scholarly journals The accuracy of reported caffeine content in energy drinks and energy shots (634.5)

2014 ◽  
Vol 28 (S1) ◽  
Author(s):  
Selasi Attipoe ◽  
Patrick Singley ◽  
Patricia Deuster
Keyword(s):  
Energy Drinks ◽  
Caffeine Content ◽  
Energy Shots

scholarly journals Caffeine Content in Popular Energy Drinks and Energy Shots

2016 ◽  
Vol 181 (9) ◽  
pp. 1016-1020 ◽  
Author(s):  
Selasi Attipoe ◽  
Jeffrey Leggit ◽  
Patricia A. Deuster
Keyword(s):  
Energy Drinks ◽  
Caffeine Content ◽  
Energy Shots

scholarly journals Determination of Caffeine and Taurine Contents in Energy Drinks by HPLC-UV

2016 ◽  
Vol 9 ◽  
pp. 66-73 ◽  
Author(s):  
Krishna Prasad Rai ◽  
Hasta Bahadur Rai ◽  
Santosh Dahal ◽  
Saroj Chaudhary ◽  
Suraj Shrestha
Keyword(s):  
Amino Acids ◽  
Pilot Study ◽  
Quantitative Determination ◽  
Physiological Responses ◽  
Alcoholic Beverage ◽  
Energy Drinks ◽  
Energy Drink ◽  
Young Generation ◽  
Caffeine Content

Energy drinks are non-alcoholic beverage intended to enhance the psycho-physiological responses in human, which is especially popular among young generation in Nepal. It is normally high caffeinated drink added with other ingredients such as carbohydrates, amino acids, B-group of vitamins etc. In this study, 10 brands of energy drink available in Nepalese markets were taken then analyzed for quantitative determination of Caffeine and Taurine by HPLC-UV method. From the result obtained, pH and TSS values of energy drinks were found in the range of 2.96-3.81 and 6.64-18.21 respectively. Likewise, the Caffeine and Taurine content in same samples were found in the range of not detected (ND) to 35.78 mg/100 ml and ND to 387.5 mg/100 ml respectively. Only the 6 samples out of 10 were confi rmed caffeine content as per claimed in label, while only 3 samples were confi rmed for Taurine content as per label claimed. Based on this pilot study, the majority of samples did not meet the label claims in term of Caffeine and Taurine, which apparently indicated the misbranding of such drinks. Since, there is no any regulation for such energy drinks in Nepal, it seems to be a great challenge for regulation of their safety and misbranding.

scholarly journals Simultaneous Determination of Caffeine and Taurine in Energy Drinks by FT-MIR Spectroscopy Coupled with Multivariate Analysis

2020 ◽  
Vol 2020 ◽  
pp. 1-7
Author(s):  
Marcela González-Vázquez ◽  
Ofelia Gabriela Meza-Márquez ◽  
Tzayhri Gallardo-Velázquez ◽  
Guillermo Osorio-Revilla ◽  
José Luis Velázquez Hernández ◽  
...  
Keyword(s):  
Multivariate Analysis ◽  
Fourier Transform ◽  
Standard Error ◽  
Energy Drinks ◽  
Mid Infrared ◽  
Determination Coefficient ◽  
Caffeine Content ◽  
Mir Spectroscopy ◽  
Validation Stage

Energy drinks have been studied due to their damaging side effects on the health of their consumers when consumed in excess or when combined with alcohol. Our objective was to develop chemometric models, based on Fourier-transform mid-infrared (FT-MIR) spectroscopy, to quantify the taurine and caffeine content in energy drinks rapidly and simultaneously. The taurine and caffeine content in the 50 samples ranged between 0 and 69.51 mg/100 mL and 14.92 and 1126.17 mg/100 mL, respectively. The best prediction model was obtained with the partial least squares (PLS1) algorithm; for taurine, the following values were obtained: determination coefficient of calibration (Rc2) = 0.9999, standard error of calibration (SEC) = 0.15, determination coefficient of validation (Rv2) = 0.9997, and standard error of prediction (SEP) = 0.16; for caffeine, Rc2 = 0.9999, SEC = 0.26, Rv2 = 0.9999, and SEP = 0.32. The model developed with PLS1 showed certainty in predictions during the validation stage and during application to external samples. FT-MIR coupled to chemometrics is a reliable and fast technique (compared to conventional techniques) to quantify taurine and caffeine in energy drinks simultaneously.

scholarly journals Determination of Caffeine Content in Non-Alcoholic Beverages and Energy Drinks Using Hplc-Uv Method.

2010 ◽  
Vol 9 (1) ◽  
Author(s):  
M Karau ◽  
J Kihunyu ◽  
N Kathenya ◽  
L Wangai ◽  
D Kariuki ◽  
...  
Keyword(s):  
Energy Drinks ◽  
Alcoholic Beverages ◽  
Caffeine Content

scholarly journals Spectrophotometric determining of caffeine content in the selection of teas, soft and energy drinks available on the Croatian market

Food Research ◽  
2021 ◽  
Vol 5 (2) ◽  
pp. 325-330
Author(s):  
N. Vuletic ◽  
L. Bardic ◽  
R. Odzak
Keyword(s):  
Black Tea ◽  
Energy Drinks ◽  
Energy Drink ◽  
Soft Drinks ◽  
Caffeine Concentration ◽  
Beverage Samples ◽  
Caffeine Content ◽  
Carbonated Soft Drinks ◽  
Three Samples ◽  
Selection Of

This study aimed to determine concentrations of caffeine in the samples of the selected brands of teas, soft carbonated and energy drinks that are commercially available on the Croatian market. Quantitative analysis of caffeine content in the chosen beverage samples was done with UV/Vis spectrophotometric method. Chloroform was used as the solvent and concentrations of caffeine were measured at the wavelength of 274 nm for three samples of each of the selected beverages. Among the analyzed tea samples the highest caffeine concentration was found in Franck's Black Tea (1471.021 ppm) and the lowest in Naturavita's Green Tea with Ginger (588.138 ppm). Between the analyzed carbonated soft drinks, the highest caffeine concentration was measured in Fresh Cola (136.036 ppm) and the lowest in Sky Cola (48.198 ppm). The highest caffeine concentration in the analyzed energy drink samples was measured in Hell energy drink (394.670 ppm) while the lowest was in Coca Cola Energy drink (173.574 ppm). The results of this study gave preliminary information about caffeine levels in often consumed teas, carbonated soft drinks and energy drinks in Croatia. The caffeine content in the analyzed teas and drink samples in this study was under the allowed one except for Red Bull and Hell.

scholarly journals Prevalence and Amounts of Common Ingredients Found in Energy Drinks and Shots

Nutrients ◽  
2022 ◽  
Vol 14 (2) ◽  
pp. 314
Author(s):  
Andrew R. Jagim ◽  
Patrick S. Harty ◽  
Abdelrahman R. Barakat ◽  
Jacob L. Erickson ◽  
Victoria Carvalho ◽  
...  
Keyword(s):  
Dietary Supplement ◽  
Energy Drinks ◽  
Energy Drink ◽  
The United States ◽  
B Vitamins ◽  
Vitamin B3 ◽  
Available Energy ◽  
Energy Shots ◽  
Energy Products ◽  
Relative Prevalence

Background: Energy drinks are one of the most popular packaged beverage products consumed within the United States (US). Energy drinks are considered a functional beverage, a category that also includes sports drinks and nutraceutical beverages. Purpose: The focus of the current study was to examine the nutrition fact panels of the top selling commercially available energy drink and energy shot products within the US to characterize common ingredient profiles to help establish a standard definition and ingredient profile of energy drinks and energy shots for consumers, health care practitioners, and researchers. Methods: The top 75 commercially available energy drinks and shots were identified and compiled from multiple commercial retail websites as of September 2021. For the purpose of this study, an energy drink must have met the following criteria: (A) marketed as an energy drink; (B) purported to improve energy, focus, or alertness; (C) not sold as a dietary supplement (no supplement fact panels); (D) manufactured as a pre-packaged and ready-to-drink beverage; and (E) contains at least three of (1) caffeine, (2) B-vitamins, (3) sugar, (4) taurine, (5) creatine, (6) quercetin, (7) guarana, (8) ginseng, (9) coenzyme Q10, or (10) branched chain amino acids. Energy shots must have met similar criteria to be included: (A) marketed as an energy shot; (B) purported to improve energy, focus, or alertness; (C) sold as a dietary supplement; (D) manufactured as a pre-packaged beverage with a small volume (<3.5 mL); and (E) contains at least three of the ingredients stated above. Results: Twenty energy shots and fifty-five energy drinks were included in this analysis. The number of ingredients per product (mean ± SD) was 18.2 ± 5.7, with 15 products containing proprietary blends with undisclosed ingredient amounts. The relative prevalence and average amounts of the top ingredients were as follows: caffeine (100%; 174.4 ± 81.1 mg), vitamin B6 (72%; 366.9 ± 648.1 percent daily value (%DV)), vitamin B3 (67%; 121.44 ± 69.9% DV), vitamin B12 (67%; 5244.5 ± 10,474.6% DV), vitamin B5 (37.3%; 113.6 ± 76.6% DV), and taurine (37.3%; amounts undisclosed). Conclusions: Our findings suggest a high prevalence of caffeine and B-vitamins in these energy products, with many of the formulations containing well above the recommended daily value of B-vitamins.

scholarly journals Cross-sectional surveys of the amount of sugar, energy and caffeine in sugar-sweetened drinks marketed and consumed as energy drinks in the UK between 2015 and 2017: monitoring reformulation progress

BMJ Open ◽  
2017 ◽  
Vol 7 (12) ◽  
pp. e018136 ◽  
Author(s):  
Kawther M Hashem ◽  
Feng J He ◽  
Graham A MacGregor
Keyword(s):  
Energy Content ◽  
Energy Drinks ◽  
Caffeine Intake ◽  
Warning Label ◽  
Cross Sectional Survey ◽  
Cross Sectional ◽  
Product Packaging ◽  
Caffeine Content ◽  
The Uk ◽  
Serving Size

ObjectivesTo investigate the sugar, energy and caffeine content of sugar-sweetened drinks marketed and consumed as energy drinks available in the UK.Study designWe carried out a cross-sectional survey in 2015 and 2017 of energy drinks available in the main UK retailers.MethodsThe sugar (sugars g/100 mL), energy (kcal/100 mL), caffeine (mg/100 mL) and serving size were collected from product packaging and nutrition information panels of energy drinks available in the nine main UK grocery retailers, three health and beauty retailers and one convenience store.ResultsThe number of formulations (per 100 mL) and number of products (per serving) have fallen (from 75 to 49 and from 90 to 59) between 2015 and 2017, respectively. Energy drinks surveyed showed a 10% reduction in sugar, from 10.6 to 9.5 g/100 mL (P=0.011) and a 6% reduction in energy content (P=0.005) per 100 mL between 2015 and 2017. The average caffeine content of energy drinks, with a warning label, has remained high at 31.5±0.9 in 2015 and 31.3±1.0 mg/100 mL in 2017. Despite there being reductions, sugar, energy and caffeine content remain at concerning levels in 2017.ConclusionsTo reduce the harmful impact of energy drinks, further reduction in sugar and a reduction in caffeine by reformulation are urgently needed. Other measures such as ban on the sale of energy drinks to children and smaller product sizes should also be explored, while warning labels should be kept. A reduction in sugar, energy and caffeine content and overall energy drinks consumption could be beneficial in reducing sugar, energy and caffeine intake of consumers of energy drinks.

scholarly journals Rapid High-Performance Liquide Chromatographic Method for Quantitative Determination of Caffeine in Different Soft and Energy Drinks Available in Bangladesh

2021 ◽  
Vol 9 (3) ◽  
pp. 1081-1089
Author(s):  
Juthi Mirza ◽  
Masuda Sultana ◽  
Md. Esrafil ◽  
Shamoli Akter ◽  
Md. Jahangir Alam ◽  
...  
Keyword(s):  
High Performance ◽  
Food Additives ◽  
Reference Value ◽  
Energy Drinks ◽  
Energy Drink ◽  
Hplc Method ◽  
Soft Drinks ◽  
Caffeine Content ◽  
And Control

Caffeine is one of the commonly used food additives, which has unique flavor characteristics and bitter taste and used in soft drinks as flavor enhancer. An experimental study was designed to determine the concentration of caffeine in different brands of soft drinks and energy drinks available in Bangladesh by using HPLC. For chromatographic analysis, A Luna 5 C18 (2) 100A column (250×4.6 mm) was used at 37°C temperature at the wavelength of 272nm. Chromatographic separation was determined using buffer of sodium acetate and acetic acid with acetonitrile at a ratio of 80:20 (pH=4.0; flow rate of 1.0 ml/min). The results of this study showed that caffeine content in soft drinks ranged from 19.63 to 101.73 mg/100ml and highest concentration of caffeine found in brand 3 samples while lowest concentration found in brand 2 samples. Significantly higher concentration of caffeine (p<0.05) found in six soft drinks sample when compared to BSTI and FDA reference value except brand 2 sample (p>0.05). Quantification of caffeine in different brands of energy drink sample revealed that, four brand sample contained caffeine; among them brand 3 sample showed the highest levels of caffeine 295.86 mg/100ml and lowest amount found in brand 1 sample (101.74 mg/100ml). Concentration of Caffeine in soft and energy drinks exceeded the national and international standard recommended range hence this proposed HPLC method can be used for routine determination and control of caffeine content in different drinks.

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