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Table 3 The antioxidant activities of E. caeruleum inflorescence [63]

From: Eryngium caeruleum: an update on ethnobotany, phytochemistry and biomedical applications

Extraction method

Fe2+ chelating ability, IC50 (µg/mL)

NO scavenging activity, IC50 (µg/mL)

DPPH radical scavenging, IC50 (µg/mL)

Ultrasonic

286 ± 9.2

2416 ± 69.6

188.7 ± 7.2

Percolation

421 ± 13.6

390 ± 11.4

177.3 ± 5.9

Soxhlet

272 ± 6.3

583 ± 9.8

83.1 ± 2.1

  1. aIC50 of BHA (butylated hydroxyanisole) was 53.8 ± 3.7 μg/mL
  2. bIC50 for quercetin was 155.0 ± 6.4 μg/mL
  3. cEDTA used as control (IC50 = 17.4 ± 0.4 μg/mL)