Authentication of lemongrass (Cymbopogon citratus) and citronella (Cimbopogon nardus) essential oils in fragrance products using FTIR spectroscopy combined with chemometrics

Salamah, Nina and Handaningrum, Karunia Nining and Guntarti, Any and Helal Uddin, A.B.M. and Ahda, Mustofa (2025) Authentication of lemongrass (Cymbopogon citratus) and citronella (Cimbopogon nardus) essential oils in fragrance products using FTIR spectroscopy combined with chemometrics. Malaysian Journal of Chemistry, 27 (4). pp. 198-206. ISSN 1511-2292 E-ISSN 2550-1658

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Abstract

Lemongrass plants are natural herbs that contain essential oils, which have been used as aromatic ingredients in the pharmaceutical, perfume, and culinary industries. As lemongrass oil is expensive to manufacture, they are frequently adulterated with other oils. Therefore, commercial oil products should undergo authentication analysis. The purpose of this study is to authenticate lemongrass essential oil in commercial products using Fourier Transform Infrared Spectroscopy (FTIR) and chemometrics. Lemongrass oil was extracted through steam and water distillation methods. These were used as raw essential oils in the reference product formulations. These formulations were analysed by FTIR spectroscopy, and the spectra obtained were processed quantitatively using the PLS method and qualitatively using the PCA method. The PLS model was the most optimal at 3383-2270 cm-1, with R2 values of 0.9985, 0.9999, and 0.9989, and an RMSEC value of 1.25 %. Discriminant analysis found that the commercial product contained citronella and lemongrass oils

Item Type:	Article (Journal)
Uncontrolled Keywords:	Authentication, lemongrass, essential oil, FTIR, Chemometrics
Subjects:	Q Science > QD Chemistry R Medicine > RM Therapeutics. Pharmacology R Medicine > RS Pharmacy and materia medica R Medicine > RS Pharmacy and materia medica > RS192 Materia Medica-Pharmaceutical Technology R Medicine > RS Pharmacy and materia medica > RS403 Materia Medica-Pharmaceutical Chemistry
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Pharmacy > Department of Pharmaceutical Chemistry
Depositing User:	Dr. A. B. M. Helal Uddin
Date Deposited:	15 Oct 2025 15:43
Last Modified:	15 Oct 2025 15:43
URI:	http://irep.iium.edu.my/id/eprint/123732

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