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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...
The effects of e-beam radiation in the antioxidant potential of chestnuts (Cast...
Carocho, Márcio; Antonio, Amilcar L.; Kałuska, Iwona; Bento, Albino; Botelho, M. Luísa; Ferreira, Isabel C.F.R.Chestnut fruits (Castanea sativa Mill.) are widely consumed all over the world, and have been studied in terms of nutritional value and also for their antioxidant potential [1]. In Europe, Portugal is a leading producer of this nut, along with Italy, and the conservation of the chestnut’s properties is essential, especially for export [2]. Irradiation might be an alternative conservation method, since Methyl Br...
Electron beam radiation applied to portuguese chestnuts (Castanea sativa Mill.)...
Carocho, Márcio; Antonio, Amilcar L.; Bento, Albino; Kałuska, Iwona; Ferreira, Isabel C.F.R.Chestnuts are a widely consumed nut around the world, being China the biggest producer. Portugal represents 4% of its worldwide production with a gross weight of 22105 tons of chestnut in 2010, and an income of 15 M€. The Trás-os-Montes region produces 75% on the nation’s chestnuts being one of its main economic resources. Storage of these nuts is an important step during processing to avoid rotting related to ...
Comparative effects of electron beam and gamma radiation on the triacylglycerol...
Barreira, João C.M.; Antonio, Amilcar L.; Carocho, Márcio; Ferreira, Isabel C.F.R.; Kałuska, Iwona; Botelho, M. Luísa; Bento, Albino; Oliveira, M.B.P.P.CChestnut (Castanea sativa) global production is continuously growing; Portugal produces 20,000 t per year, being 75% of this production concentrated in the Trás-os-Montes region [1]. In order to reach new markets, effective conservation technologies are mandatory, especially since the European Union banned methyl bromide for allegedly being toxic to operators and a severe environment pollutant [2]. Other conse...
Influência da radiação de feixe de eletrões no teor em açúcares da castanha (Ca...
Carocho, Márcio; Antonio, Amilcar L.; Kałuska, Iwona; Barreira, João C.M.; Bento, Albino; Ferreira, Isabel C.F.R.Portugal ocupa uma posição de destaque entre os maiores produtores mundiais de castanha, sendo a região Transmontana a mais importante. Em 2010, a União Europeia baniu o brometo de metilo como método de desinfestação de castanhas, devido ao seu impacto negativo no ambiente e os riscos para a saúde dos operadores [1]. Entre as alternativas de conservação estudadas, a irradiação tem-se revelado bastante promissor...
Comparative effects of gamma and electron beam irradiation on the antioxidant p...
Carocho, Márcio; Antonio, Amilcar L.; Barros, Lillian; Bento, Albino; Botelho, M. Luísa; Kałuska, Iwona; Ferreira, Isabel C.F.R.Chestnuts (Castanea sativa Mill.) are widely consumed all over the world, and have been recently studied for their antioxidant potential. The present study reports the effect of e-beam and gamma radiation (doses of 0, 0.5, 1 and 3 kGy) on the antioxidant potential of Portuguese chestnuts. Irradiation might be an alternative preservation method, since Methyl Bromide, a widely used fumigant, was banished by the E...
Effects of electron beam radiation on nutritional parameters of Portuguese ches...
Carocho, Márcio; Barreira, João C.M.; Antonio, Amilcar L.; Bento, Albino; Kałuska, Iwona; Ferreira, Isabel C.F.R.Chestnuts are a widely consumed fruit around the world, being Portugal the fourth biggest producer in Europe. Storage of these nuts is an important step during processing, and the most widely used fumigant was banned in the European Union under the Montreal protocol due to its toxicity. Recently, radiation has been introduced as a cheap and clean conservation method. Previous studies of our research group prove...
Ionizing irradiation post-harvest processing of chestnuts: effects of gamma and...
Antonio, Amilcar L.; Ramalhosa, Elsa; Carocho, Márcio; Bento, Albino; Kałuska, Iwona; Quintana, Begoña; Botelho, M. Luísa; Ferreira, Isabel C.F.R.Chestnut fruit must be postharvest treated to meet the international fitossanitary regulations during exportation. Chemical fumigation with methyl bromide was the most common practice for elimination of insects in those fruits. Nevertheless, it is a toxic product for the operators and was recently banned by the european legislation (March 2010), following the international recommendations of Montreal Protocol o...
Influence of e-beam irradiation processing on chestnuts color and texture
Antonio, Amilcar L.; Ramalhosa, Elsa; Kałuska, Iwona; Quintana, Begoña; Trigo, M.J.; Ferreira, Armando; Bento, AlbinoChestnut (Castanea sativa Mill.) fruit is a seasonal product with some storage problems, such as those related with the infestation by insects and developing of moulds. This fact makes that chestnut must be post-harvested treated, in order to meet the international trade fitossanitary regulations. Fumigation with methyl bromide, performed in closed chambers, was commonly used. Recently, March 2010, this treatme...
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