Phytochemical and Antibacterial Investigations of the Extracts and Fractions from the Stem Bark of Hymenaea stigonocarpa Mart. ex Hayne and Effect on Ultrastructure of Staphylococcus aureus Induced by Hydroalcoholic Extract

Table 1

Yields, total phenols, and tannins from Hymenaea stigonocarpa extracts and fractions.

Extracts/fractions	Yield (%)	Total phenol content	Total tannin
Cyclohexane (CE)	0.35±0.02	0.00	0.00
Ethyl acetate (EAE)	2.65±0.22	6.63±0.13	1.82±0.17
Ethanolic (EE)	11.99±0.75	7.26±0.04	2.76±0.10^∗
Aqueous (AE)	2.09±0.06	4.95±0.02	1.46±0.06
Hydroalcoholic (HE)	15.49±056	6.96±0.09	2.96±0.08^∗
Aqueous (AF)	57.00±5.00	6.16±0.03	2.71±0.05^∗
Ethyl acetate (EAF)	22.10±2.20	7.12±0.03	2.00±0.04

Yield expressed in percentage (%).
Total phenols and total tannin contents expressed in mg GAE/g of dried samples.
*Means are not significantly different (𝑃<0.05).