UPLC-MS-ESI-QTOF analysis and antifungal activity of aqueous extracts of Spondias tuberosa

Abstrakt

This study aimed to identify the chemical composition of the Spondias tuberosa aqueous leaf and root extracts (EALST and EARST) and to evaluate their effect, comparatively, against opportunistic pathogenic fungi. Ultra-Performance Liquid Chromatography Coupled to a Quadrupole/Time of Flight System (UPLC-MS-ESI-QTOF) was employed for chemical analysis. Candida albicans and C. tropicalis standard strains and clinical isolates were used (CA INCQS 40006, CT INCQS 40042, CA URM 5974, and CT URM 4262). The 50% Inhibitory Concentration for the fungal population (IC50) was determined for both the intrinsic action of the extracts and the extract/fluconazole (FCZ) associations. The determination of the Minimum Fungicidal Concentration (MFC) and the verification of effects over fungal morphological transitions were performed by subculture in Petri dishes and humid chambers, respectively, both based on micro-dilution. UPLC-MS-ESI-QTOF analysis revealed the presence of phenolic and flavonoid compounds. The association of the extracts with fluconazole, resulted in IC50 values from 2.62 µg/mL to 308.96 µg/mL. The MFC of the extracts was ≥16,384 µg/mL for all tested strains, while fluconazole obtained an MFC of 8192 µg/mL against C. albicans strains. A reduction in MFC against CA URM 5974 (EALST: 2048 µg/mL and EARST: 1024 µg/mL) occurred in the extract/fluconazole association.

Autorzy

Antonia Thassya Lucas dos Santos
Antonia Thassya Lucas dos Santos
Joara Nályda Pereira Carneiro
Joara Nályda Pereira Carneiro
Rafael Pereira da Cruz
Rafael Pereira da Cruz
Débora Lima Sales
Débora Lima Sales
Jacqueline Cosmo Andrade-Pinheiro
Jacqueline Cosmo Andrade-Pinheiro
Maria Audilene de Freitas
Maria Audilene de Freitas
Maria Regina Kerntopf
Maria Regina Kerntopf
Gyllyandeson De Araújo Delmondes
Gyllyandeson De Araújo Delmondes
Paulo Riceli Vasconcelos Ribeiro
Paulo Riceli Vasconcelos Ribeiro
Edy Sousa de Brito
Edy Sousa de Brito
Francisco Lucas Alves Batista
Francisco Lucas Alves Batista
Francisco Ernani Alves Magalhães
Francisco Ernani Alves Magalhães
Ivo C. Pita Neto
Ivo C. Pita Neto
Maria Flaviana Bezerra Morais-Braga
Maria Flaviana Bezerra Morais-Braga
Aleksandra Szopa
Aleksandra Szopa
Tomasz Baj
Tomasz Baj
Henrique Douglas Melo Coutinho
Henrique Douglas Melo Coutinho
artykuł
MOLECULES
Angielski
2023
28
1
305
otwarte czasopismo
CC BY 4.0 Uznanie autorstwa 4.0
ostateczna wersja opublikowana
w momencie opublikowania
2022-12-30
140
4,2
0
0