Irnawati, Irnawati and Rohman, Abdul and Yamin, Yamin and Ahmad Fadzillah, Nurrulhidayah and Azmi, Aida Azrina and Nurlatifah, Nurlatifah and Windarsih, Anjar and Susidarti, Ratna Asmah and Ruslin, Ruslin
(2024)
Moringa oleifera seed oils: Physico-chemical characterization and its authentication using FTIR spectroscopy and chemometrics.
Case Studies in Chemical and Environmental Engineering, 10.
pp. 1-8.
E-ISSN 2666-0164
Abstract
Study on fatty acid compositions and authentication of Moringa oleifera seed oil (MOSO) is essential. MOSO from
different regions had acid values of 0.32 ± 0.01 mg KOH/g, saponification values of 182.50 ± 5.95 mg KOH/g,
iodine values of 78.30 ± 4.24 g I2/100 g, and peroxide values of 1.12 ± 0.02 meq O2/kg MOSO. The dominant
fatty acids of MOSO were oleic acid (68.31–76.89 %) and palmitic acid (6.17–8.27 %), respectively. The che
mometrics of partial least square-discriminant analysis (PLS-DA) could classify of MOSO using fatty acid com
positions as variable into two distinct groups using two discriminant components in which the first and second
components could describe 62.5 % and 18.7 %, respectively. Partial least square (PLS) could predict soybean oil
levels as adulterant at combined wavenumbers region of 2935-2830 and 1800-710 cm− 1
. The coefficient of
determination (R2
) in calibration and validation models were of 0.9971 and 0.9961, with root mean square error
of calibration (RMSEC) and root mean square error of prediction (RMSEP) of 1.67 % and 1.93 %, respectively. In
summary, MOSO contains good physico-chemical properties including fatty acid compositions which are
beneficial for its application in pharmaceutical, nutraceutical, and cosmetic products in the future. We concluded
that the FTIR spectroscopy and chemometrics are promising tools for the authentication study and quality
control of MOSO.
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