Polysaccharide isolated from Passiflora edulis: Characterization and antitumor properties

► Polysaccharide fraction from P. edulcis flour (PFCM) was extracted with hot water. ► PFCM has homogalacturonan (HG) and rhamnogalacturonan-1 (RG-1) structures. ► The proportion of RG-1 structure is higher than HG structure. ► PFCM exhibited in vivo antitumor effects with no expressive toxicity.