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Use of the smart tongue to monitor mold growth and discriminate between four mold species grown in liquid media.
- Source :
-
Analytica chimica acta [Anal Chim Acta] 2011 Apr 01; Vol. 690 (2), pp. 240-7. Date of Electronic Publication: 2011 Feb 12. - Publication Year :
- 2011
-
Abstract
- A novel voltammetric electronic tongue, smart tongue, was employed to monitor the growth of mold and to differentiate between four types of mold grown in liquid medium. Principal component analysis (PCA) was used to extract the relevant information obtained by the smart tongue. Reference growth curves were based on measurements of dry weight and pH. The growth detected by the smart tongue was basically consistent with that observed by the measurement of dry weight and pH. The optimal combinations of electrodes and frequencies for monitoring growth were as follows: for Aspergillus, both the Pt and Au electrodes at 1 Hz, 10 Hz and 100 Hz; for Penicillium, the Pt and W electrodes at 100 Hz; for Mucor, the Pt, Pd and W electrodes at the three frequency segments; for Rhizopus, the Pd, Ti and Ag electrodes at the three frequency segments. The Ag electrode at 10 Hz or 100 Hz frequency could differentiate well between the four types of mold for culturing 6 h in the liquid media. Therefore, the smart tongue has a promising future as a modern rapid analytical technology for the real time detection of the growth of mold and for the classification model of mold.<br /> (Copyright © 2011 Elsevier B.V. All rights reserved.)
- Subjects :
- Aspergillus growth & development
Aspergillus isolation & purification
Biosensing Techniques methods
Electrochemical Techniques instrumentation
Electrodes
Fungi growth & development
Gold chemistry
Hydrogen-Ion Concentration
Lead chemistry
Mucor growth & development
Mucor isolation & purification
Penicillium growth & development
Penicillium isolation & purification
Platinum chemistry
Principal Component Analysis
Rhizopus growth & development
Rhizopus isolation & purification
Silver chemistry
Tungsten chemistry
Culture Media chemistry
Electrochemical Techniques methods
Electronics
Fungi isolation & purification
Subjects
Details
- Language :
- English
- ISSN :
- 1873-4324
- Volume :
- 690
- Issue :
- 2
- Database :
- MEDLINE
- Journal :
- Analytica chimica acta
- Publication Type :
- Academic Journal
- Accession number :
- 21435482
- Full Text :
- https://doi.org/10.1016/j.aca.2011.02.013