Alkaloid

Berberine is a bright yellow isoquinoline alkaloid found in the roots and bark of plants including barberry Berberis, goldthread C...

Piperine is the alkaloid chiefly responsible for the pungency of black pepper Piper nigrum and is also present in long pepper and ...

Theobromine is a bitter methylxanthine alkaloid closely related to caffeine and the main stimulant compound in cocoa. Its name com...