Quantitative Analysis of Caffeine Levels in Local Coffee (Coffea sp) Powder on Dabo Island with UV-Vis Spectrophotometry
Open Access
- 14 November 2019
- journal article
- Published by Universitas Muhammadiyah Palangkaraya in Borneo Journal of Pharmacy
- Vol. 2 (2), 82-86
- https://doi.org/10.33084/bjop.v2i2.897
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.Keywords
This publication has 13 references indexed in Scilit:
- The Impact of Caffeine and Coffee on Human HealthNutrients, 2019
- Caffeine in the Diet: Country-Level Consumption and GuidelinesNutrients, 2018
- Effects of caffeine intake on muscle strength and power: a systematic review and meta-analysisJournal of the International Society of Sports Nutrition, 2018
- HPLC determination of caffeine in coffee beverageIOP Conference Series: Materials Science and Engineering, 2017
- ANALISIS KANDUNGAN KAFEIN PADA KOPI DI DESA SESAOT NARMADA MENGGUNAKAN SPEKTROFOTOMETRI UV-VISJurnal Kimia, 2016
- Validation of a UV Spectrometric Method for the Assay of Tolfenamic Acid in Organic SolventsJournal of Pharmaceutics, 2015
- Coffee provides a natural multitarget pharmacopeia against the hallmarks of cancerGenes & Nutrition, 2015
- Spectrophotometric Analysis of CaffeineInternational Journal of Analytical Chemistry, 2015
- Uric acid as one of the important factors in multifactorial disorders – facts and controversiesBiochemia Medica, 2012
- Statistics review 7: Correlation and regressionCritical Care, 2003