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Sensors 2003, 3(9), 340-349; doi:10.3390/s30900340

Monitoring of Milk Quality With Disposable Taste Sensor

1, 1, 1,* , 2, 3 and 4
1 School of Chemical Sciences, Universiti Sains Malaysia, 11800 Minden, Penang, Malaysia 2 Northern Malaysia Universiti College Of Engineering, Perlis, Malaysia 3 School of Distance Learning, Universiti Sains Malaysia, Penang, Malaysia 4 Universiti College Of Science & Technology Malaysia, Terengganu, Malaysia
* Author to whom correspondence should be addressed.
Received: 23 May 2003 / Accepted: 25 July 2003 / Published: 11 September 2003
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A disposable screen-printed multi channel taste sensor composed of several types of lipid as transducers and a computer as data analyzer could detect taste in a manner similar to human gustatory sensation. The disposable taste sensor was used to measure the electrical potential resulted from the interaction between lipid membranes and taste substances. In the present study, two types of packaged commercial milk, the ultra high temperature (UHT) and the pasteurized milk were tested. It was found that the disposable taste sensor is capable to discriminate reliably between fresh and spoiled milk and to follow the deterioration of the milk quality when it is stored at room temperature based on a pattern recognition principle namely Principle Component Analysis (PCA). This research could provide a new monitoring method ideally for simple and cheap decentralized testing for controlling the quality of milk, which may be of great use in the dairy industries.
Keywords: Disposable taste sensor; Screen-Printed; Milk quality control; Pattern recognition Disposable taste sensor; Screen-Printed; Milk quality control; Pattern recognition
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Sim, M.Y.M.; Shya, T.J.; Ahmad, M.N.; Shakaff, A.Y.M.; Othman, A.R.; Hitam, M.S. Monitoring of Milk Quality With Disposable Taste Sensor. Sensors 2003, 3, 340-349.

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