.P.P.; Bento, AlbinoDue to the distribution of low quality products, adulteration, counterfeit on the Ukrainian market, the widening of export-import supplies, it is too important to develop criteria and methods for the identification domestic and exported food products, detection of adulteration, techniques and methods assessing quality and early spoilage screening of food products using modern express methods of analysis. Such m...
Gamma and electron beam irradiation as an alternative for postharvest treatment...
Carocho, Márcio; Antonio, Amilcar L.; Barreira, João C.M.; Barros, Lillian; Rafalski, Andrzej; Bento, Albino; Ferreira, Isabel C.F.R.Chestnut fruits are an important food commodity in the Northeast region of "Trás-osMontes", representing an income of approximately 17 M€ and being Porn1gal one of the: world's biggest producer. Due to environmental concerns a broad spectrum fumigant, methyl bromide, was banned in 20 I 0 by the European Union. Since then, no adequate postharvest treatment has been implemented, fostering research on suitable alt...
Influence of electron beam irradiation in the organic acids profile of Portugue...
Carocho, Márcio; Antonio, Amilcar L.; Barros, Lillian; Barreira, João C.M.; Bento, Albino; Rafalski, Andrzej; Ferreira, Isabel C.F.R.Organic acids are primary metabolites that play important roles in plant metabolism and confer distinct flavors in fruits. Their consumption is beneficial for humans, namely against certain illnesses. The food industry uses them as preservatives and flavor enhancers. In fruits conservation and transport, organic acids should be preserved at all costs in order to maintain physical quality and pleasant flavors un...
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