Wetting agent is another term that is used more frequently in industry, referring to a substance that can reduce the surface tension of solid particles in a solid-liquid type suspension.
Type Wetting agent
- Nonionics (zero charge).
- Anionic (negative charge).
- Cationic (positive charge).
- Amphoteric (negative and positive charge).
|Surfactants and polymers||Cellulase performance|
|Nonionic surfactants||Generally compatible with all nonionic surfactants, especially ethoxylates. High foaming surfactants should be avoided or a defamer should be used.|
|Anionic surfactants||Noncompatible and they may cause the enzyme to denature, especially if used alone. The use in combination with a very low concentration of nonionic surfactant may be beneficial. Avoid high foaming surfactants.|
|Cationic surfactants (softeners)||May be compatible, however, surface coverage may prevent cellulase adsorption and hydrolysis.|
|Polymers||Generally compatible with most polymers used (polyethylene, polyvinylpyrrolidone). Note that some polymers will adsorb to cotton fabric and prevent cellulase action by surface coverage.|