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Paper Details

Studies on Caffeine Content in Various Tea Samples: A Case Study from Kerala

Neenu Treasa Thomas1, Anju George1, Jiby John Mathew1, Sajesh kumar N. K1 and Prem Jose Vazhacharickal1*

Journal Title:Journal of Chemical, Biological and physical sciences

Caffeine popularly used in used in beverages and drugs where too much usages leads to health problems. The caffeine content among tea varies widely from the type of the tea as well as method of preparation. The objective of the study was to determine the caffeine content among five different types of tea including the two different brands. The samples includes sample 1 (organic black tea), sample 2 (green tea), sample 3 (Kanan Devan tea), sample 4 (vanilla tea) and sample 5 (Lipton tea).The caffeine content was determined using lead acetate and the subsequent extraction with ether. The moisture content ranged from 6.5 0.3 to 7.5 0.6 among various samples. Sample 4 has the highest ash content (7.1 0.3) while sample 3 possess least (5.5 0.6) among all samples. The organic black tea samples contain less amount of caffeine. The highest amount of caffeine was observed in sample 3 which has a concentration of 0.05 0.008. The present in vitro investigation results shows organic tea has the least caffeine content. The study also pinpoints the indication of caffeine content in tea packets for the better selection of the products for the consumers.