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Table 2 Inhibition of PPA activity based on starch-iodine color assay by solvent extractsa of different plants at 0.1-1.5 mgml-1 (w/v)

From: Potent α-amylase inhibitory activity of Indian Ayurvedic medicinal plants

Plant Species Extracts
  CWE HWE ME IPE AE MTBE CHE
A. digitata (Leaves) - - - - - - -
A. sativum (Rhizomes) - - - - - - -
A. vera (Leaf Gel) + - - - - - +
C. fistula (Leaves) + + + + - + +
C. roseus (Leaves) - - - - - - -
C. verum (Bark) - - - - - - -
C. indica. (Fruit) - - - - - - -
L. usitatisumum (Seeds) - - - + + + -
M. indica (Leaves) - - - - - - -
M. indica (Fruit) - - - - - - -
M. alba (Leaves) - - + + - - -
N. indicum (Leaves) - - - - - - -
O. tenuiflorum (Leaves) - - - + - - -
P. nigrum (Seed) - - - - - - -
T. chebula (Fruit) - - - - - - -
T. cordifolia (Stem) - - - - - - -
T. foenum (Seeds) + + + + + + +
Z. officinallis (Rhizomes) - - - - - - -
Acarbose (6.5 - 32.8 μgml-1) +       
  1. a Extracts were sequentially prepared as described in Methods.
  2. +: Inhibition
  3. -: No Inhibition
  4. CWE: Cold water Extract
  5. HWE: Hot water Extract
  6. ME: Methanol Extract
  7. IPE: Isopropanol Extract
  8. AE: Acetone Extract
  9. MTBE: Methyl-tertiary-butyl Ether Extract
  10. CHE: Cyclohexane Extract