FTIR Spectroscopic and Multivariate Analysis for Sample Discrimination and Adulteration Detection of Ulin Seed (Eusideroxylon Zwageri Teijsm. & Binn.) Oil

July 2026 in “ Pharmaciana ”

Indah Noor Rahmah Indah, Liling Triyasmono, Normaidah Normaidah, Febyanti Safitri, Hayatun Nisa

Studysummary This study found that the optimal characteristics for ulin seed oil extraction are fresh, mature, and resinous seeds, and that FTIR spectrophotometry with PCA can effectively detect adulteration of the oil, particularly at certain wavenumbers like 1745 cm⁻¹.

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