?O nā polyphenols kī he hua?ōlelo ma?amau no nā mea polyphenolic i loko o nā lau kī, ?o ia nā pauka amorphous ke?oke?o i hiki ke ho?ohehe?e ?ia i ka wai, hiki ke ho?ohehe?e ?ia i ka ethanol, methanol, acetone, a me ka ethyl acetate, a hiki ?ole ke ho?ohehe?e ?ia i ka chloroform. ?O ka ma?i?o o nā polyphenols kī i loko o ke kī ?ōma?oma?o he mea ki?eki?e, helu no 15% a 30% o kona nuipa. ?O nā mea nui o ka polyphenols kī he flavonoids, anthocyanins, flavonols, anthocyanins, phenolic acids, a me phenolic acids. Ma waena o lākou, ?o nā flavanones (ka nui o nā catechins) ka mea nui loa, no ka 60% a 80% o ka nui o nā polyphenols kī, ukali ?ia e nā flavonoids, a me nā mea phenolic ?ē a?e he ha?aha?a ha?aha?a.