Evaluation of Antibacterial, Antifungal, and Antioxidant Activities of Safflower Natural Dyes during Flowering

Table 2

Precarthamin and carthamin contents (𝜇g/g DW) and antioxidant capacities in flowers of C. tinctorius at two Tunisian regions at flowering stage.

Compound	Content (𝜇g/g DW)	Region	Antioxidant activity
			FRAP^A	DPPH^B	Chelating power^C
Carthamin	42.05 ± 1.52^a	Beja	210.33 ± 0.25^a	1.23 ± 0.12^b	9.23 ± 0.20^b
	25.97 ± 0.72^b	Tunis	166.01 ± 0.55^b	1.86 ± 0.55^a	10.88 ± 0.06^a
Precarthamin	902.41 ± 1.52^a	Beja	98.26 ± 0.01^a	2.98 ± 0.54^b	11.01 ± 0.29^b
	789.86 ± 0.78^b	Tunis	72.14 ± 0.58^b	4.01 ± 0.01^a	15.89 ± 0.28^a
Synthetic antioxidants
BHT				16.00 ± 0.02
EDTA					100.00 ± 0.01
Blank			52.11 ± 0.01

AThe FRAP values were expressed in TE 𝜇M/mL and ^B,CIC₅₀ values were expressed in 𝜇g/mL. Data are reported as means ± SD (𝑛=3) and compared to control (C). ANOVA is followed by Duncan multiple range test (𝑃<0.05). Values in the same column with different superscripts (a-b) are significantly different at 𝑃<0.05.