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A simple method for determination of caffeine content in tea samples.

S Venkatesh1, M M Swamy, Y S Reddy

  • 1J.S.S. College of Pharmacy, Rocklands, Ooty - 643 001, India.

Ancient Science of Life
|May 5, 2012
PubMed
Summary

This study presents a simple, modified colorimetric method to accurately measure caffeine content in various tea samples. The findings offer insights into caffeine levels across different tea brands and potential reasons for variations.

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Area of Science:

  • Analytical Chemistry
  • Food Science

Background:

  • Caffeine content in tea is a key quality parameter.
  • Accurate estimation methods are crucial for consumers and industry.

Purpose of the Study:

  • To develop and present a simple, modified colorimetric procedure for caffeine estimation.
  • To compare caffeine content in commercial and local tea samples.

Main Methods:

  • A modified colorimetric technique was employed.
  • Direct estimation of caffeine from tea extracts was performed.

Main Results:

  • The developed method provides a straightforward estimation of caffeine.
  • Comparative data on caffeine content across different tea brands are presented.

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  • Variability in caffeine content among samples was observed and explained.

    • Conclusions:

    • The modified colorimetric procedure offers an improved approach for direct caffeine quantification in tea.
    • Understanding caffeine variability is important for tea quality assessment.