Borneo Journal of Pharmacy
Vol. 2 No. 2 (2019): Borneo Journal of Pharmacy

Quantitative Analysis of Caffeine Levels in Local Coffee (Coffea sp) Powder on Dabo Island with UV-Vis Spectrophotometry

Sri Hainil (Sekolah Tinggi Ilmu Kesehatan Mitra Bunda Persada Batam)
Suhaera Suhaera (Sekolah Tinggi Ilmu Kesehatan Mitra Bunda Persada Batam)
Lirtri Lirtri (Sekolah Tinggi Ilmu Kesehatan Mitra Bunda Persada Batam)



Article Info

Publish Date
30 Nov 2019

Abstract

Coffee (Coffea sp) is the second-largest beverage consumed by people around the world whose process comes from the processing and extraction of coffee beans. Coffee has a chemical compound, one of which is caffeine. Caffeine is a crystal-shaped compound. Caffeine can be a tangible white powder or a shiny white needle-shaped, odorless caffeine, and caffeine has a bitter taste. The purpose of the study was to determine the caffeine levels of local ground coffee on the island of Dabo with the spectrophotometry UV-Vis method. Analysis of the ground coffee caffeine levels is quantitative determined using spectrophotometry UV-Vis. The equation of the calibration curve of caffeine is regression y = 0.1307x + 0.0112 with a correlation coefficient value (r) of 0.9993. Based on Indonesian National Standards (SNI) 01-7152-2006, The maximum limit of caffeine in foods and beverages is 150 mg/day and 50 mg/serving. The results of the analysis of caffeine levels from three samples of ground coffee circulating on Dabo Island each in 2 g were 0.3383 mg for Sample A; 0.3786 mg for Sample B; and 0.5803 mg for Sample C.

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Journal Info

Abbrev

bjop

Publisher

Subject

Medicine & Pharmacology

Description

Borneo Journal of Pharmacy publishes various scientific articles covering Pharmacy and Pharmaceutical Sciences in the field but not limited to: Pharmacology-Toxicology, including pharmacokinetics, pharmacodynamics, pharmacotherapy, and toxicology. Pharmacognosy-Phytochemistry, including ...