CASE STUDY: INVERTASE IMMOBILIZATION ON VARIOUS WOOD SAWDUST SPECIES BY BIOSORPTION

We studied biosorption of invertase by three wood sawdust sawdust (MWS), Keruing sawdust (KRWS) and Kempas wood chips (KPWS) in the immobilization system and determined the equilibrium isotherm. Experimental data were analyzed using linear and nonlinear regression formulas of Langmuir and Freundlich. The maximum load calculation study showed that MWS (16.2614 ɥ gg - 1) is the most promising bio - solvent, but the KPWS showed the lowest level (10.2978 g g - 1).

The biosorption method includes a liquid phase (solvent, usually water) containing a solid phase (adsorbent or biosoribant; biomaterial) and a dissolved species to be adsorbed (adsorbate, metal ion). Since the adsorbent has a higher affinity for adsorbed species, the latter is attracted and removed by different mechanisms. This process continues until equilibrium is established between the amount of solid bound sorbate material and the portion remaining in solution. The degree of affinity of the adsorbent for the adsorbate determines its distribution between the solid phase and the liquid phase.

We studied biosorption of invertase by three wood sawdust sawdust (MWS), Keruing sawdust (KRWS) and Kempas wood chips (KPWS) in the immobilization system and determined the equilibrium isotherm. Experimental data were analyzed using linear and nonlinear regression formulas of Langmuir and Freundlich. - This special case will be developed around the personnel strategy executed by Johnson & Johnson in 1997. This strategy includes many important aspects of corporate culture, leadership and global strategies that are integrated into a single global HR program. This program allows Johnson & Johnson to diversify existing employees, improve future employee standards, redefine Johnson & Johnson's leadership standards, and improve global management.