Selective capacity | Molecular SO2 | The bisulfite ion ( ) | The sulfite ion ( ) | Combined form |
Fungicidal | ++ | Lightly | − | − |
Bactericide | ++ | Lightly | − | Lightly |
Antioxidant | ++ | + | Lightly | − |
Antioxidative | + | ++ | − | − |
Redox potential | + | + | Lightly | − |
Combination with acetic aldehyde | + | + | + | + |
Taste influence | Pungent smell, taste of sulfur | Odorless | Odorless | Odorless |