title: Application of multivariate chemometric techniques for simultaneous determination of five parameters of cottonseed oil by single bounce attenuated total reflectance Fourier transform infrared spectroscopy.
abstract: Single bounce attenuated total reflectance (SB-ATR) Fourier transform infrared (FTIR) spectroscopy in conjunction with chemometrics was used for accurate determination of free fatty acid (FFA), peroxide value (PV), iodine value (IV), conjugated diene (CD) and conjugated triene (CT) of cottonseed oil (CSO) during potato chips frying. Partial least square (PLS), stepwise multiple linear regression (SMLR), principal component regression (PCR) and simple Beer׳s law (SBL) were applied to develop the calibrations for simultaneous evaluation of five stated parameters of cottonseed oil (CSO) during frying of French frozen potato chips at 170°C. Good regression coefficients (R(2)) were achieved for FFA, PV, IV, CD and CT with value of >0.992 by PLS, SMLR, PCR, and SBL. Root mean square error of prediction (RMSEP) was found to be less than 1.95% for all determinations. Result of the study indicated that SB-ATR FTIR in combination with multivariate chemometrics could be used for accurate and simultaneous determination of different parameters during the frying process without using any toxic organic solvent.
authors.affiliation: Department of Chemistry, Faculty of Science, Selcuk University, 42075 Konya, Turkey; National Centre of Excellence in Analytical Chemistry, University of Sindh, Jamshoro 76080, Pakistan; Government Muslim Science Degree College Hyderabad, Education and Literacy Department, Sindh, Pakistan. Electronic address: younistalpur@gmail.com.
authors.forename: M Younis
authors.initials: MY
authors.lastname: Talpur
authors.affiliation: Department of Chemistry, Faculty of Science, Selcuk University, 42075 Konya, Turkey; Department of Chemistry, Faculty of Science, Necmettin Erbakan University, 42090 Konya, Turkey.
authors.forename: Huseyin
authors.initials: H
authors.lastname: Kara
authors.affiliation: National Centre of Excellence in Analytical Chemistry, University of Sindh, Jamshoro 76080, Pakistan.
authors.forename: S T H
authors.initials: ST
authors.lastname: Sherazi
authors.affiliation: Department of Chemistry, Faculty of Science, Selcuk University, 42075 Konya, Turkey.
authors.forename: H Filiz
authors.initials: HF
authors.lastname: Ayyildiz
authors.affiliation: Department of Chemistry, Faculty of Science, Selcuk University, 42075 Konya, Turkey.
authors.forename: Mustafa
authors.initials: M
authors.lastname: Topkafa
authors.affiliation: Department of Chemistry, Faculty of Science, Selcuk University, 42075 Konya, Turkey; Department of Chemistry, Faculty of Science, University of Karamanoglu Mehmetbey, 70010 Karaman, Turkey.
authors.forename: Fatma Nur
authors.initials: FN
authors.lastname: Arslan
authors.affiliation: Department of Chemistry, Faculty of Science, Selcuk University, 42075 Konya, Turkey; Dr. M. A. Kazi Institute of Chemistry, University of Sindh Jamshoro, Pakistan.
authors.forename: Saba
authors.initials: S
authors.lastname: Naz
authors.affiliation: Department of Chemistry, Faculty of Science, Selcuk University, 42075 Konya, Turkey.
authors.forename: Fatih
authors.initials: F
authors.lastname: Durmaz
authors.affiliation: National Centre of Excellence in Analytical Chemistry, University of Sindh, Jamshoro 76080, Pakistan.
authors.lastname: Sirajuddin
mesh_terms: D002138:Calibration; D002623:Chemistry Techniques, Analytical / Q000379:methods*; D003369:Cottonseed Oil / Q000737:chemistry*; D005230:Fatty Acids, Nonesterified / Q000737:chemistry; D005504:Food Analysis / Q000379:methods*; D005511:Food Handling; D007455:Iodine / Q000737:chemistry; D016018:Least-Squares Analysis; D016014:Linear Models; D015233:Models, Statistical; D015999:Multivariate Analysis; D010545:Peroxides / Q000737:chemistry; D011198:Solanum tuberosum; D012997:Solvents / Q000737:chemistry; D017550:Spectroscopy, Fourier Transform Infrared / Q000379:methods*
chemical_list: D003369:Cottonseed Oil; D005230:Fatty Acids, Nonesterified; D010545:Peroxides; D012997:Solvents; D007455:Iodine
keywords: Cottonseed oil; Frying procedure; Multivariate calibration methods; Oxidation parameters; SB-ATR FTIR