Analisis Kafein pada Kopi di Desa Sesaot Narmada Menggunakan Spektrofotometri UV-Vis. Analisis kadar kafein pada kopi hitam di bukian gianyar menggunakan spektrofotometer UV-Vis. Validation of a UV Spectrometric Method for the Assay of Tolfenamic Acid in Organic Solvents. 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.Īhmed, S., Mustaan, N., Sheraz, M.A., Nabi, S.A.A., Ahmad, I. 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 equation of the calibration curve of caffeine is regression y = 0.1307x + 0.0112 with a correlation coefficient value (r) of 0.9993. Analysis of the ground coffee caffeine levels is quantitative determined using spectrophotometry UV-Vis.
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. Caffeine can be a tangible white powder or a shiny white needle-shaped, odorless caffeine, and caffeine has a bitter taste.
Coffee has a chemical compound, one of which is caffeine. 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.
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