African Journal of
Agricultural Research

  • Abbreviation: Afr. J. Agric. Res.
  • Language: English
  • ISSN: 1991-637X
  • DOI: 10.5897/AJAR
  • Start Year: 2006
  • Published Articles: 6140

Full Length Research Paper

Evaluation of the Papaya´s maturation degree by electrical impedance

Acáacio Figueiredo Neto
  • Acáacio Figueiredo Neto
  • Engineering Department, Federal University of the San Francisco, Valley State of Bahia, Brazil.
  • Google Scholar
Erlon Rabelo Cordeiro
  • Erlon Rabelo Cordeiro
  • Engineering Department, Federal University of the San Francisco, Valley State of Bahia, Brazil.
  • Google Scholar
Nelson Cárdenas Olivier
  • Nelson Cárdenas Olivier
  • Engineering Department, Federal University of the San Francisco, Valley State of Bahia, Brazil.
  • Google Scholar
Ligia Borges Marinho
  • Ligia Borges Marinho
  • Department of Agronomy, University of the State of Bahia, Juazeiro, Brazil.
  • Google Scholar
David Yuri Nunes Morais
  • David Yuri Nunes Morais
  • Engineering Department, Federal University of the San Francisco, Valley State of Bahia, Brazil.
  • Google Scholar
Helinando Pequeno de Oliveira
  • Helinando Pequeno de Oliveira
  • Engineering Department, Federal University of the San Francisco, Valley State of Bahia, Brazil.
  • Google Scholar


  •  Received: 23 April 2019
  •  Accepted: 06 June 2019
  •  Published: 11 July 2019

Abstract

The economic importance of Papaya for fruit producers reinforces the idea of alternative (non-invasive and low cost) strategies to measure fruit ripening. In this work, it has been evaluated the kinetics of ripening degree of Papaya based on alternative and non-invasive electrical impedance method that is compared with conventional techniques (mechanical assays, determination of total soluble solids and titratable acidity). It was observed that a single point measurement of real part of impedance (1 MHz) returned relevant information concerning the kinetics of Papaya ripening. These results were in agreement with the firmness of fruit (mechanical assays) and the corresponding variation in total soluble solids, providing advantages for identification of ripening degree and depreciation of Papayas.

Keywords: electrical impedance, Papaya, ripening degree, bulky resistance