Target miroorganism | Testing materials | |||||||
---|---|---|---|---|---|---|---|---|
Acetic acid (7.6 g/L) | Unfermented tea | Fermented tea (Kombucha) | ||||||
pH 4.0 | pH 7.0 | 0 days | 1 days | 4 days | 7 days | |||
++ | – | – | Heat-denatured | – | – | + | ++ | |
Natural pH | – | + | + | ++ | ||||
+ | – | – | Heat-denatured | – | – | – | – | |
Natural pH | – | – | – | – | ||||
++ | – | – | Heat-denatured | – | ++ | ++ | +++ | |
Natural pH | – | + | +++ | +++ | ||||
+ | – | – | Heat-denatured | – | + | + | ++ | |
Natural pH | – | + | ++ | +++ |