Which peppers contain piperine?
4.16.
Piperine is the alkaloid responsible for the pungency of black pepper, Piper nigrum (Piperaceae), and Piper longum L., commonly known as long pepper.
Does cayenne pepper activate turmeric?
(3) You must also use black pepper only; its active compound, piperine, is what encourages turmeric absorption. The compound in cayenne, capsaicin, does not have the same effects (although it is extremely good for you). ... So spice shakers of turmeric and black pepper do little to nothing.