New Spectrophotometric System to Segregate Tissues in Mandarin Fruit

Autor: Pedro Fito, Maria Victoria Traffano-Schiffo, R.J. Colom, Marta Castro-Giraldez
Rok vydání: 2017
Předmět:
Zdroj: RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
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ISSN: 1935-5149
1935-5130
DOI: 10.1007/s11947-017-2019-8
Popis: [EN] The knowledge of the electrical properties of the fruit tissues and their relation with the structural and compositional properties opens an endless number of opportunities in the development and design of industrial equipment for quality and process control. Nowadays, one of the main industrial issues is the detection of seeds inside thefruit,whichcouldbepossiblewithanelectricalstudyof each tissue as a first step of the development of nondestructive sensors. In this context, a deep study of the dielectric properties of mandarin fruit tissues, coupled with aw, Xw, pH, maturity index, cryo-SEM, and optical measurements, was performed. Dielectric properties were studied in radiofrequency and microwave ranges. ¿-, ß-, and ¿-dispersions and their relaxation parameters were obtained, described, and related to the chemical parameters. Finally, a tool, based on the relaxation dielectric constant in ¿-dispersion able to determine the moisture content of the mandarin fruit tissues, has been developed.
The authors acknowledge the financial support from: the Spanish Ministerio de Economia, Industria y Competitividad, Programa Estatal de I+ D+ i orientada a los Retos de la Sociedad AGL2016-80643-R, Agencia Estatal de Investigacion (AEI) and Fondo Europeo de Desarrollo Regional (FEDER). Maria Victoria Traffano-Schiffo wants to thank the FPI Predoctoral Program of the Universidad Politecnica de Valencia for its support. The authors would like to thank the Electronic Microscopy Service of the Universidad Politecnica de Valencia for its assistance in the use of cryo-SEM and also Multiscan Technologies S.L. for their support.
Databáze: OpenAIRE