Phytochemical prospection, antioxidant and antimicrobial activities of leaves extracts from Myrcia palustris dc
International Journal of Development Research
Phytochemical prospection, antioxidant and antimicrobial activities of leaves extracts from Myrcia palustris dc
Received 18th December, 2020; Received in revised form 22nd December, 2020; Accepted 09th January, 2021; Published online 28th February, 2021
Copyright © 2021, Camila Vogt dos SANTOS et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
The objective of this work was to carry out an investigation regarding phytochemical prospecting of six extracts obtained from leaves of Myrcia palustris DC, namely: ethyl acetate (EAE), acetone (AE), ethanolic (EE), methanolic (ME), hexanic (HE) and distilled water (DAE), to evaluate their antimicrobial activity using the broth microdilution technique, with bacteria of medical interest, and detecting the antioxidant potential against the 2,2-diphenyl-1-picryl-hydrazil (DPPH) method. The results demonstrated the presence of compounds from the classes steroids, flavonoids, xanthones, and tannins. Regarding antimicrobial activity, it was observed that all extracts demonstrated antimicrobial potential against the strains tested, except for theHE, which did not show activity on K. pneumoniae. DAE showed the lowest efficiency for most of the strains tested. Regarding antioxidant activity, except from DAE, all others showed antioxidant potential in the highest concentrations tested in the range of 0.1 to 25 mg/mL:EE (82.29%), ME (77.67%), and AE (74.10%) showed greater capture of DPPH radicals. It is suggested that the antimicrobial and antioxidant activities of these extracts is related to the secondary metabolites present, which have already had these biological activities demonstrated in other studies with plant extracts.
