3d image of zita fenchen skeletal formula

zita fenchen fenchel apiaceae foeniculum 3d bioprecursor cell herb biogenesis biochemistry endogenous metabolism pharmacognosy phytochemical catabolism biological activity metabolic structure anti-aging pathway food additive enzyme biosynthetic tcm ball stick phytotherapy geometry molecule cycle derivative pharmacopoeia intermediate precursor bioactive metabolite structural nutrient prescription drug substrate formula molecular atom healthy aging anti-cancer alternative medicine biosynthesis nutraceutica