Table 3 Different screening and optimization methods employed for inulinase production by SSF

PBD, CCD

MnSO₄·7H₂O, NH₄NO₃, soya bean cake, and K₂HPO₄

76 U/gds

Dilipkumar et al. (2011b)

PBD, CCD

Soya bean cake, MgSO₄·7H₂O and (NH₄)₂SO₄

131 U/gds

Dilipkumar et al. (2013b)

BBD

Flow rate of air, packing density, and size of particle

300.5 U/gds

Dilipkumar et al. (2013a)

CCD

Temperature and corn steep liquor

391.9 U/g

Mazutti et al. (2006))

PBD, BBD

Inulin, corn steep liquor and (NH₄)₂SO₄

409.8 U/g

Xiong et al. (2007))

PBD, CCD

Yeast extract, FeSO₄.7H₂O, and NH₄NO₃

89 U/gds

Dilipkumar et al. (2011a)

CCD

Temperature, initial mass of cells and air flow rate

436.7 ± 36.3 U/gds

Mazutti et al. (2010b)

PBD, CCD, and BBD

K₂HPO₄, ZnSO₄·7H₂O and soya bean cake and packing density, air flow rate, moisture content, and particle size

239 U/gds

Dilipkumar et al. (2014))

CCD

Initial moisture, inoculum, wheat bran/rice bran, temperature, pH

455.9 U/g

Guo et al. (2009))

CCD

Initial moisture, inoculum, wheat bran/rice bran, temperature, pH

420.9 U/g

Sheng et al. (2009))

BBD

Moisture content, inoculum size and pH

257.2 ± 11.4 U/g

Trivedi et al. (2012))

CCRD

Moisture, incubation time, pH

77.95 IU/gds

Singh et al. (2018a)