A destination for agro-industrial waste is to use them as fermentation substrates. This work was aimed at evaluating the influence of the nature of the waste fermented by two strains of Xanthomonason on the biopolymer properties. The production was performed in an orbital shaker (250 rpm / 28 °C / 120 h) by fermentation of sucrose (control), crude glycerin from biodiesel and sisal liquid waste. Both the fermented substrate composition and the strains had a strong impact on production (0.36 to 2.40 g.L- 1), apparent viscosity (13.73 to 36.31 mPa.s) and molecular mass (2.1 to 5.9 × 10(6) Da) of the resulting xanthan gum, but they did not affect the pseudoplastic behavior of aqueous biopolymers solutions.
Production; viscosity and molecular mass
