to determine the effect of certain fiber materials on the absorption of b-6 vitamers , jejunal segments from young male adult rats were perfused in situ with a control solution containing 0.02 mm pyridoxine ( pn ) , 0.02 mm pyridoxal ( pl ) , and 0.02 mm pyridoxamine ( pm ) , followed by a test solution containing the same vitamin b-6 mixture and one of five fiber-rich test materials ( cellulose , pectin , lignin , homogenized fresh carrot , or carrot homogenized after 10 min boiling ) added at a concentration of 1-3 % .
C0007648
cellulose
C0023705
lignin