Article Per Year (5 Year)
p-Index From 2019 - 2024
0
P-Index
This Author published in this journals
All Journal Jurnal Kimia Mulawarman
Tria Annisa Rizky
Jurusan Kimia Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Mulawarman
Chemistry

Published : 1 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 1 Documents
Search

 1 
ANALISIS KAFEIN DALAM KOPI ROBUSTA (TORAJA) DAN KOPI ARABIKA (JAWA) DENGAN VARIASI SIKLUS PADA SOKLETASI Tria Annisa Rizky; Chairul Saleh; Alimuddin -
JURNAL KIMIA MULAWARMAN Vol 13 No 1 (2015)
Publisher : Jurusan Kimia Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Mulawarman

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

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 throughsoxhletation 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
Co-Authors Alimuddin - Chairul Saleh