Application of FTIR spectroscopy coupled with chemometrics for authentication of Nigella sativa seed oil

The present study is intended to analyze the presence of grape seed oil (GSO) in Nigella sativa L. seed oil (NSO) using Fourier transform infrared (FTIR) spectroscopy and gas chromatography (GC). FTIR spectroscopy coupled with multivariate calibration of partial least square can quantify the levels...

Full description

Bibliographic Details
Main Authors: Ahmad Fadzlillah, Nurrulhidayah, Che Man, Yaakob, Al-Kahtani, Hassan Abdullah M., Rohman, Abdul
Format: Article
Language:English
Published: Hindawi Publishing Corporation 2011
Subjects:
Online Access:http://irep.iium.edu.my/71290/
http://irep.iium.edu.my/71290/
http://irep.iium.edu.my/71290/
http://irep.iium.edu.my/71290/1/Application%20of%20FTIR%20spectroscopy%20coupled%20with%20chemometrics%20for%20authentication%20of%20Nigella%20sativa%20seed%20oil.pdf
Description
Summary:The present study is intended to analyze the presence of grape seed oil (GSO) in Nigella sativa L. seed oil (NSO) using Fourier transform infrared (FTIR) spectroscopy and gas chromatography (GC). FTIR spectroscopy coupled with multivariate calibration of partial least square can quantify the levels of GSO in NSO at wavelength number of 1114–1074, 1734–1382 and 3005–3030 cm−1. The coefficient of correlation (R2) obtained for the relationship between actual (x-axis) and FTIR predicted (y-axis) values are 0.981. The errors in cross validation and in prediction are 2.34% (v/v) and 2.37% (v/v), respectively