期刊
SENSORS AND ACTUATORS B-CHEMICAL
卷 207, 期 -, 页码 1114-1120出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2014.10.049
关键词
Chocolate; Electronic Nose; Aroma; Gold nanoparticles; Peptides; Porphyrins; Gas sensors; Food quality control
资金
- Puratos Group company
Analysis of chocolate flavour through gas sensor arrays has been carried out. Two different set of sensors have been tested to assess the performance of the different sensor arrays: metallo porphyrins and gold nanoparticles peptide coated quartz crystal microbalances. Two series of chocolate samples containing differently formulated products (dark, white and milk) have been tested: the former made of samples obtained under standard process conditions, the second including samples added with some volatile compounds associated to degradation processes and/or low quality raw materials to obtain artificially off-flavoured samples. Analysis with both gas sensor arrays resulted in a good discrimination between standard and artificially off flavoured chocolate samples. The best performance was obtained using the gold nanoparticles peptide sensors with over 90% of correctly assigned samples. (C) 2014 Elsevier B.V. All rights reserved.
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