In some other fruit byproducts, such as mango, quince and citrus wastes, AIS contents were reported to be 30.7–49.7, 27.8–37.5 and 45.0–75.0 g/100 g, respectively (Gourgue et al., 1992; Thomas et al., 2000; Ting,1970). After lipid removal, the amounts of AIS and WIS in the defatted seed were largely increased to 89.0 and 93.3 g/100 g, respectively, hence the contents of insoluble FRFs were high enough to be a potential fibre source.