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Title: An electronic nose based on coated piezoelectric quartz crystals to certify ewes' cheese and to discriminate between cheese varieties
Author: Pais, Vânia F.
Oliveira, João A. B. P.
Gomes, Maria Teresa S. R.
Keywords: Electronic nose
Piezoelectric quartz crystal
Cheese discrimination
Ewe’s cheese
Issue Date: 2012
Publisher: MDPI
Abstract: An electronic nose based on coated piezoelectric quartz crystals was used to distinguish cheese made from ewes' milk, and to distinguish cheese varieties. Two sensors coated with Nafion and Carbowax could certify half the ewes' cheese samples, exclude 32 cheeses made from cow's milk and to classify half of the ewes' cheese samples as possibly authentic. Two other sensors, coated with polyvinylpyrrolidone and triethanolamine clearly distinguished between Flamengo, Brie, Gruyère and Mozzarella cheeses. Brie cheeses were further separated according to their origin, and Mozzarella grated cheese also appeared clearly separated from non-grated Mozzarella.
Peer review: yes
DOI: 10.3390/s120201422
ISSN: 1424-8220
Appears in Collections:CESAM - Artigos
DQ - Artigos

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