Gas sensors development using supercritical fluid technology to detect the ripeness of bananas

被引：33

作者：

Steffens, C. ^{[1
,2
]}

Franceschi, E. ^{[1
]}

Corazza, F. C. ^{[1
]}

Herrmann, P. S. P., Jr. ^{[2
]}

Oliveira, J. Vladimir ^{[1
]}

机构：

[1] Univ Reg Integrada Alto Uruguai & Missoes, Dept Food Engn, BR-99700000 Erechim, RS, Brazil

[2] Embrapa Agr Instrumentat, BR-13560970 Sao Carlos, SP, Brazil

来源：

JOURNAL OF FOOD ENGINEERING | 2010年 / 101卷 / 04期

关键词：

Electronic-nose; Gas sensor; Banana; Volatile compounds; PANI; ELECTRONIC NOSE; RAPID EXPANSION; CARBON-DIOXIDE; FILMS; POLYPYRROLE; POLYANILINE; DOPANT; FOOD;

D O I：

10.1016/j.jfoodeng.2010.07.021

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

This work reports the development of gas sensors with three different techniques applied to sensor coating with conducting polymer polyaniline (PANI) by: in situ polymerization, RESS (rapid expansion of supercritical solutions) of polyaniline doped with dodecyl benzene sulphonic acid (DBSA) in pressurized fluid, and precipitation. The two latter sensors were obtained through micro/nanoparticle deposition onto interdigitated line patterns of graphite deposited on tracing paper using the supercritical fluid technology. It is shown that sensors produced exhibited different behavior with regard to moisture and also to vapor-phase atmosphere of acetone, ethanol, n-hexane and ethyl acetate. Results demonstrate that sensors produced by precipitation and RESS seem to be promising to detect the ripeness of banana thus indicating a potential technology to be further explored towards developing accurate methods for monitoring the maturation of fruits. (c) 2010 Elsevier Ltd. All rights reserved.

引用

页码：365 / 369

页数：5

共 27 条

[1]

ABDULLAH H, 1990, BANANAS FRUITS DEV P, P45

[2]

*AGRIANUAL, 2008, AN AGR BRAS, P378

[3] Polyaniline and its substituted derivatives as sensor for aliphatic alcohols [J].

Athawale, AA ;

Kulkarni, MV .

SENSORS AND ACTUATORS B-CHEMICAL, 2000, 67 (1-2) :173-177

[4] In-situ deposited thin films of polypyrrole: Conformational changes induced by variation of dopant and substrate surface [J].

Avlyanov, JK ;

Kuhn, HH ;

Josefowicz, JY ;

MacDiarmid, AG .

SYNTHETIC METALS, 1997, 84 (1-3) :153-154

[5]

BOAS EVB, 2001, SERIE FRUTAS BRASIL, V16, P15

[6]

CHO S, 1991, NONDESTRUCTIVE RIPEN

[7] Sensors using octaaniline for volatile organic compounds [J].

Feng, J ;

MacDiarmid, AG .

SYNTHETIC METALS, 1999, 102 (1-3) :1304-1305

[8] Precipitation of β-carotene and PHBV and co-precipitation from SEDS technique using supercritical CO2 [J].

Franceschi, Elton ;

De Cesaro, Alana M. ;

Feiten, Mirian ;

Ferreira, Sandra R. S. ;

Dariva, Claudio ;

Kunita, Marcos H. ;

Rubira, Adley F. ;

Muniz, Edvani C. ;

Corazza, Marcos L. ;

Oliveira, J. Vladimir .

JOURNAL OF SUPERCRITICAL FLUIDS, 2008, 47 (02) :259-269

[9] Phase behavior and process parameters effects on the characteristics of precipitated theophylline using carbon dioxide as antisolvent [J].

Franceschi, Elton ;

Kunita, Marcos H. ;

Tres, Marcus V. ;

Rubira, Adley F. ;

Muniz, Edvani C. ;

Corazza, Marcos L. ;

Dariva, Claudio ;

Ferreira, Sandra R. S. ;

Oliveira, J. Vladimir .

JOURNAL OF SUPERCRITICAL FLUIDS, 2008, 44 (01) :8-20

[10] Thin fluoropolymer films and nanoparticle coatings from the rapid expansion of supercritical carbon dioxide solutions with electrostatic collection [J].

Fulton, JL ;

Deverman, GS ;

Yonker, CR ;

Grate, JW ;

De Young, J ;

McClain, JB .

POLYMER, 2003, 44 (13) :3627-3632

← 1 2 3 →