Table 2: Extracellular inulinase and invertase productions by different commercial media.

Production mediaExtracellular inulinase activity (U/mL)Extracellular invertase activity (U/mL)

A157 ± 0.94536 ± 2.08
B707 ± 3.141167 ± 7.05
C697 ± 2.16955 ± 5.02
D2553 ± 9.171983 ± 8.03
E1664 ± 6.161052 ± 6.05
F880 ± 4.15663 ± 3.08

A: yeast extract 3 g, malt extract 3 g, peptone 5 g, and dextrose 10 g.
B: potato dextrose broth.
C: for the production of inulinase [inulin (1%), NH4Cl (2.4%), and Mg2SO4·7H2O (1.2%)] and invertase [inulin (5%), NH4Cl (4.8%), and Mg2SO4·7H2O (1.2%)].
D: sucrose (20 g), yeast extract (2 g), NaNO3 (2 g), MgSO4·7H2O (0.05 g), and K2HPO4 (0.5 g).
E: inulin (10 g), yeast extract (1.5 g), NH4NO3 (2.3 g), (NH4)2HPO4 (3.7 g), KH2PO4 (1.0 g), and MgSO4 (0.5 g).
F: inulin (2 g), peptone (2 g), (NH4)H2PO4 (1.2 g), NaCl (0.5 g), and MgSO4·7H2O (0.05 g).