ANALISIS KANDUNGAN KAFEIN PADA KOPI DI DESA SESAOT NARMADA MENGGUNAKAN SPEKTROFOTOMETRI UV-VIS

  • Aryanu Fahmi Arwangga
  • Ida Ayu Raka Astiti Asih
  • I Wayan Sudiarta

Abstract

Coffee is one of the agriculture commodities that are cultivated by farmers. One of the compounds in the coffee is caffeine. Caffeine is one of alkaloids which contains in coffee bean. The purpose of this study was to determine the contents of caffeine in unripe coffee, pure coffee powder, and mix coffee powder by using UV-Vis spectrophotometer. Standard solutions of caffeine used were 1 ppm; 3 ppm; 6 ppm; 9 ppm; 12 ppm; and 15 ppm. Caffeine calibration curve equation was y = 0.0494x ??+ 0.01862 with a correlation coefficient (r) of 0.99714. Caffeine content in unripe coffee was 1,28±0,82 % with water content 3%, pure coffee powder 1,63±0,13 % with water content 1%, and mix coffee powder 0,87±0,01 % with water content 1%. According to SNI 01-7152-2006 maximum limit of caffeine in food and drink was 150 mg/day and 50 mg/dish.

Downloads

Download data is not yet available.

Author Biographies

Aryanu Fahmi Arwangga

Jurusan Kimia FMIPA Universitas Udayana, Kampus Bukit Jimbaran

Ida Ayu Raka Astiti Asih

Jurusan Kimia FMIPA Universitas Udayana, Kampus Bukit Jimbaran

I Wayan Sudiarta

Jurusan Kimia FMIPA Universitas Udayana, Kampus Bukit Jimbaran

Published
2016-01-01
How to Cite
FAHMI ARWANGGA, Aryanu; RAKA ASTITI ASIH, Ida Ayu; SUDIARTA, I Wayan. ANALISIS KANDUNGAN KAFEIN PADA KOPI DI DESA SESAOT NARMADA MENGGUNAKAN SPEKTROFOTOMETRI UV-VIS. Jurnal Kimia (Journal of Chemistry), [S.l.], jan. 2016. ISSN 2599-2740. Available at: <https://ojs.unud.ac.id/index.php/jchem/article/view/17353>. Date accessed: 05 nov. 2024. doi: https://doi.org/10.24843/JCHEM.2016.v10.i01.p15.
Section
Articles

Keywords

caffeine, coffee, spectrophotometry UV-Vis

Most read articles by the same author(s)

1 2 > >>