The Stability Improvement of Aspergillus fumigatus α-Amylase by Immobilization onto Chitin-Bentonite Hybrid

Table 2

k_i, ΔG_i, and t_1/2 values of the free and immobilized enzymes.

Sample	ki (min^−1)	t1/2 (min)	ΔGi (kJ mole^−1)	Stability improvement
Free enzyme	0.0171 ± 0.0008	40.53 ± 1.9001	104.47 ± 0.1296	1
Immobilized enzyme	0.0045 ± 0.0004	154.00 ± 13.3963	108.17 ± 0.2389	3.8

The values were shown as mean ± SD, n = 2.