Ingredients in Tea Leaves?

Tea leaf contains a very large amount of polyphenols, which is the most specific feature of tea. These phenolics are catechins, flavanols, leucoanthocyanines and phenolic acid and their derivatives. Among them catechins are predominant. Caffeine and amino acids are also known as important components.

What do tea leaves contain?

From what we know today, the most important compounds in fresh tea leaves are polyphenols, amino acids, enzymes, pigments, carbohydrates, methylxanthines, minerals and many volatile flavor and aroma compounds. These components are responsible for producing teas with desirable appearance, aroma, and taste.

Which chemicals are in tea leaves?

Structural formulae of catechins, caffeine, theanine, saponins as main green tea componets are drawn in the figure below. Polyphenols and caffeine are the most important chemicals of tea, considerable pharmacological significance.