Dietary fiber (DF) from bamboo shoots (Phyllostachys praecox f. Prevernalis) was treated with cellulase and xylanase, and their physiochemical properties and structural changes were analyzed. Water holding capacity (WHC), oil holding capacity (OHC), swelling capacity (SC), and adsorption capacities of cholesterol and nitrites were examined as physiochemical properties. Changes in DF structure were analysed by scanning electron microscopy (SEM), fourier transform infrared spectra (FT-IR), and X-ray diffraction (XRD). The results showed that the soluble dietary fiber content increased from initial (1.02±0.04) g/100 g DF to (6.80±0.15) g/100 g DF after enzyme modification. Moreover, the WHC, OHC, SC, and cholesterol and nitrite ions absorbent abilities significantly increased (P< 0.05). The porosity of the DF surface and its specific surface increased. Both lignin and cellulose in DF were partially degraded, and the crystallinity decreased. In conclusion, cellulase and xylanase are suitable to modify bamboo shoots DF, and they are beneficial for research and development of new functional foods or food additives from bamboo shoots.
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