Quantitative analysis of caffeine content in some of energy drinks that are commercially available on the Egyptian market
Emam, B., Mohamed, B., Eskander, B., Hendy, E., Wahba, E., Angally, G., Elshafie, J., El-ghamry, M. (2025). Quantitative analysis of caffeine content in some of energy drinks that are commercially available on the Egyptian market. EKB Journal Management System, 2(1), 142-155. doi: 10.21608/aash.2025.459900
Bassant Emam; Bassant Mohamed; Berksam Eskander; Eman Hendy; Eman Wahba; Genina Angally; Jana Elshafie; Mosad El-ghamry. "Quantitative analysis of caffeine content in some of energy drinks that are commercially available on the Egyptian market". EKB Journal Management System, 2, 1, 2025, 142-155. doi: 10.21608/aash.2025.459900
Emam, B., Mohamed, B., Eskander, B., Hendy, E., Wahba, E., Angally, G., Elshafie, J., El-ghamry, M. (2025). 'Quantitative analysis of caffeine content in some of energy drinks that are commercially available on the Egyptian market', EKB Journal Management System, 2(1), pp. 142-155. doi: 10.21608/aash.2025.459900
Emam, B., Mohamed, B., Eskander, B., Hendy, E., Wahba, E., Angally, G., Elshafie, J., El-ghamry, M. Quantitative analysis of caffeine content in some of energy drinks that are commercially available on the Egyptian market. EKB Journal Management System, 2025; 2(1): 142-155. doi: 10.21608/aash.2025.459900

Quantitative analysis of caffeine content in some of energy drinks that are commercially available on the Egyptian market

البحوث التطبيقية في العلوم والانسانيات
Volume 2, Issue 1, 2025, Pages 142-155    PDF (1.06 M)
Document Type: المقالة الأصلية
DOI: 10.21608/aash.2025.459900
Authors
Bassant Emam; Bassant Mohamed; Berksam Eskander; Eman Hendy; Eman Wahba; Genina Angally; Jana Elshafie; Mosad El-ghamry
Assistant Professor, Inorganic Chemistry Ain Shams University, Faculty of Education, Bachelor of Science and Education (Preparatory and Secondary) Program, Chemistry
Abstract
This study was carried out to determine the levels of caffeine in the samples of the selected brands
of energy drinks that are available in local market in Egypt. Quantitative analysis of caffeine
content in the samples of energy drinks was performed using UV/Vis spectrophotometric
method. CHCl3 was used as the extracting solvent, and the absorbance of caffeine extract was
measured at λmax = 274 nm. The caffeine concentration in the samples (ppm) was subsequently
determined using the standard calibration curve. This study gave preliminary information about
caffeine levels in often consumed energy drinks in Egypt. The results indicated that the
concentrations of caffeine in energy drink samples were in the range of 226.12 to 388.69 ppm
with an average value of 310.37 ppm. Among the energy drink samples analyzed, the highest
caffeine concentration (388.69 ppm) was measured in the energy drink sample of Red Bull, while
the lowest caffeine concentration (226.12 ppm) was measured in the energy drink sample of
Twist. Concentrations of caffeine in energy drinks measured in this study were lower than the
one specified on their labels for all the analyzed drinks except Sting, Red Bull and Power horse
which showed slightly higher concentrations of caffeine than those labels specified. The levels of
caffeine in the energy drink samples analyzed in this study were below the maximum allowable
limits set by the food regulatory bodies.
Keywords
Energy drinks; caffeine content; quantitative analysis; adverse effects; awareness
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