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Table 3 In vitro protein digestibility and antioxidant properties of okra seed flours, protein isolate and hydrolysates

From: Characterization of okra seed flours, protein concentrate, protein isolate and enzymatic hydrolysates

 

In vitro protein digestibility (%)

DPPH radical scavenging activities (%)

Metal chelating activities (%)

Ferric reducing antioxidant properties (mMFe2+)

WF

36.48 ± 1.45g

60.06 ± 0.12g

9.40 ± 0.56h

0.06 ± 0.01c

DF

44.77 ± 0.85f

68.65 ± 0.76f

12.45 ± 0.66g

0.06 ± 0.01c

PC

74.79 ± 0.96e

74.56 ± 1.13e

15.55 ± 0.95f

0.07 ± 0.02c

PI

80.90 ± 1.11d

85.38 ± 2.05b

29.05 ± 0.77e

0.07 ± 0.02c

PHp

85.39 ± 0.55b

91.47 ± 0.85a

81.00 ± 1.05c

0.11 ± 0.01b

PHc

83.26 ± 1.45c

85.50 ± .073b

78.50 ± 1.11d

0.14 ± 0.02b

PHT

86.06 ± 1.54a

84.89 ± 0.55c

90.30 ± 0.89b

0.12 ± 0.02b

Ascorbic acid

–

79.42 ± 0.69d

95.03 ± 1.32a

0.43 ± 0.07a

  1. Values are mean ± standard deviation of triplicate determinations. Values with the same superscript along same column are not significantly (p > 0.05) different from each other
  2. WF Whole flour, DF Defatted flour, PC Protein concentrate, PI Protein isolate, PHP Pepsin protein hydrolysate, PHC Pancreatin protein hydrolysate, PHT Trypsin protein hydrolysate