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Quantitative determination of fatty acid compositions in micro-encapsulated fish-oil supplements using Fourier transform infrared (FTIR) spectroscopy

Vongsvivut, Jitraporn, Heraud, Philip, Zhang, Wei, Kralovec, Jaroslav A., McNaughton, Don and Barrow, Colin J. 2012, Quantitative determination of fatty acid compositions in micro-encapsulated fish-oil supplements using Fourier transform infrared (FTIR) spectroscopy, Food Chemistry, vol. 135, no. 2, pp. 603-609.

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Title Quantitative determination of fatty acid compositions in micro-encapsulated fish-oil supplements using Fourier transform infrared (FTIR) spectroscopy
Author(s) Vongsvivut, Jitraporn
Heraud, Philip
Zhang, Wei
Kralovec, Jaroslav A.
McNaughton, Don
Barrow, Colin J.
Journal name Food Chemistry
Volume number 135
Issue number 2
Start page 603
End page 609
Total pages 7
Publisher Elsevier
Place of publication Amsterdam, The Netherlands
Publication date 2012-11-15
ISSN 0308-8146
Keyword(s) Attenuated total reflection Fourier transform infrared (ATR-FTIR) spectroscopy
Micro-encapsulated fish-oil supplement
Partial least square regression (PLSR) analysis
Polyunsaturated fatty acids (PUFAs)
Fourier transform infrared (ATR-FTIR) spectroscopy
Partial least square regression (PLSR) analysis --------------------------------------------------------------------------------
Summary The research describes a rapid method for the determination of fatty acid (FA) contents in a micro-encapsulated fish-oil (μEFO) supplement by using attenuated total reflection Fourier transform infrared (ATR-FTIR) spectroscopic technique and partial least square regression (PLSR) analysis. Using the ATR-FTIR technique, the μEFO powder samples can be directly analysed without any pre-treatment required, and our developed PLSR strategic approach based on the acquired spectral data led to production of a good linear calibration with R2 = 0.99. In addition, the subsequent predictions acquired from an independent validation set for the target FA compositions (i.e., total oil, total omega-3 fatty acids, EPA and DHA) were highly accurate when compared to the actual values obtained from standard GC-based technique, with plots between predicted versus actual values resulting in excellent linear fitting (R2 ⩾ 0.96) in all cases. The study therefore demonstrated not only the substantial advantage of the ATR-FTIR technique in terms of rapidness and cost effectiveness, but also its potential application as a rapid, potentially automated, online monitoring technique for the routine analysis of FA composition in industrial processes when used together with the multivariate.
Language eng
Field of Research 059999 Environmental Sciences not elsewhere classified
Socio Economic Objective 970105 Expanding Knowledge in the Environmental Sciences
HERDC Research category C1 Refereed article in a scholarly journal
Copyright notice ©2012, Elsevier
Persistent URL http://hdl.handle.net/10536/DRO/DU:30046976

Document type: Journal Article
Collection: School of Life and Environmental Sciences
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