Total Polyphenol and Flavonoid Content and Antioxidant Capacity of Some Varieties of Persea americana Peels Consumed in Cameroon

Table 3

Correlation coefficients and values between the bioactive compounds of different peelings extracts and different methods used to assess the antioxidant activity.

Solvents	Antioxidant tests	Total phenolic	Flavonoids
AE	DPPH	R^2 = 0.322,	R^2 = −0.077,
	FRAP	R^2 = 0.577,	R^2 = 0.522,
	TAC	R^2 = 0.249,	R^2 = −0.229,
HE	DPPH	R^2 = 0.450,	R^2 = 0.340,
	FRAP	R^2 = 0.657,	R^2 = 0.705,
	TAC	R^2 = 0.383,	R^2 = 0.554,
EE	DPPH	R^2 = 0.412,	R^2 = 0.355,
	FRAP	R^2 = 0.289,	R^2 = 0.419,
	TAC	R^2 = 0.494,	R^2 = 0.245,

AE, aqueous extract; HE, hydroethanolic extract; EE, ethanolic extract; DPPH,2, 2-diphenyl-1 picrylhydrazyl; FRAP, ferric reducing antioxidant power; TAC, total antioxidant capacity.