Tea polyphenol also called green tea extract are a mixture of chemical compounds such as flavanoids and tannins found naturally in tea. Polyphenols are powerful antioxidants which can reduce the risk of developing coronary artery disease and a number of other health problems.

10-Isobutyryloxy-8,9-epoxythymol isobutyrate is a major constituent of Inula helenium and Inula royleana root cultures. 10-Isobutyryloxy-8,9-epoxythymol isobutyrate shows moderate antimicrobial activity against Staphylococcus aureus FDA 209 P, Staphylococcus aureus, Enterococcus faecalis,Candida albicans and Pseudomonas aeruginosa with MICs of 50, 250, 250, 250, and 1000 μg/mL, respectively.

Herbacetin 3-O-glucopyranoside-8-O-glucuronopyranoside is a flavonoid glycoside that can be isolated from Malope trifida Cav.