Skip to main content

Table 3 Comparison of EC50s of a range of plant extracts known to contain cysteine proteinase activity

From: Developing novel anthelmintics from plant cysteine proteinases

Enzyme

EC50(μM)

Milkweed latex extract

3

Ficin

5

Pineapple fruit extract

5

Chymopapain

7.5

Papain

7.5

Crude papaya latex

12.5

Stem bromelain

75

Ficus benjamina latex

140

Ficus carica latex

150

Kiwi fruit extract

None

  1. All values are in micromolar concentrations of enzyme activity, as determined by active site titration, that caused 50% reduction in motility after 90 minutes of incubation with H. bakeri