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Preparation of Reference Material for Trigonelline Determination Inside of Green Coffee Beans Using HPTLC
Jurnal ILMU DASAR
Preliminary study of preparation reference material for trigonelline determination in green coffee beans have been performed by HPTLC method. Physical characterization performed on green coffee beans include the determination of moisture content, ash content and metal content. Water content values obtained on average 6.4% (%RSD 4.8) and ash content 3.9% (%RSD 16.2). Metal determination (Cu, Zn, Fe) with atomic absorption spectrometry method found Cu 9.4 (mg/kg), Zn 12,0 (mg/kg) and Fe 64.0 (mgdoi:10.19184/jid.v14i1.482 fatcat:enzlojyvwbctphi4opq4sovkni