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Table 3 Total polyphenols, anthocyanins and antioxidant activity of tested extracts

From: Polyphenols profile and antioxidant activity of skin and pulp of a rare apple from Marche region (Italy)

 

Total polyphenols mg/g FW

Total anthocyanins μg/g FW

DPPH assay EC50mg DW/mL

Lipoxygenase assay IC50μg DW/mL

ORAC μmol Trolox eq./g DW

Ethanolic extract (peel)

3.21 ± 0.26c

124.60 ± 9.23c

0.10 ± 0.02a

0.10 ± 0.01a

44.07 ± 3.74c

Ethanolic extract (flesh)

1.67 ± 0.15b

53.94 ± 8.64b

0.13 ± 0.01a

0.33 ± 0.02b

23.19 ± 2.41a

Aqueous extract (peel)

1.45 ± 0.17b

11.53 ± 1.36a

0.59 ± 0.05b

446 ± 48.7

31.99 ± 3.52b

Aqueous extract (flesh)

0.36 ± 0.04a

6.29 ± 0.53a

0.58 ± 0.03b

3688 ± 35.27

42.97 ± 4.73c

BHT

  

0.087 ± 0.012

3.86 ± 0.25

 

Trolox

  

0.007 ± 0.001

11.89 ± 1.22

 

Ascorbic acid

  

0.110 ± 0.007

18.63 ± 1.31

 
  1. The values are the average of three determinations (+ - SD). Significant differences among the means are evaluated using Bonferroni's multiple comparison test. Values with the same letters in a column are not significantly different at the 0.05 probability level. The letters are given following increasing values.