A qualitative analysis of different kinds of green leaves brands employed in a popular Argentinean beveragematewas performed with an electronic nose (EN) based on quartz microbalance sensors. We employed a LibraNose from Technobiochip, which contains eight sensors. Two types of odours are analysed for each sample corresponding to short- and long-term periods after the opening of the package. Principal component analysis (PCA) is applied to the sensor responses and it is possible to distinguish between different brands through their locus in the plane defined by the first two PCA components. Preliminary results confirm the usefulness of this EN for classification and future quality control purposes.
Characterization of different brands used in a typical argentinean beverage mate by means of an e-nose
2002
Abstract
A qualitative analysis of different kinds of green leaves brands employed in a popular Argentinean beveragematewas performed with an electronic nose (EN) based on quartz microbalance sensors. We employed a LibraNose from Technobiochip, which contains eight sensors. Two types of odours are analysed for each sample corresponding to short- and long-term periods after the opening of the package. Principal component analysis (PCA) is applied to the sensor responses and it is possible to distinguish between different brands through their locus in the plane defined by the first two PCA components. Preliminary results confirm the usefulness of this EN for classification and future quality control purposes.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
