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Table 3 IC50 of α-amylase and α-glucosidase inhibition of different seed extracts

From: Effect of solvents extraction on phytochemical components and biological activities of Tunisian date seeds (var. Korkobbi and Arechti)

Samples IC50 (mg/ml)
α-amylase α-glucosidase
Acarbose 0,23 ± 0,01 0,16 ± 0,02
KS Methanol extract 1,31 ± 0,08* 0,65 ± 0,05
Aqueous extract 0,78 ± 0,05 0,35 ± 0,09
Acetone 80% extract 2,33 ± 0,6** 2,56 ± 0,9**
Acetone100% extract 2,47 ± 0,8** 2,40 ± 0,79**
AS Methanol extract 1,65 ± 0,1* 1,31 ± 0,8*
Aqueous extract 0,99 ± 0,2* 0,77 ± 0,05
Acetone 80% extract 2,88 ± 0,83** 2,72 ± 0,78**
Acetone100% extract 3,66 ± 0,99** 2,85 ± 0,86**
  1. Data expressed as means ± standard deviations of three independent extractions (n = 3)
  2. IC50: the concentration at which 50% of enzyme is inhibited
  3. KS Korkobbi seed, AS Arechti seed
  4. *Significant difference for P < 0.05 and **Significant difference for P < 0.01