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Effect of Microbial Fermentation on Caffeine Content of Tea Leaves
Source of Article Wang et al. - 2005 - Effect of Microbial Fermentation on Caffeine Content.pdf
Caffeine content of beverages as consumed
Source: Gilbert et al. - Caffeine content of beverages as consumed.pdf
Spectrophotometric Analysis of Caffeine
Source: Ahmad Bhawani et al. - 2015 - Spectrophotometric Analysis of Caffeine.pdf
Factors Affecting the Levels of Tea Polyphenols and Caffeine in Tea Leaves
Source: Lin et al. - 2003 - Factors Affecting the Levels of Tea Polyphenols an.pdf
Distribution of Catechins, Theaflavins, Caffeine, and Theobromine in 77 Teas Consumed in the United States
Source: Friedman et al. - 2006 - Distribution of Catechins, Theaflavins, Caffeine, .pdf
A rapid and simple determination of caffeine in teas, coffees and eight beverages
Source: Sereshti and Samadi - 2014 - A rapid and simple determination of caffeine in te.pdf
Caffeine in tea Camellia sinensis — Content, absorption, benefits and risks of consumption
Source: Gramza-Michałowska - 2014 - Caffeine in tea Camellia sinensis — Content, absor.pdf
Determination of Caffeine in Coffee Products According to DIN 20481
Source: Naegele and Technologies - Determination of Caffeine in Coffee Products Accor.pdf
How can I measure the caffeine content in drinks?
Source: https://www.camlab.co.uk/blog/how-can-i-measure-the-caffeine-content-in-drinks
Caffeine Source Reference
Source: https://www.caffeineinformer.com/caffeine-source-reference
I Did Caffeine Analysis: The Unexpected Truth!
Source: https://www.youtube.com/watch?v=etnMr8oUSDo&ab_channel=JamesHoffmann Note: Probably the closest thing to a caffeine analysis done with some test comparisons, but for coffee. It is relatively simple in the sense that you don't need a lot of setup other...
How to extract Caffeine from Tea (Classic DCM Method)
Source: https://www.youtube.com/watch?v=RIbff5iD0GQ&ab_channel=NileRed Note: Uses dichloromethane method (DCM) to extract caffeine. The setup is a bit more involved and requires attention to equipment use. The video shows the process step by step, but it uses...
Optimization of Caffeine Extraction from Various Tea Types Using Dichloromethane as an Organic Solvent
Source: Memon and Idress - 2024 - Optimization of Caffeine Extraction from Various T.pdf
The Extraction of Caffeine from Tea Leaves All Parts
Source: https://www.youtube.com/watch?v=8Z_Ei1ITJpA&ab_channel=BristolChemLabS Note: Goes over each process and gives an overview of the equipment needed.
Characterization of Effects of Different Tea Harvesting Seasons on Quality Components, Color and Sensory Quality of “Yinghong 9” and “Huangyu” Large-Leaf-Variety Black Tea
Source: Ye et al. - 2022 - Characterization of Effects of Different Tea Harve.pdf
Chemical constituents analysis of white tea of different qualities and different storage times
Source: Chemical_constituents_analysis.pdf
Analysis of differences in the accumulation of tea compounds under various processing techniques, geographical origins, and harvesting seasons
Source: 1-s2.0-S0308814623016187-main.pdf
Summary
Tea, camellia sinensis, includes a number of bioactive chemicals including caffeine. The precise amount of caffeine extracted from tea depends on a combination of factors that include 1) the location or region; 2) the material of the tea leaves; 3) the pr...
Caffeine Extraction
Measuring caffeine would not be easy. The existing methods to measure tea range from requiring laboratory equipment to a DIY approach. In reviewing their approaches, the way they extract caffeine differs from how one normally brews tea such as the amount of gr...