Goldenseal. It’s other names include hydrastis canadensis, orangeroot, yellow puccoon, and bai mao liang,
A March 2021 study by Penn State University looked at the drying process for goldenseal reporting that,
"Three alkaloids -- berberine, hydrastine and canadine -- are recognized as the major bioactive constituents in goldenseal,"
"One important postharvest processing step for goldenseal is drying. However, before this study it was not known how drying temperature influences the concentrations of these alkaloids."
"This work is important because canadine has been found to have significant activity against numerous strains of bacteria, and in previous research it was the only one of the three major alkaloids found to be active against Pseudomonas aeruginosa and Staphylococcus aureus,”
"Also, canadine possesses significant antioxidant properties and has been identified as effective at strengthening the immune system."