Table 3 Antioxidant activities of propolis nano-capsules bioactive compounds.

From: Characterization and stability evaluation of Egyptian propolis extract nano-capsules and their application

Items

Antioxidant activity of propolis

Ethanol extract

SCF-CO2 extract at 50 °C

Free extract

Nano-capsules

Free extract

Nano-capsules

TPC (mgGA/G)

318.36 ± 3.8a

286.12 ± 3.2ab

395.22 ± 4.1b

381.86 ± 3.9ab

TFC (QE/G)

653.73 ± 6.8c

561.58 ± 7.1b

745.42 ± 8.4d

736.92 ± 8.0cd

RP (Abs)

0.624 ± 0.05b

0.692 ± 0.05c

0.472 ± 0.03a

0.484 ± 0.03ab

DPPH (%)

76.73 ± 2.8b

64.88 ± 2.6a

96.54 ± 3.1c

92.57 ± 2.9c

TAA (%)

85.092 ± 4.62ab

76.183 ± 4.31a

92.173 ± 5.02c

89.584 ± 4.81b

  1. TPC total polyphenolic content, TFC total flavonoids content, SCF-CO2 super critical fluid-carbon dioxide, RP reducing power, TAA total antioxidant activity.
  2. Different superscripts in the same column or row are significant differences at P ≤ 0.05 level.