A conductive polymer based electronic nose for early detection of Penicillium digitatum in post-harvest oranges

Autor(es)

Gruber, Jonas ^[1] ; Nascimento, Henry M. ^[2] ; Yamauchi, Elaine Y. ^[1] ; Li, Rosamaria W. C. ^[3] ; Esteves, Carlos H. A. ^[1] ; Rehder, Gustavo P. ^[4] ; Gaylarde, Christine C. ^[5] ; Shirakawa, Marcia A. ^[4]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Inst Quim, BR-05508000 Sao Paulo - Brazil

^[2] Soc Brasileira Microbiol, Sao Paulo - Brazil

^[3] Ctr Univ Estacio Radial Sao Paulo, Sao Paulo - Brazil

^[4] Univ Sao Paulo, Escola Politecn, Sao Paulo - Brazil

^[5] Univ Portsmouth, Portsmouth, Hants - England

• Tipo de documento: Artigo Científico
• Fonte: Materials Science & Engineering C-Materials for Biological Applications; v. 33, n. 5, p. 2766-2769, JUL 1 2013.
• Citações Web of Science: 23

Resumo

We describe the construction of an electronic nose, comprising four chemiresistive sensors formed by the deposition of thin conductive polymer films onto interdigitated electrodes, attached to a personal computer via a data acquisition board. This e-nose was used to detect biodeterioration of oranges colonized by Penicillium digitatum. Significant responses were obtained after only 24 h of incubation i.e. at an early stage of biodeterioration, enabling remedial measures to be taken in storage facilities and efficiently distinguishing between good and poor quality fruits. The instrument has a very low analysis time of 40 s. (C) 2013 Elsevier B.V. All rights reserved. (AU)

• Processo FAPESP: 11/51249-3 - Novos polímeros conjugados para células solares e narizes eletrônicos
• Beneficiário: Jonas Gruber
• Modalidade de apoio: Auxílio à Pesquisa - Regular