Ixora coccinea Enhances Cutaneous Wound Healing by Upregulating the Expression of Collagen and Basic Fibroblast Growth Factor

Table 2

Scavenging activity of different I. coccinea extracts against DPPH and superoxide anion free radicals and their Folin-Ciocalteu reagent (FCR) reducing capacity.

Ixora coccinea	Scavenging activity against DPPH radical (IC50  ± S.D.)	Scavenging activity against superoxide radical (IC50  ± S.D.)	FCR reducing capacity (mgGAc/gextract)
IxPE	NA	NA	0.5±0.04
IxCE	NA	NA	6.83±0.5
IxME	9.63±1.22	838.03±21.04	27.75±0.55
IxWE	26.01±2.66	655.06±17.83	12.32±0.43
Gallic acid	1.10±0.39	156.86±36.39	—

IC₅₀ values are expressed in 𝜇g/mL; NA: not active; S.D.: standard deviation; IC₅₀: amount of antioxidant necessary to scavenge the initial DPPH/superoxide radical by 50%; mg_GAc/g_extract: mg of gallic acid equivalent/gram of extract; GAc: gallic acid; IxPE: I. coccinea petroleum ether extract; IxCE: I. coccinea chloroform extract; IxME: I. coccinea methanol extract; IxWE: I. coccinea water extract.