MrEffendi wrote:The catechin content in our tea has an affinity for cannabinoid receptors in the brain. So the catechin content may be what we are referring to as "qi." Catechins in larger doses provide a calming effect.
Would love to see some citations on this.
I have run into several studies, and like Tom says, there are many but their scope is small, so I'd say there aren't solid generalizations that can be made yet. But I'm not a chemist, so maybe I'm just not up on the latest findings. Keep looking and you'll find information.
I try not to use the word "alkaloids"; apparently it's not a well-defined category. Usually people are referring to caffeine and its relatives when they say "alkaloids" in the context of tea: I find "methylxanthines" is more precise for this purpose. Anthocyanins and catechins are two different families of polyphenols.
One scientist I spoke with said HPLC will cost me around $200 a pass.