Artículo
Chemical-physical characterization of isolated plant cuticles subjected to low-dose γ-irradiation
Autor/es | Heredia Guerrero, José A.
Lara, Rocio de Dominguez, Eva Heredia, Antonio Benavente, Juana Benítez Jiménez, José Jesús |
Fecha de publicación | 2012 |
Fecha de depósito | 2018-03-07 |
Publicado en |
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Resumen | Isolated tomato fruit cuticles were subjected to low dose (80 Gy) γ-irradiation, as a potential methodology to prevent harvested fruit and vegetables spoilage. Both irradiated and non-irradiated samples have been ... Isolated tomato fruit cuticles were subjected to low dose (80 Gy) γ-irradiation, as a potential methodology to prevent harvested fruit and vegetables spoilage. Both irradiated and non-irradiated samples have been morphologically and chemically characterized by scanning electron (SEM), atomic force (AFM), attenuated total reflectance Fourier transform infrared (ATR-FTIR) and X-ray photoelectron (XPS) spectroscopies. Additionally, electrochemical measurements comprising membrane potential and diffusive permeability were carried out to detect modifications in transport properties of the cuticle as the fruit primary protective membrane. It has been found that low dose γ-irradiation causes some textural changes on the surface but no significant chemical modification. Texture modification is found to be due to a partial removal of outermost (epicuticular) waxes which is accompanied by mild changes of electrochemical parameters such as the membrane fixed charge, cation transport number and salt permeability. The modification of such parameters indicates a slight reduction of the barrier properties of the cuticle upon low dose γ-irradiation.  |
Cita | Heredia Guerrero, J.A., Lara, R.d., Dominguez, E., Heredia, A., Benavente, J. y Benítez Jiménez, J.J. (2012). Chemical-physical characterization of isolated plant cuticles subjected to low-dose γ-irradiation. Chemistry and Physics of Lipids, 165, 803-808. |
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