Studies on Chemical Composition and Antioxidant Activity of Rudbeckia triloba

Table 5

Correlations between total antioxidant capacity and total phenolic content of extracts obtained from different aerial parts of Rudbeckia triloba.

Extract	Correlation (R^2)
Infusion	y = −18.132x + 42.952 (0.7760)
Decoct	y = −1.8133x + 72.736 (0.1939)
Macerate	y = −86.751x + 152.73 (0.9504)