Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.14/17616
Título: Use of UV-C postharvest treatment for extending fresh whole tomato (Solanum lycopersicum, cv. Zinac) shelf-life
Autor: Pinheiro, Joaquina
Alegria, Carla
Abreu, Marta
Gonçalves, Elsa M.
Silva, Cristina L. M.
Palavras-chave: UV-C radiation
Tomato
Quality
Storage
Microbial load
Data: 2015
Citação: PINHEIRO, Joaquina; ALEGRIA, Carla; ABREU, Marta; GONÇALVES, Elsa M.; SILVA, Cristina L. M. - Use of UV-C postharvest treatment for extending fresh whole tomato (Solanum lycopersicum, cv. Zinac) shelf-life. Journal of Food Science and Technology. ISSN 1365-2621. (2015) vol. 52, nº8, p. 5066-5074
Resumo: The effect of UV-C treatments (0.32, 0.97, 2.56, 4.16 and 4.83 kJ.m−2 at 254 nm) on the physical-chemical properties [colour, texture, total phenolic content (TPC), weight loss (WL)], and mesophylic counts of whole tomato, was evaluated during 15 days at 10 °C. During storage, the Ctr samples acquired faster red colour than all UV-C samples (higher a* and lower °h values). Comparing texture of Ctr and UV-C samples at 15th storage day, an increase of 9 and 8 % on firmness of treated samples at low UV-C intensities (0.32 and 0.97 kJ.m−2, respectively) was observed. At the end of the storage, Ctr samples showed ca. 4 Log10 of mesophylic load, and the samples treated at 0.97 and 4.83 kJ.m−2 revealed the lowest microbial load (1.9 and 3.2 Log10, respectively). These results indicate that UV-C radiation, at an appropriate dose, combined with low storage temperature (10 °C) are an effective method to preserve the postharvest life of tomato, without adversely affecting quality parameters.
Peer review: yes
URI: http://hdl.handle.net/10400.14/17616
Aparece nas colecções:CBQF - Artigos em revistas internacionais com Arbitragem / Papers in international journals with Peer-review

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