IJCEA 2024 Vol.15(2): 16-20
doi: 10.18178/ijcea.2024.15.2.817
Determination of Tocopherols and Tocotrienol in Encapsulated Vitamin E Powder by NIR Spectroscopy
Laichheang Yort1, Saowaluk Rungchang 1,2, Riantong Singanusong 1,2, Chayanid Sringarm1, Pantaree Phudud1, Sujitra Funsueb3, Sila Kittiwachana3, Phumon Sookwong3, and Sudarat Jiamyangyuen1,2,4,*
1. Department of Ago-Industry, Faculty of Agriculture, Natural Resources, and Environments, Naresuan University, Phitsanulok, Thailand
2. Centre of Excellence in Fats and Oils, Faculty of Agriculture, Natural Resources, and Environments, Naresuan University, Phitsanulok, Thailand
3. Department of Chemistry, Faculty of Science, Chiang Mai University, Chiang Mai, Thailand
4. Division of Food Science and Technology, Faculty of Agro-Industry, Chiang Mai University, Chiang Mai, Thailand
Email: yortl61@nu.ac.th (L.Y.); saowalukr@nu.ac.th (S.R.); riantongs@nu.ac.th (R.S.); chayanids62@nu.ac.th (C.R.); pantareep63@nu.ac.th (P.P.); sujitra.funs@gmail.com (S.F.); sila.k@cmu.ac.th (S.K.); phumon.s@cmu.ac.th (P.S.);
sudarat.j@cmu.ac.th (S.J.)
*Corresponding author
Manuscript received April 22, 2024; revised May 17, 2024; accepted July 22, 2024; published August 13, 2024
Abstract—Vitamin E is necessary fat-soluble vitamin that is especially susceptible to oxidation, hence requiring the preservation techniques. Encapsulation performs a dual function by stabilizing vitamin E and altering its physical state from liquid to powder, so improving its practicality and enabling its quantification. NIR (Near Infrared Spectroscopy) is employed as an analytical tool for scanning and characterizing the unique spectral signature of the molecule contained within each sample. Additionally, the application of chemometric methods in the processing of NIR data allows for the recognition and quantification of substances present in the provided sample. The objective of this study is to investigate the effectiveness of utilizing NIR as a method for predicting the quantity of tocopherol (Toc) and tocotrienol (T3) in encapsulated vitamin E. The PLS (Partial Lease Square Regression) models developed using NIR exhibited statistical results in terms of prediction performance for Toc (RPD = 2.55, R
2 = 0.98, Q
2 = 0.84, RMSEE = 1.19, RMSEP = 2.43) and T3 (RPD = 3.75, R
2 = 0.98, Q
2 = 0.92, RMSEE = 5.74, RMSEP = 9.96). These are obvious indications of accuracy utilizing NIR from their high RPD, high R
2, and Q
2, coupled with low values of RMSEE and RMSEP. The established predictive models were subsequently utilized for determining the concentrations of Toc and T3 in the vitamin E encapsulating powder, consequently presenting its suitability for analytical purposes. The models have the potential to be utilized for broad testing in laboratories, as well as in the context of industrial processing.
Keywords—Tocopherol, Tocotrienol, NIR spectroscopy, chemometric
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Cite: Laichheang Yort, Saowaluk Rungchang, Riantong Singanusong, Chayanid Sringarm, Pantaree Phudud, Sujitra Funsueb, Sila Kittiwachana, Phumon Sookwong, and Sudarat Jiamyangyuen, "Determination of Tocopherols and Tocotrienol in Encapsulated Vitamin E Powder by NIR Spectroscopy," International Journal of Chemical Engineering and Applications vol. 15, no. 2, pp. 16-20, 2024.
