| Process phase |
Factor |
Effect on biosorption |
| Effect on cell wall |
Effect on biosorption |
| Ethanol fermentation |
High ethanol concentration |
Lower specific surface area and reduced concentration of mannans in the cell wall [31] |
Negative |
| Increased chitin concentration [24] |
Positive |
| Denaturation of soluble cell wall proteins [35,36] |
Positive |
| Enzyme production |
Phosphate limitation |
Lower amount of teichoic acids in Bacillus [45] |
Negative |
| Separation (filtration) |
Shear forces |
Disintegration and leaking of cell wall polysaccharides [47] |
Negative |
| Thermal disruption |
High temperature |
Denaturation of soluble cell wall proteins [35,36] |
Positive |
| Mechanical disruption |
Shear forces |
Disintegration and leaking of cell wall polysaccharides [47] |
Negative |