Penalized discriminant analysis for the detection of wild-grown and cultivated Ganoderma lucidum using Fourier transform infrared spectroscopy

2016 ◽  
Vol 159 ◽  
pp. 68-77 ◽  
Author(s):  
Ying Zhu ◽  
Tuck Lee Tan
Keyword(s):  
Fourier Transform ◽  
Infrared Spectroscopy ◽  
Discriminant Analysis ◽  
Fourier Transform Infrared Spectroscopy ◽  
Ganoderma Lucidum ◽  
Fourier Transform Infrared ◽  
Penalized Discriminant Analysis

Discriminant Analysis and Cluster Analysis of Biodiesel Fuel Blends Based on Fourier Transform Infrared Spectroscopy (FTIR)

2016 ◽  
Vol 30 (6) ◽  
pp. 4905-4915 ◽  
Author(s):  
Victor Hugo J. M. dos Santos ◽  
Eduardo Do Canto Bruzza ◽  
Jeane E. de Lima ◽  
Rogerio V. Lourega ◽  
Luiz F. Rodrigues
Keyword(s):  
Cluster Analysis ◽  
Fourier Transform ◽  
Infrared Spectroscopy ◽  
Discriminant Analysis ◽  
Fourier Transform Infrared Spectroscopy ◽  
Fourier Transform Infrared ◽  
Biodiesel Fuel ◽  
Fuel Blends ◽  
And Cluster Analysis

scholarly journals Fourier Transform Infrared Spectroscopy (FTIR) coupled with multivariate calibration and discriminant analysis for authentication of extra virgin olive oil from rambutan seed fat

Food Research ◽  
2019 ◽  
pp. 727-733 ◽  
Author(s):  
Nurwahidah A.T. ◽  
Rumiyati ◽  
Riyanto S. ◽  
Nurrulhidayah, A.F. ◽  
Betania K. ◽  
...  
Keyword(s):  
Fourier Transform ◽  
Infrared Spectroscopy ◽  
Discriminant Analysis ◽  
Olive Oil ◽  
Fourier Transform Infrared Spectroscopy ◽  
Prediction Models ◽  
Multivariate Calibration ◽  
Virgin Olive Oil ◽  
Fourier Transform Infrared ◽  
Extra Virgin Olive Oil

The adulteration practice in pharmaceutical industries, especially in fats and oils used as a vehicle in some pharmaceutical products must be identified to assure its quality. In this study, Fourier Transform Infrared Spectroscopy (FTIR) in combination with chemometrics techniques of multivariate calibration and discriminant analysis (DA) were used for the authentication of extra virgin olive oil (EVOO) from rambutan seed fat (RSF). EVOO, RSF, and the mixture of EVOO-RSF were scanned using FTIR spectrophotometer at mid-infrared region (4000-650 cm-1 ). The results showed that normal FTIR spectra at wavenumbers region of 1446.8-1409.7 cm-1 and 2368.6-1769.9 cm-1 combined with principle component regression (PCR) offered the best quantitative model for prediction of RSF levels in EVOO. The coefficient of determination (R2 ) values obtained for the relationship between actual values of RSF and predicted values were of 0.9955 and 0.9915 in calibration and prediction models, respectively. The errors in calibration and prediction models were relatively low, accounting of 2.17% and 3.68%, respectively. The classification model between unadulterated or pure EVOO and adulterated EVOO with RSF was successfully carried out using DA at wavenumbers of 3100-1000 cm-1 without any samples mistakenly classified into the wrong group. FTIR spectroscopy in combination with chemometrics offered effective tools for authentication of EVOO against the adulteration practice.

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