Table 4.

The first inhibition of β-carotene bleaching assay (%).

Concentrations	The absorbance at 490 nm of plant extracts
	0.2 mg/mL	0.4 mg/mL	0.6 mg/mL	0.8mg/mL	1 mg/mL
P. Major	42.37	43.97	44.94	45.85	46.37
P. Lanceoalata	43.04	44.31	45.45	46.77	48.54
R. pseudoacacia	41.69	42.49	42.6	42.88	43.04
A. hippocastanum	41.74	43.68	44.14	44.98	45.8
P. orientalis	36.03	39.52	43.57	44.26	46.31
Control	92.34	92.98	93.21	93.68	94.55

All tests were performed as triplicate and the results are showed as mean of data in the table