Figures & data
Figure 1. Scanning electron microscopy images of chitosan beads (a, c, e), immobilized lipase in chitosan beads (b, d, f) with different magnifications (130×, 1000×, 10,000×, respectively).
![Figure 1. Scanning electron microscopy images of chitosan beads (a, c, e), immobilized lipase in chitosan beads (b, d, f) with different magnifications (130×, 1000×, 10,000×, respectively).](/cms/asset/4f27915c-a372-4f8b-9278-3efbfb5c2cb2/ianb_a_1182920_f0001_b.jpg)
Figure 3. Optimization of tripolyphosphate (TPP) concentration used as multivalent covalent counter ion in immobilization procedure.
![Figure 3. Optimization of tripolyphosphate (TPP) concentration used as multivalent covalent counter ion in immobilization procedure.](/cms/asset/b72a6e1b-0fb9-49b1-b14d-6366abe11026/ianb_a_1182920_f0003_b.jpg)
Figure 4. Optimization of buffer pH prepared tripolyphosphate (TPP) used as multivalent covalent counter ion.
![Figure 4. Optimization of buffer pH prepared tripolyphosphate (TPP) used as multivalent covalent counter ion.](/cms/asset/3e5b6e0a-fd75-4233-88ba-60f7bb10d182/ianb_a_1182920_f0004_b.jpg)