- H ydro xy tax od ione , ▁ 7 , 7 ‘ - b ist ax od ione , ▁and ▁ 1 1 , 1 1 ‘ - d ide h ydro xy - 7 , 7 ‘ - d ih ydro xy tax od ione ▁were ▁found ▁in ▁Sal via ▁mont bre tt i . ▁ ▁Activity ▁Tax od one ▁and ▁tax od ione ▁possess ▁in ▁v ivo ▁activity ▁against ▁Walker ▁intr am us cular ▁car c inos ar com a ▁ 2 5 6 ▁in ▁r ats ▁( 2 5 ▁and ▁ 4 0   m g / kg , ▁respectively ) ▁and ▁in ▁vit ro ▁activity ▁against ▁cells ▁derived ▁from ▁human ▁car cin oma ▁of ▁the ▁nas oph ary nx ▁( KB ) ▁( ED 5 0 ▁= ▁ 0 . 6 ▁and ▁ 3   ug / ml ▁respectively ). ▁Tax od one ▁and ▁tax od ione ▁exhib it ▁ant if ung al ▁activity ▁against ▁wood ▁decay ▁fung i , ▁with ▁tax od ione ▁being ▁especially ▁active ▁against ▁Tr am etes ▁vers icol or ▁and ▁F om it opsis ▁pal ust ris . ▁Tax od ione ▁exhib ited ▁the ▁highest ▁ant io x id ant ▁activity ▁among ▁the ▁tested ▁d iter pen oid s ▁from ▁the ▁roots ▁of ▁Sal via ▁bar re lier i . ▁Tax od one ▁showed ▁pot ent ▁ant ib acter ial ▁effects ▁against ▁food bor ne ▁path ogen ic ▁b acter ia , ▁such ▁as ▁L ister ia ▁mon oc yt ogen es ▁AT