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Physiochemical properties of cysteine endopeptidases derived from pineapple plants [1,13,15,22,23,24].
| Stem Bromelain | Fruit Bromelain | Ananain | Comosain | |
|---|---|---|---|---|
| Source | Pineapple stem | Pineapple fruit | Pineapple stem | Pineapple stem |
| Molecular weight [kDa] | 23.8–37.0 | 23.0–32.5 | 23.4–25.0 | 24.4–24.5 |
| Isoelectric point | ≥9.5 | 4.6 | >10 | >10 |
| Amino acid sequence | 212, 291, 285 | 326, 351 | 216 | 186 |
| Optimum T [°C] | 40–60 | 37–70 | / | / |
| Optimum pH | 4–8 | 3–8 | / | / |
| Presence of Glycoproteins | Yes | Yes/No | No | Yes |
