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All Journal Journal Pharmasci (Journal of Pharmacy and Science)
Asmiyenti Djaliasrin Djalil
Muhammadiyah University Purwokerto
Biochemistry, Genetics & Molecular Biology Chemistry Health Professions Immunology & microbiology Medicine & Pharmacology

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Authentication of Turmeric Powder from Sudan I, QuinolineYellow and Methanyl Yellow by FTIR Method Combined With Chemometric: Autentikasi Serbuk Kunyit dari Sudan I, Kuning Quinoline dan Kuning Metanil dengan Metode FTIR yang Dikombinasi Dengan Kemometrik Wiranti Sri Rahayu; Herliningsih; Asmiyenti Djaliasrin Djalil
Journal Pharmasci (Journal of Pharmacy and Science) Vol. 10 No. 1 (2025): Journal Pharmasci (Journal of Pharmacy and Science)
Publisher : Akademi Farmasi Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53342/pharmasci.v10i1.486

Abstract

Turmeric is an essential commodity widely used in the food, drug, and cosmetic industries. The high demand for turmeric leads to many possibilities of adulterating turmeric powder with synthetic dyes. This study aims to develop an ATR-FTIR analysis method combined with chemometrics to authenticate turmeric powder adulterated with synthetic dyes such as sudan I, quinoline yellow, and methanyl yellow. Turmeric powder is placed above the diamond crystal in ATR. Spectrum scanning is performed at wavenumbers 4000-400 cm-1. The spectrum obtained is then analyzed by chemometrics, namely Principal Component Analysis (PCA) and Partial Least Square (PLS). PCA score plot shows turmeric powder can be distinguished from 3 synthetic colors: sudan 1, quinoline yellow and methanyl yellow.  The results of analysis with PLS provide good calibration with an R2 value of 0.863-0.934 and RMSE value of 6.149-13.791 at wavenumbers 1581.63-871.82 cm-1. The combination of FTIR with chemometrics can be used to authenticate turmeric powder from adulterants in the form of sudan I, quinoline yellow, and methanyl yellow
Co-Authors Herliningsih, Herliningsih Wiranti Sri Rahayu