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Table 1 Effect of solvents extraction on antioxidant activity (IC50. mg mL−1) of both date palm seeds

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

Extracts IC 50
DPPH ABTS FRAP TBARS
KS Methanol extract 0,74 ± 0,02b 0,40 ± 0,09a 0,27 ± 0,01b 0,42 ± 0,02a
Aqueous extract 0,35 ± 0,01a 0,37 ± 0,03a 0,12 ± 0,01a 0,32 ± 0,02a
Acetone 80% 1,41 ± 0,81c 0,82 ± 0,04b 0,46 ± 0,03c 0,75 ± 0,09b
Acetone 100% 1,88 ± 0,67d 1,13 ± 0,34c 0,73 ± 0,045d 0,99 ± 0,07c
AS Methanol extract 0,61 ± 0,04B 0,53 ± 0,05A 0,26 ± 0,01A 0,47 ± 0,09A
Aqueous extract 0,58 ± 0,09A 0,48 ± 0,07A 0,19 ± 0,01A 0,42 ± 0,05A
Acetone 80% 1,61 ± 0,53C 1,19 ± 0,98B 0,71 ± 0,08B 0,98 ± 0,09B
Acetone 100% 2,01 ± 0,98D 1,40 ± 0,65B 0,86 ± 0,04B 1,22 ± 0,07C
  1. Data expressed as means ± standard deviations of three independent extractions (n = 3)
  2. IC50: The concentration at which 50% of radicals are scavenged, Fe3+ is reduced and TBARS is inhibited
  3. Different lower case letters and capital letters in the same column for each type of material indicate significant effect differences between the different used solvents extraction (P < 0.05)
  4. KS Korkobbi seed, AS Arechti seed