Combination of metal oxide semiconductor gas sensor array and solid‐phase microextraction gas chromatography–mass spectrometry for odour classification of brewed coffee

• Published in: Flavour and fragrance journal Vol. 38; no. 6; pp. 451 - 463
• Main Authors: Hardoyono, Fajar, Windhani, Kikin
• Format: Journal Article
• Language: English
• Published: Chichester Wiley Subscription Services, Inc 01.11.2023
• Subjects: Accuracy; Acetic acid; Chromatography; Classification; Cluster analysis; Coffee; Cost analysis; Data analysis; Datasets; flavor; furfuryl alcohol; Gas chromatography; gas chromatography-mass spectrometry; Gas sensors; Kernels; Mass spectrometry; Mass spectroscopy; Metal oxide semiconductors; Odor; Odors; Organic compounds; phenol; Phenols; Polynomials; Portability; portable equipment; principal component analysis; Principal components analysis; Radial basis function; Scientific imaging; semiconductors; Sensor arrays; Sensors; Solid phase methods; solid phase microextraction; Support vector machines; temperature; Training; VOCs; Volatile organic compounds

Odour analysis of coffee using low‐cost and portable instruments in coffee shops, restaurants and bars is essential to keep the loyalty of coffee consumers. This paper aimed to analyse the performance of a gas sensor array for odour classification of brewed coffee. Five grams of ground coffee sample...