Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.1/2895
Título: Effect of Coating application on the gas flow and p. digitatum growth in lemon cv. ‘verna’
Autor: Carvalho, Catarina P.
Ortolá, Maria D.
Fito, Pedro
Vega-Gálvez, Antonio
Duarte, Amílcar
Palavras-chave: Citric
Decay
Stomata
Water diffusivity
Water wax
Data: 2010
Editora: Universidade do Algarve
Resumo: All citrus fruits are waxed during postharvest, independent of their final destination for reducing the weight loss. Any physical barrier applied on the surface can have a significant influence on the various metabolic pathways acting on the fruit-environment system. The effect of applying a wax coating on the percentage of blocked stomata and the diffusivity of water vapor was studied in lemon fruits cv. ‘Verna’, healthy and inoculated with P. digitatum. In addition, the growth of P. digitatum was modelled with the Gompertz equation modified to three parameters for non-linear regression. The analysis of the percentage of blocked stomata based on the respiratory gas exchange in the healthy coated fruit, suggests that the obstruction is transient. The coating application significantly reduced water vapor diffusivity as a result of the reduction in the gas permeability of fruit peel, being this parameter affected by the mould development in the skin fruit surface. Wax coating significantly delayed the lag phase and reduced the rate of relative growth of P. digitatum.
Descrição: Proceedings of the International Conference “Environmentally friendly and safe technologies for quality of fruit and vegetables”, held in Universidade do Algarve, Faro,Portugal, on January 14-16, 2009. This Conference was a join activity with COST Action 924
Peer review: yes
URI: http://hdl.handle.net/10400.1/2895
Aparece nas colecções:UED01-Edições UAlg

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