Occurrence of caffeine in carbonated drinks cola type from Romanian market
نویسنده
چکیده
Caffeine is a natural substance present in leaves and seeds of many plants. The aim of this study is to evaluate the caffeine level in the carbonated drinks from the Romanian market. For this survey were taken 30 samples of different carbonated drinks. The caffeine was determined and quantified using a HPLC with diode array detector at 206 nm. The caffeine retention time was at 17.785 minutes. The calibration curve was build using 3 stock solution of caffeine (25, 50 and 100 mg/L). The equation of the calibration curve was y=176460x, with a correlation coefficient R=0.999. The caffeine content in carbonated drinks from the Romanian market ranged between 25.20 – 109.68 mg/L. Key-Words: caffeine, carbonated drinks, HPLC, UV detection, risk assessment, hazard quotient
منابع مشابه
Caffeine intake from carbonated beverages among primary school-age children.
AIM The aim of the study was to assess caffeine intake from cola beverages and energy drinks, as well as the consumption frequency among primary-school-age children in relation to other dietary habits. MATERIAL AND METHODS The study included 329 children (aged 11-13 years) from five randomly selected schools in Warsaw. Caffeine intake was assessed from a food frequency questionnaire. The face...
متن کاملCaffeine content of energy drinks, carbonated sodas, and other beverages.
The caffeine content of 10 energy drinks, 19 carbonated sodas, and 7 other beverages was determined. In addition, the variability of the caffeine content of Coca-Cola fountain soda was evaluated. Caffeine was isolated from the samples by liquid-liquid extraction and analyzed by gas chromatography with nitrogen-phosphorus detection. The caffeine concentration of the caffeinated energy drinks ran...
متن کاملPhysicochemical Analysis of Carbonated Fruit Drink and Cola Beverage Prepared from Fructose Syrup 55 and Sucrose
In this study, carbonated fruit drink and cola beverage were prepared by sucrose and fructose syrup 55. The physicochemical properties of these samples were measured and compared. Three treatments for both types of drinks were considered: 100 % sucrose; 100 % fructose syrup 55; 50 % sucrose and 50 % fructose syrup 55. Changes in the sugar profile of both types of drinks and turbidity of carbona...
متن کاملCaffeine content of prepackaged national-brand and private-label carbonated beverages.
Caffeine is a well-known stimulant that is added as an ingredient to various carbonated soft drinks. Due to its stimulatory and other physiological effects, individuals desire to know the exact amount of caffeine consumed from these beverages. This study analyzed the caffeine contents of 56 national-brand and 75 private-label store-brand carbonated beverages using high-performance liquid chroma...
متن کاملQualitative and Quantitative Control of Carbonated Cola Beverages Using 1H NMR Spectroscopy
¹H Nuclear magnetic resonance (NMR) spectroscopy (400 MHz) was used in the context of food surveillance to develop a reliable analytical tool to differentiate brands of cola beverages and to quantify selected constituents of the soft drinks. The preparation of the samples required only degassing and addition of 0.1% of TSP in D₂O for locking and referencing followed by adjustment of pH to 4.5. ...
متن کامل