scholarly journals Coffee and Caffeine Consumption for Human Health

Nutrients ◽  
2021 ◽  
Vol 13 (9) ◽  
pp. 2918
Author(s):  
Raquel Abalo
Keyword(s):  
Human Health ◽  
Energy Drinks ◽  
Soft Drinks ◽  
Caffeine Consumption ◽  
Sport Supplements

Coffee is one of the most popular and consumed beverages worldwide, and caffeine is its best-known component, present also in many other beverages (tea, soft drinks, energy drinks), foodstuffs (cocoa, chocolate, guarana), sport supplements and even medicines. [...]

New concerns on caffeine consumption and the impact of potential regulations: The case of energy drinks

Food Policy ◽  
2019 ◽  
Vol 87 ◽  
pp. 101746 ◽  
Author(s):  
Xuan Chen ◽  
Yizao Liu ◽  
Edward C. Jaenicke ◽  
Adam N. Rabinowitz
Keyword(s):  
Energy Drinks ◽  
Caffeine Consumption ◽  
The Impact

scholarly journals Caffeine and Peripheral Blood Flow

2020 ◽  
Vol 2 (02) ◽  
pp. 01-04
Author(s):  
Gary Merrill
Keyword(s):  
Blood Flow ◽  
New Jersey ◽  
Peripheral Blood ◽  
Chemical Biology ◽  
Energy Drinks ◽  
Soft Drinks ◽  
Peripheral Blood Flow ◽  
Drug Of Choice ◽  
Rutgers University ◽  
The World

Caffeine is the drug of choice for adults of the world. It is commonly found in the favorite beverages they consume such as coffee, energy drinks, soft drinks and tea. The caffeine molecule is a decorative sculpture that helps visitors identify the recently-constructed Chemistry and Chemical Biology Building on the Busch Campus of Rutgers University, Piscataway, New Jersey.

scholarly journals Risk of Energy Drink Consumption to Adolescent Health

2018 ◽  
Vol 13 (1) ◽  
pp. 22-25 ◽  
Author(s):  
Lyndsey D. Ruiz ◽  
Rachel E. Scherr
Keyword(s):  
Sleep Disturbances ◽  
Illicit Drugs ◽  
Energy Drinks ◽  
Energy Drink ◽  
High Energy ◽  
Caffeine Consumption ◽  
The Past ◽  
Energy Drink Consumption ◽  
Simple Carbohydrates ◽  
National Poison Data System

Energy drinks are beverages marketed to quickly increase alertness and performance of the consumer that typically contain relatively high quantities of caffeine, simple carbohydrates, and a mixture of additional ingredients. The carbohydrate sources, usually glucose and sucrose, found in the beverages supply the substrates needed for physiological energy, while the high caffeine content supplies the perceived energy through enhancing feelings of alertness during fatigued states. Although mean youth caffeine consumption as a whole has decreased over the past 2 decades, adolescent energy drink consumption has significantly increased in the past 10 years. High energy drink consumption of youth is concerning due to the range of reported adverse reactions attributed to excessive caffeine consumption, ranging from mild sleep disturbances to death. Reactions are severe enough to require reporting to the National Poison Data System and may even require emergency medical treatment. Studies have also shown that adolescents who consume energy drinks are likely to also use tobacco, alcohol, and illicit drugs. There is substantial evidence to suggest that the risk energy drinks pose to health are incredibly hazardous and should not be consumed by children and adolescents.

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 Quick and simultaneous determination of caffeine and taurine in beverages using UPLC-ESI-MS

2021 ◽  
Vol 12 (1) ◽  
pp. 18-22
Author(s):  
Mohd Aftab Alam ◽  
Rayan Saud Al-Arifi ◽  
Abdulaziz Abdullah Al-Qarni ◽  
Abdullah Shaya Al-Dosseri ◽  
Fahad Ibrahim Al-Jenoobi
Keyword(s):  
Simultaneous Determination ◽  
Mobile Phase ◽  
Energy Drinks ◽  
Solvent System ◽  
Energy Drink ◽  
Molecular Ions ◽  
Soft Drinks ◽  
Cone Voltage ◽  
Esi Ms

A rapid UPLC-ESI-MS method was developed for simultaneous determination of caffeine and taurine in beverages (energy drinks and soft drinks). The molecular ions of caffeine and taurine were identified in single ion recording mode at m/z 194.98 and 125.86, respectively. The mass spectrometer parameters were optimized as: capillary voltage 3.0 kV, cone voltage 35 V, extractor 3 V, RF Lens 0.1 V, source temperature 150 °C, desolvation temperature 350 °C, nitrogen 600 L/h, LMR1 7.9, HMR1 15.2, IE1 0.30. The mobile phase comprising methanol (0.1% formic acid) (A) and water (5 mM ammonium acetate) (B) was used in gradient mode. The mobile phase components A and B were pumped in 80:20 (v:v) ratio from 0-0.44 min, and then 100% of component A was pumped between 0.45-0.68 min, and at 0.69 min the composition was returned to 80:20 (v:v) ratio of A and B till 2.0 min. Caffeine and taurine were eluted at 0.46 and 0.43 min, respectively. The samples of energy drinks and soft drinks were diluted in a solvent system comprising methanol and water in 80:20 (v:v) ratio. Our investigations showed that soft drinks SD1 and SD2 have 88.8±4.2% and 110.7±3.6% (w:w) caffeine of their labeled claim. The caffeine content in energy drink brands ED1, ED2, ED3, and ED4 was 76.9±2.5, 65.6±3.4, 88.1±12.6, and 89.1±2.8% (w:w) of labeled claims, respectively. While taurine content in ED1, ED2, ED3, and ED4 was 86.5±8.4, 81.3±27.5, 101.9±4.8, and 97.1±0.3% (w:w) of labeled claim, respectively.

scholarly journals The Effect of Ergogenic Supplements and Mediterranean Diet on Cycling Performance. Differences According to Duration and Intensity.

2017 ◽  
Vol 2 (1) ◽  
pp. 23
Author(s):  
Sousana Papadopoulou ◽  
Elpiniki Kroustalloudi ◽  
Ioannis Pagkalos ◽  
Anna Kokkinopoulou ◽  
Maria Hassapidou
Keyword(s):  
Time Trial ◽  
Bioelectrical Impedance ◽  
Energy Drinks ◽  
Ergogenic Aids ◽  
Double Blind Study ◽  
Fat Percentage ◽  
Caffeine Consumption ◽  
Double Blind ◽  
Supplement Use ◽  
Validated Questionnaire

Aims: To record the prevalence and the type of supplement use among cyclists and to estimate the effect of caffeine, carbohydrates, energy drinks and meddiet score on 200m and 4km cycling time-trial performances in a Greek sample.Methods: Fifty male cycling athletes aged 32±20 years participated in a randomized, double-blind study. The subjects were submitted to anthropometric measurements and body composition was assessed with bioelectrical impedance. All participants completed the meddiet Score questionnaire and a validated questionnaire about their ergogenic aids’ preference. The athletes performed two cycling trials (200m and 4km) and their records were taken down and were evaluated according to their consumption of caffeine, carbohydrates and energy drinks and their meddiet score. For the statistical analysis SPSS, v20 was used.Results: Greek cyclists had a mean BMI value of 23.65±2.74 and a mean body fat percentage of 15.82±8.33. Endurance and speed performances were improved with caffeine consumption when compared to no consumption (7.42±3.92min vs 12.5±3.16min, p<0.001 and 20.75±15.69sec vs 34.07±16.25sec, p<0.05, respectively), as well as with energy drinks’ consumption (8.77±4.15min vs 13.25±2.47min, p<0.001 and 20.35±14.08sec vs 39.14±14.38sec, p<0.001, respectively). Carbohydrates’ intake improved performance in the endurance test (7.60±3.72min vs 12.86±2.92min, p<0.001), but did not have a positive influence in the speed test (25.73±18.68sec vs 33.08±15.95sec, p>0.05).Conclusions: Ergogenic aids had a positive effect on the athletic performance in terms of speed and endurance in cyclists. 

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