Energy drink

Extracts of coffee bean and cocoa bean have been produced experimentally that contained about 3% of caffeine and 3% theobromine respectively without the disadvantage of flavour concentration typically associated with those raw materials. These are potentially alternative natural sources of effective stimulants to guarana and kola. Other supplementary herbs that have a place in energy 

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Reyner, L. A. and Home, J. A., Efficacy of a functional energy drink in counteracting driver sleepiness. Physiol. Behavior, 75, 331, 2002. 

Comparison of Derivative Speetrophotometry and Partial Least Square (PLS-1) Calibration for the Determination of Caffeine in Energy Drinks... 

Abstract Caffeine, a xanthine alkaloid, occurs in teaplants, coffee, mate leaves and cola nuts, ft is also commonly found beverages, such as cola drinks, tea and energy drinks. 

In this work, two methods for the determination of caffeine in energy drinks by derivative spectrophotometry and by partial least-squares multivariate spectropho-tometric calibration (PLS-1) are described. Proposed methods involve background correction methods that interferences from vitamins, taurin and food colours were minimized by treating the sample with basic lead acetate and NaHC03 for the arralysis of caffeine in energy drinks. 

The methods were applied to determine caffeine in commercial energy drinks and the results obtained are compared. It was found that these methods don t reqitire expensive solvents and can confidently be used for rapid, precise and sensitive qirantitation of caffeine in energy drinks, especially for routine quality control analyses. 

Keywords Alkaloid, catfeine, energy drinks, spectrophotometry,... 

Energy drinks. Red Devil and Tiger Shot, containing 150 mg/L caffeine were aequired from Turkey supermarkets. 

In analysing the caffeine of energy drinks, an accurately weighed amount of 15 mL of sample to 50 mL volumetric flask containing 25 mL water. Two milliliters of basic lead acetate solution was added to this solution and diluted the mark with distilled water. After filtering, 25 mL of filtrate was taken and 0.25 g of NaHCOj was added to this solution. Then, the solution was filtered. Five milliliters of filtrate was transferred to a 25 mL volumetric flask and adjusted to volume with distilled water. The peak amplitudes of the first-derivative spectra was measured at 287 and 260 nm. The sample preparation procedure was also used for PLS-1 method and the absorbances of this solution were recorded between 240-320 mn. 

The absorption spectra and first derivative spectra of 9 )ig mL solution of caffeine and energy drinks samples are given in Figs. 31.1 and 31.2. Upon examining the first spectra of two samples, it can be noticed that caffeine can be determined 287 and 260 nm. 

With the aim of improving the analysis of caffeine in energy drinks, the multivariate calibration method PLS-1 was tested. The method was evaluated by using the absorption spectra for the analysis. The absorption spectra of caffeine standards and samples were recorded in the 240-320 rrm range, digitized every 5 rrm. 

Table 31.2 Results obtained in the analysis of eommercial samples of energy drinks...

However, only common and inexpensive reagents are used. They are rapid and do not require ai r expensive or sophisticated apparatus, in contrast with chromatographic methods. So, the proposed methods can be used for the routine analysis of caffeine in energy drinks. 

The development of specialised energy drinks or isotonic beverages is perhaps an example of a truly new product area. As new raw materials become available, for example soluble whey protein, whole ranges of products are likely to be spawned. 

There is also a growing interest in drinks with associated special characteristics. These products will often contain sugars for energy, caffeine for stimulation and vitamins, amino acids and maybe herbs which impart some unique selling property as a health benefit. A very good example of this type of product is Red Bull, which is described, according to its website, thus Red Bull is much more than a soft drink - it is an energy drink. It was made for moments of increased physical and mental stress and improves endurance, alertness, concentration and reaction speed. In short it vitalizes body and mind. ... 

Energy drinks have a firm base in Japan and increasingly so in Europe. They have a smaller share of die market in the United States. 

Palatable high-energy drinks are readily formulated by selecting the appropriate carbohydrate blend (Table 13.2). 

CHEMISTRY AND TECHNOLOGY OF SOFT DRINKS AND FRUIT JUICES 13.6.2 Energy drinks... 

Endorsements from popular athletes often spell success for a product. Companies like to have the support of famous athletes because consumers, especially teenagers, often want to emulate their favorite athletes. They want to buy the shoes that Michael Jordan wears or drink the energy drink Brett Favre likes. The NFL ban on ephedrine means that NFL players and teams cannot endorse products containing ephedrine or companies that sell or distribute those products. Many hope this ban will stop some teens from buying ephedra products. 

In 2004, the Ontario plant began to produces sports and energy drink bottles made from biodegradable NatureWorks PLA resin. 

Machado-Vieira R, Viale Cl, Kapczinski F. Mania associated with an energy drink the possible role of caffeine, taurine, and inositol. Can J Psychiatry 2001 46(5) 454-5. 

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