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Type: Artigo de periódico
Title: Effect Of Ultraviolet-c Radiation On "kumagai" Guavas Infested By Ceratitis Capitata (diptera-tephritidae) And On Physical Parameters Of Postharvest
Author: JanuariaVieira S.M.
Raga A.
Benedetti B.C.
Oliveira R.A.D.
Marco P.G.D.
Scarponi A.P.D.T.
Abstract: Physical quarantine methods are being developed to replace fumigants to control arthropods and microorganisms during post-harvest management of fruit and vegetables. This study aims to evaluate the use of UV-C radiation to disinfest guava with Ceratitis capitata (Wied.) eggs and evaluate the quality of fruit irradiated at two different storage temperatures. For the in vitro test, one-day old C. capitata eggs were exposed to increasing doses of UV-C radiation and stored in a B.O.D. chamber. Applying in vivo tests, 'Kumagai' guavas were exposed to artificial infestation by medfly. After infestation, the fruits were subjected to an increasing intensity of UV-C radiation and stored in a B.O.D. incubator at 23.0±0.2°C for about 20 days. In vitro tests indicated that 1.383kJm-2 UV-C on C. capitata eggs was capable of preventing the eclosion of larvae. However, guavas infested by medfly eggs needed 16.0kJm-2 of UV-C to prevent pupation. The guavas subjected to treatment with UV-C radiation and stored at a temperature of 8±0.2°C, obtained much better responses in terms of quality indices than those stored at 22±0.2°C, which lends credence to the storage temperature being a key factor in maintaining fruit quality. © 2013.
Rights: fechado
Identifier DOI: 10.1016/j.scienta.2013.11.015
Date Issue: 2014
Appears in Collections:Unicamp - Artigos e Outros Documentos

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