. 2017 Jun 24;6(3):46. doi: 10.3390/antiox6030046

Table 2.

IC₅₀* and antiradical efficiency of sunflower seed extracts (kernels, hulls and press residue) in different extraction types and solvents (UAE versus MAE).

Lyophilised Samples/Extraction Type	Kernels Aq.MeOH Extract ^a		Kernels MeOH Extract ^b		Press Residue Aq.MeOH Extract ^c
Lyophilised Samples/Extraction Type	IC₅₀	AE	IC₅₀	AE	IC₅₀	AE
MAE extraction	38.5 ± 5.0	0.030	106.6 ± 3.4	0.010	36.2 ± 1.6	0.030
UAE extraction	9.8 ± 1.1	0.121	87.6 ± 1.4	0.014	35.2 ± 1.3	0.022
Lyophilised Samples/Extraction Type	Hulls Aq.MeOH Extract ^a		Hulls MeOH Extract ^b		Press Residue MeOH Extract ^c
Lyophilised Samples/Extraction Type	IC₅₀	AE	IC₅₀	AE	IC₅₀	AE
MAE extraction	79.5 ± 0.7	0.015	123.1 ± 0.9	0.010	38.8±1.1	0.010
UAE extraction	36.8 ± 1.5	0.030	126.6 ± 0.8	0.010	40.5±5.0	0.010

Values are mean ± S.E calculated from three different experiments performed in duplicate. Significant differences (p < 0.05) are shown by ^a,b,c letters in the same column; Statistical analysis was performed with GraphPad Instat 3 software, using the non-parametric Mann-Whitney test. Abbreviations used: MAE: Microwave Assisted Extraction; UAE: Ultrasound Assisted Extraction. * IC₅₀ values are expressed in mg/mL.