Gravimetric Estimation of Caffeine in Different Commercial Kinds of Tea Found in the Iraqi Market

Authors

  • Maha N. Hamad
  • Dhuha A. Abdul-Hussain

DOI:

https://doi.org/10.31351/vol19iss2pp48-53

Abstract

          Caffeine (1,3,7-trimethylxanthine), which is the most widely consumed stimulant in the world, had been isolated and estimated gravimetrically in fifteen  different commercial kinds of tea found in the Iraqi market.The kinds of tea were chosen according to their differences in the degree of fermentation and the method of processing i.e. black , gray and  green . The isolated caffeine was identified by melting point, sublimation, TLC, chemical tests, UV , IR , HPLC and CHNO analysis.                                                                                                              

Key words: Caffeine, Purine, tea.  

How to Cite

1.
N. Hamad M, A. Abdul-Hussain D. Gravimetric Estimation of Caffeine in Different Commercial Kinds of Tea Found in the Iraqi Market. Iraqi Journal of Pharmaceutical Sciences [Internet]. 2017 Mar. 29 [cited 2024 Nov. 21];19(2):48-53. Available from: https://bijps.uobaghdad.edu.iq/index.php/bijps/article/view/506

Publication Dates

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Published

2017-03-29

Issue

Vol. 19 No. 2 (2010): Iraqi J Pharm Sci, Vol.19(2) 2010

Section

Article

License

Copyright (c) 2017 Iraqi Journal of Pharmaceutical Sciences

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This work is licensed under a Creative Commons Attribution 4.0 International License.