Quantitative determination of fatty acid compositions in micro-encapsulated fish-oil supplements using Fourier transform infrared (FTIR) spectroscopy
Data(s) |
15/11/2012
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Resumo |
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 R<sup><sub>2</sub></sup> = 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 <i>versus</i> actual values resulting in excellent linear fitting (R<sup>2</sup> ⩾ 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. |
Identificador | |
Idioma(s) |
eng |
Publicador |
Elsevier |
Relação |
http://dro.deakin.edu.au/eserv/DU:30046976/vongsvivut-quantitativedetermination-2012.pdf http://dx.doi.org/10.1016/j.foodchem.2012.05.012 |
Direitos |
2012, Elsevier |
Palavras-Chave | #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 -------------------------------------------------------------------------------- |
Tipo |
Journal Article |