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Bibliographic record number: 487065

Journal

Authors: Hruškar, Mirjana; Major, Nikola; Krpan, Marina; Vahčić, Nada
Title: Simultaneous determination of fermented milk aroma compounds by a potentiometric sensor array
( Simultaneous determination of fermented milk aroma compounds by a potentiometric sensor array )
Source: Talanta (0039-9140) 82 (2010), 4; 1292-1297
Paper type: article
Keywords: electronic tongue; sensor array; probiotic fermented milk; aroma; ANN
( electronic tongue; sensor array; probiotic fermented milk; aroma; ANN )
Abstract:
The paper reports on the application of an electronic tongue for simultaneous determination of ethanol, acetaldehyde, diacetyl, lactic acid, acetic acid and citric acid content in probiotic fermented milk. The Astree electronic tongue by Alpha M.O.S. was employed. The sensor array comprised of seven nonspecific, cross-sensitive sensors developed especially for food analysis coupled with a reference Ag/AgCl electrode. Samples of plain, strawberry, apple-pear and forest-fruit flavored probiotic fermented milk were analyzed both by standard methods and by the potentiometric sensor array. The results obtained by these methods were used for the development of neural network models for rapid estimation of aroma compounds content in probiotic fermented milk. The highest correlation (0.967) and lowest standard deviation of error for the training (0.585), selection (0.503) and testing (0.571) subset was obtained for the estimation of ethanol content. The lowest correlation (0.669) was obtained for the estimation of acetaldehyde content. The model exhibited poor performance in average error and standard deviations of errors in all subsets which could be explained by low sensitivity of the sensor array to the compound. The obtained results indicate that the potentiometric electronic tongue coupled with artificial neural networks can be applied as a rapid method for the determination of aroma compounds in probiotic fermented milk.
Project / theme: 058-0580696-2808
Original language: eng
Citation databases: Current Contents Connect (CCC)
MEDLINE
Scopus
SCI-EXP, SSCI i/ili A&HCI
Science Citation Index Expanded (SCI-EXP) (sastavni dio Web of Science Core Collectiona)
Category: Znanstveni
Research fields:
Food processing technology
URL: http://www.sciencedirect.com/science?_ob=MImg&_imagekey=B6THP-50G6W5K-3-3&_cdi=5288&_user=3875467&_pii=S0039914010004947&_origin=browse&_coverDate=09%2F15%2F2010&_sk=999179995&view=c&wchp=dGLzVtb-zSkzS&md5=581c5d99b2888dcd1f06a5837fbf8e59&ie=/sdarticle.pdf
http://www.sciencedirect.com/science/article/pii/S0039914010004947
Broj citata:
Altmetric:
DOI: 10.1016/j.talanta.2010.06.048
URL cjelovitog rada:
Google Scholar: Simultaneous determination of fermented milk aroma compounds by a potentiometric sensor array
Contrib. to CROSBI by: nvahcic@pbf.hr (nvahcic@pbf.hr), 19. Lis. 2010. u 15:18 sati



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