Table 2

Langmuir and kinetic adsorption parameters of purified cellulases using α-cellulose at n = 1000 rpm

Cellulase

Langmuir adsorption parameters*

Kinetic adsorption parameters

Amax [μmol/g]

KD [μmol/L]

[-]

Amax [μmol/g]

kad [s-1]

[-]


CBH I

0.155± 0.003

0.433 ± 0.039

0.93

0.170± 0.003

0.0031 ± 0.0002

0.98

EG I

0.212 ± 0.010

2.146 ± 0.216

0.90

0.213 ± 0.007

0.0019 ± 0.0002

0.96


* According to Eqn (1).

According to Eqn (2).

Differences of Amax resulted because different charges of CBH I were used.

Errors are given as standard deviations.

Amax, the maximum cellulase adsorption at equilibrium; KD, the dissociation constant; kad, the pseudo-first-order adsorption rate constant; CBH, cellobiohydrolase; EG, endoglucanase.

Jäger et al. Biotechnology for Biofuels 2010 3:18   doi:10.1186/1754-6834-3-18

Open Data