Electronic nose and Alicyclobacillus spp. spoilage of fruit juices: An emerging diagnostic tool

被引：92

作者：

Gobbi, E. ^{[1
,2
]}

Falasconi, M. ^{[3
,4
]}

Concina, I. ^{[3
,4
]}

Mantero, G. ^{[1
]}

Bianchi, F. ^{[5
]}

Mattarozzi, M. ^{[5
]}

Musci, M. ^{[5
]}

Sberveglieri, G. ^{[3
,4
]}

机构：

[1] Biodivers SPA, Brescia, Italy

[2] Univ Udine, Dipartimento Biol & Protez Piante, I-33100 Udine, Italy

[3] Univ Brescia, Sensor Lab, Dipartimento Chim & Fis Ingn & Mat, I-25123 Brescia, Italy

[4] CNR IDASC, I-25123 Brescia, Italy

[5] Univ Parma, Dipartimento Chim Gen & Inorgan, I-43100 Parma, Italy

来源：

FOOD CONTROL | 2010年 / 21卷 / 10期

关键词：

Fruit juice; Microbiological spoilage; Alicyclobacillus; Volatile compounds; Electronic nose; VOLATILE COMPOUNDS; APPLE JUICE; ACIDOTERRESTRIS; GROWTH; METABOLITES; STRAINS; DIFFERENTIATION; MICROORGANISMS; IDENTIFICATION; ENUMERATION;

D O I：

10.1016/j.foodcont.2010.04.011

中图分类号：

TS2 [食品工业];

学科分类号：

0832 ;

摘要：

The application of an electronic nose equipped with a Metal Oxide Semiconductor sensor array for the detection of Alicyclobacillus acidoterrestris and A. acidocaldarius artificially inoculated in peach, orange and apple fruit juices is described in this study. Overall the system was able to detect the presence of Alicyclobacillus spp. in all the tested fruit juices at 24 h from inoculation. The electronic nose could detect bacterial concentration as low as <10(2) colony forming unit/ml and it was also able to classify bacterial contamination independently of the Alicyclobacillus species. The gas chromatography-mass spectrometry characterization of the volatile profile of orange juices confirmed the existence of quantitatively different patterns between contaminated and uncontaminated samples. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：1374 / 1382

页数：9

共 48 条

[1] Determination of guaiacol produced by Alicyclobacillus acidoterrestris in apple juice by using HPLC and spectrophotometric methods, and mathematical modeling of guaiacol production [J].