ANALISIS KAFEIN DALAM KOPI ROBUSTA (TORAJA) DAN KOPI ARABIKA (JAWA) DENGAN VARIASI SIKLUS PADA SOKLETASI
Abstrak: The research about
analysis of caffeine content on coffee Robusta (Toraja) and coffee Arabika
(Jawa) with cycle variations using spectrophotometer UV has been done. Coffee
extract obtained through soxhletation with ethanol 96 % and variation cycles
used is 3, 6, 9, 12 and 15, tested with spectrophotometer UV at a wavelength of
272 nm. The result of this research was obtained the caffeine content in coffee
Robusta (Toraja) for 3, 6, 9, 12, 15 cycles consecutive is 1.439 mg/L, 2.158
mg/L, 2.695 mg/L, 2.887 mg/L and 3.700 mg/L. The caffeine content obtained
coffee Arabika (Jawa) for 3, 6, 9, 12, 15 cycles consecutive is 0.474 mg/L,
0.478 mg/L, 1.056 mg/L, 1.540 mg/L and 1.926 mg/L respectively.
Keywords: Coffee Robusta,
Coffee Arabika, Ethanol 96 %, Soxhletation, Caffeine, Spectrophotometer UV
Penulis: Tria Annisa Rizky,
Chairul Saleh, Alimuddin
Kode Jurnal: jpkimiadd150429
