test
Search publications, data, projects and authors

Other

Spanish

ID: <

http://hdl.handle.net/10251/104055

>

Where these data come from
Extraction and quantification of caffeine using UV-Visible spectroscopy in coffee, tea and cocoa

Abstract

caffeine is an alkaloid of the xantines group, which acts as a stimulant and psychoactive. It is found in many plant species. The usual source of caffeine is coffee, but it is also found in tea (tein), Guaraná (Guaranin), mate (matfeine), cocoa and tail refreshments, among others. The determination of caffeine has become very important due to its use in the pharmaceutical industry and in the food industry; either as an ingredient in the manufacture of soft drinks and energy drinks or by their presence in products such as tea, maté, cocoa and coffee. In all these cases, quality control of the caffeine parameter is necessary in the products containing it. For this reason, the development of instrumental methods for their determination in various matrices, especially in food, is important. In this article we will describe a caffeine extraction system, using solid liquid and liquid extraction techniques, and its subsequent quantification using spectrophotometric methods. To facilitate learning, a practical scenario applied to coffee beans, tea leaves and cocoa powder will be developed and solved. García Martínez, MS; Sources López, A.; Fernández Segovia, I. (2018). Extraction and quantification of caffeine using UV-Visible spectroscopy in coffee, tea and cocoa. http://hdl.handle.net/10251/104055

Your Feedback

Please give us your feedback and help us make GoTriple better.
Fill in our satisfaction questionnaire and tell us what you like about GoTriple!