Ko te tii polyphenols he kupu whanui mo nga matū polyphenolic i roto i nga rau tii, he paura amorphous ma e ngawari ana te whakarewa ki te wai, te wairewa ki te waihano, methanol, acetone, me te ethyl acetate, me te kore e rewa ki te chloroform. Ko te ihirangi o te tii polyphenols i roto i te ti kaariki he tino nui, e 15% ki te 30% o tona papatipu. Ko nga waahanga matua o te tii polyphenols he flavonoids, anthocyanins, flavonols, anthocyanins, waikawa phenolic, me te waikawa phenolic. I roto i era, ko te flavanones (te nuinga o te katekini) te mea nui, e 60% ki te 80% o te tapeke polyphenols tea, whai muri ko te flavonoids, me etahi atu matū phenolic he iti noa te ihirangi.