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

被引：46

作者：

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
]}

机构：

[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

来源：

MATERIALS SCIENCE & ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS | 2013年 / 33卷 / 05期

基金：

巴西圣保罗研究基金会;

关键词：

Electronic nose; Gas sensor; Conductive polymer; Oranges; Penicillium digitatum; Biodeterioration; ORGANIC-COMPOUNDS; GAS SENSOR;

D O I：

10.1016/j.msec.2013.02.043

中图分类号：

TB3 [工程材料学]; R318.08 [生物材料学];

学科分类号：

0805 ; 080501 ; 080502 ;

摘要：

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.

引用

页码：2766 / 2769

页数：4

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