| antioxidant phenolic compounds of cassava (manihot esculenta) from hainan. | an activity-directed fractionation and purification process was used to isolate antioxidant components from cassava stems produced in hainan. the ethyl acetate and n-butanol fractions showed greater dpphË™and abts·+ scavenging activities than other fractions. the ethyl acetate fraction was subjected to column chromatography, to yield ten phenolic compounds: coniferaldehyde (1), isovanillin (2), 6-deoxyjacareubin (3), scopoletin (4), syringaldehyde (5), pinoresinol (6), p-coumaric acid (7), ficuso ... | 2011 | 22157579 |