Skip to main content
. 2012 May 18;17(5):5915–5923. doi: 10.3390/molecules17055915

Table 2.

1/EC50 of α-glucosidase, α-amylase and DPPH activity, TPC and yield of ethanolic extraction of various plant extracts.

Plant Extracts Part Ethanol
1/EC50 (mg/mL) TPC,GAE (mg/g) % Yield of Extraction
α-Glucosidase α-Amylase DPPH
Azadirachta indica Leaf 39.8 ± 13.2 2.7 ± 0.9 1.2 ± 0.2 53.6 ± 12.5 14.4 ± 13.2
Artocarpus champeden Leaf 91.7 ± 10.4 ND * 7.1 ± 1.1 556.2 ± 28.2 27.8 ± 9.6
Garcinia mangostana Rind 200.0 ± 28.2 41.7 ± 3.2 11.9 ± 4.1 600.0 ± 34.9 22.0 ± 7.5
Nephelium lappaceum Rind 370.4 ± 31.6 14.1 ± 8.5 15.7 ± 5.3 809.6 ± 53.2 33.2 ± 16.3
Nephelium lappaceum Leaf 400.0 ± 45.7 31.2 ± 9.4 8.8 ± 1.2 321.0 ± 21.5 18.8 ± 7.3
Peltophorum pterocarpum Leaf 292.3 ± 17.5 65.4 ±10.1 5.7 ± 13.2 256.2 ± 35.7 15.4 ± 2.4
Peltophorum pterocarpum Bark 1,666.7 ± 596.4 400.0 ± 43.2 32.1 ± 18.6 797.6 ± 383.2 20.0 ± 11.2
Peltophorum pterocarpum Pod 1,111.1 ± 857.3 49.3 ± 21.9 12.6 ± 10.2 372.6 ± 193.7 15.8 ± 7.5
Peltophorum pterocarpum Flower 2,500.0 ± 966.8 123.5 ± 93.2 20.1 ± 17.3 594.0 ± 213.1 17.6 ± 12.4
Syzygium aqueum Leaf 344.8 ± 175.3 23.6 ± 13.2 8.4 ± 5.6 265.4 ± 178.9 14.0 ± 12.5
Syzygium cumini Leaf 769.2 ± 323.7 45.9 ± 28.2 10.9 ± 1.2 371.0 ± 197.6 1.0 ± 0.5
Syzygium cumini Bark 400.0 ± 245.8 21.0 ± 17.3 6.6 ± 3.8 303.4 ± 153.8 2.8 ± 1.6
Syzygium cumini Seed 625.0 ± 254.7 9.2 ± 75.8 9.1 ± 8.2 375.4 ± 268.1 8.0 ± 5.7
Vitis vinifera (Grape) Seed 357.1 ±265.9 227.3 ± 145.9 34.8 ± 29.1 834.8 ± 475.5 2.6 ± 1.2
Acarbose 0.286 ± 0.08 83.3 ± 25.9

* ND, Not detected.