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- W4224247774 abstract "Light emitting diode induced fluorescence spectroscopy is utilized for coffee classification. Seven different types of coffee beans including Brazilian, Mandheling, Italy, Jamaica, Columbia, Cuba, and China can be discriminated respectively. This technique is also developed to measure concentrations of coffee with cream or sugar. The percentage of cream and sugar in the mixture changes from 0% to 90%, respectively. The principal component analysis and linear discriminant analysis method are used to analyze and process the spectral data. The evaluated values agree well with real concentrations. Concentrations of coffee mixture with three variables are also measured to further verify the feasibility of this method for practical applications. • A compact LED based fluorescence spectroscopy system was built up. • The LED-IFS technique was developed for coffee qualitative and quantitative analysis. • Potential application for real instant coffee detection was verified." @default.
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- W4224247774 date "2022-08-01" @default.
- W4224247774 modified "2023-10-16" @default.
- W4224247774 title "Preliminary study on coffee type identification and coffee mixture analysis by light emitting diode induced fluorescence spectroscopy" @default.
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- W4224247774 doi "https://doi.org/10.1016/j.foodcont.2022.109044" @default.
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