Antibacterial and Antioxidant Properties of the Methanolic Extract of the Stem Bark of Pteleopsis hylodendron (Combretaceae)

Table 4

Antioxidant potential of the crude extract and fractions of P. hylodendron and L- ascorbic acid in DPPH assay.

Substances tested	% inhibition concentration (𝜇g/mL)
	1000	500	100	50	10
FA	21.26±0.24^f	19.69±0.17^i	11.83±0.47^ef	05.28±0.26^j	1.86±0.17^m
FB	22.40±0.94^f	18.80±0.10^j	09.19±0.20^f	08.83±0.34^i	04.20±0.17^l
FC	42.58±0.50^e	28.16±0.29^h	12.31±0.41^e	10.87±0.38^h	08.65±0.00^k
FD	67.98±0.72^d	52.13±0.10^g	20.24±0.45^d	17.83±0.28^g	10.81±0.37^j
FE	95.73±0.26^bc	94.95±0.00^d	94.05±0.14^a	91.77±0.33^cd	26.30±0.20^h
FF	95.37±0.10^bc	94.65±0.10^d	93.75±0.10^a	93.33±0.14^ab	83.42±0.48^d
FG	97.83±0.37^ab	95.55±0.17^c	94.65±0.17^a	92.79±0.29^bc	91.89±0.28^b
FH	98.79±0.33^ab	96.21±0.13^b	94.47±0.26^a	94.29±0.26^a	94.05±0.20^a
FI	95.49±0.14^bc	94.83±0.17^d	93.93±0.33^a	92.67±0.38^bc	70.08±0.64^f
FJ	95.85±0.00^bc	95.13±0.14^cd	93.57±0.30^a	93.21±0.17^ab	74.23±0.14^e
PH	95.13±0.14^bc	93.87±0.28^e	93.39±0.10^a	91.35±0.14^d	89.42±0.26^c
ASC	100.00±0.00^a	100.00±0.00^a	87.36±0.00^b	53.23±0.00^e	29.42±0.00^g

F: fraction; PH: methanolic extract of P. hylodendron; ASC: L-ascorbic acid.
a,b,c,d,e,f,g,h,i,j,k,l,mIn the same column, values carrying different letters in superscript are significantly different at 𝑃≤.05 (Waller Duncan test).