A rapid method for the quantification of fatty acids in fats and oils with emphasis on trans fatty acids using fourier transform near infrared spectroscopy (FT-NIR)

  title={A rapid method for the quantification of fatty acids in fats and oils with emphasis on trans fatty acids using fourier transform near infrared spectroscopy (FT-NIR)},
  author={Hormoz Azizian and John K. G. Kramer},
A rapid method was developed for classifying and quantifying the FA composition of edible oils and fats using Fourier Transform near infrared spectroscopy (FT-NIR). The FT-NIR spectra showed unique fingerprints for saturated FA, cis and trans monounsaturated FA, and all n−6 and n−3 PUFA within TAG to permit qualitative and quantitative comparisons of fats and oils. The quantitative models were based on incorporating accurate GC data of the different fats and oils and FT-NIR spectral information… Expand
Rapid FT-NIR Analysis of Edible Oils for Total SFA, MUFA, PUFA, and Trans FA with Comparison to GC
Declarations of the total content of trans fatty acids (FA) and saturated FA (SFA) are mandatory on food labels in the US and Canada. Gas chromatography (GC) has been the method of choice for theExpand
Progression to Fatty Acid Profiling of Edible Fats and Oils Using Vibrational Spectroscopy
The contributions of vibrational spectroscopy (FT-mid-IR, FT-Raman, and FT-NIR) in the analyses of edible fats and oils have been reviewed. The major contributions of FT-mid-IR and FT-Raman have beenExpand
Application of Mid-Infrared Portable Spectrometer for the Rapid Determination of Trans-Fatty Acid Content in Lipid Extracts of Snack and Bakery Products.
A predictive model to quantify trans-fat concentrations in bakery and snacks products using a portable mid-infrared (MIR) spectrometer was developed and it was found that 25% of products labeled as zero trans- fat/serving did not comply with the maximum tolerance levels based on GC-FAME analysis. Expand
Evaluating the Transferability of FT-NIR Calibration Models for Fatty Acid Determination of Edible Fats and Oils Among Five Same-make Spectrometers Using Transmission or Transflection Modes with Different Pathlengths
Fourier transform near-infrared (FT-NIR) spectroscopy in conjunction with partial least squares 1 (PLS1) calibration models was previously reported to be an alternative method to GC for the rapidExpand
Rapid characterization and identification of fatty acids in margarines using horizontal attenuate total reflectance Fourier transform infrared spectroscopy (HATR-FTIR)
Fourier transform infrared spectroscopy (FTIR) with horizontal attenuated total reflectance (HATR) coupled to multivariate analysis was used to predict chemical composition, fatty acid profile,Expand
Rapid quantitation of fish oil fatty acids and their ethyl esters by FT‐NIR models
Consumption of fish oil and dietary supplements containing eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) has steadily increased because of their reported health benefits. A rapidExpand
Fourier Transform near Infrared Spectroscopy Prediction of trans and cis Fats in Ground Cereal Products at Different Resolutions
In this study, Fourier transform near infrared (FT-NIR) spectroscopy was investigated for use as a tool to determine the trans and cis fat contents in ground cereal products without the need forExpand
Evaluation of FT-NIR and ATR-FTIR spectroscopy techniques for determination of minor odd- and branched-chain saturated and trans unsaturated milk fatty acids.
Overall, ATR/FTIR resulted in better calibrations and provided more specific information for determination of minor milk fatty acids, except satisfactory predictions for trans-9 C18:1 and cis-9,trans-11 CLA. Expand
Factors influencing the fatty acid determination in fats and oils using Fourier transform near-infrared spectroscopy
Fourier transform near-infrared (FT-NIR) technology is matrix dependent and thus highly dependent on factors that influence the absorption spectra. Ignoring these factors during the development ofExpand
FT-midIR determination of fatty acid profiles, including trans fatty acids, in bakery products after focused microwave-assisted Soxhlet extraction
The FT-midIR method does not require post-extraction manipulation and gives information about the fatty acid profile in two min, and the results obtained were compared with those provided by the conventional method based on GC-MS. Expand


Simultaneous quantitative determination of isolated trans fatty acids and conjugated linoleic acids in oils and fats by chemometric analysis of the infrared profiles
Abstract Trans fatty acids and conjugated linoleic acids (CLA) in edible oils and fats have been for the first time quantitatively determined simultaneously using infrared spectroscopy andExpand
Overview of infrared methodologies for trans fat determination.
A novel Fourier transform infrared (FTIR) spectroscopic method that was developed for the rapid (5 min) quantitation of the total trans fatty acid levels in neat fats and oils measured as triacylglycerols (TAG) is discussed. Expand
Trans determination of edible oils by fourier transform near-infrared spectroscopy
A generalized partial-least-squares calibration for determination of the trans content of edible fats and oils by Fourier transform near-infrared (FT-NIR) spectroscopy using 8-mm disposable glassExpand
Determination of trans fatty acids in hydrogenated vegetable oils by attenuated total reflection infrared spectroscopy: Two limited collaborative studies
An attenuated total reflection infrared spectroscopy procedure was collaboratively studied among two sets of five laboratories for quantitating the total trans fatty acid levels in neat (withoutExpand
Rapid determination of cis and trans content, iodine value, and saponification number of edible oils by fourier transform near-infrared spectroscopy
Fourier transform near-infrared (FT-NIR) spectroscopy was evaluated as a means of simultaneously determining the cis and trans content, iodine value (IV), and saponification number of neat fats andExpand
The use of near-infrared reflectance spectroscopy in the prediction of the chemical composition of goose fatty liver.
It is suggested that the NIRS technique can be used to predict lipid content and the fatty acid composition of goose fatty livers, but calibration must be built on a larger number of samples to generate accurate predictions. Expand
Overview of methods for the determination of trans fatty acids by gas chromatography, silver-ion thin-layer chromatography, silver-ion liquid chromatography, and gas chromatography/mass spectrometry.
  • W. Ratnayake
  • Chemistry, Medicine
  • Journal of AOAC International
  • 2004
Current reports have demonstrated that improvements in separation are attainable with the use of 100 m columns, and more accurate trans fatty acid analyses can be obtained by coupling GC with either silver-nitrate thin-layer chromatography or silver- Nitrate liquid chromatography. Expand
Methods for analysis of conjugated linoleic acids and trans-18:1 isomers in dairy fats by using a combination of gas chromatography, silver-ion thin-layer chromatography/gas chromatography, and silver-ion liquid chromatography.
Improved techniques are further required to evaluate the CLA profile in monogastric animals fed commercial CLA preparations for CLA enrichment of animal products and to help design experimental diets to increase the level of the desired CLA isomers in dairy fats. Expand
Rapid evaluation of olive oil quality by NIR reflectance spectroscopy
NIR spectroscopy calibrations have been developed for a range of quality parameters in olive oil, including FFA, PV, polyphenol content, induction time, chlorophyll, and the major FA. A set of 216Expand
Identification of minor C18 triene and conjugated diene isomers in hydrogenated soybean oil and margarine by GC-MI-FT-IR spectroscopy.
A rapid method is described for separating and identifying fatty acid methyl ester (FAME) isomers of linolenic (octadecatrienoic, 18:3) acid and of conjugated octadecadienoic (18:2) acid, minor species found in hydrogenated soybean oil and margarine, by capillary gas chromatography-matrix isolation-Fourier transform-infrared spectroscopy. Expand