Exploring the properties of neotropical funga: chemical profile, antioxidant and antimicrobial activities of Stiptophyllum erubescens (Berk.) Ryvarden

Striptophyllum erubescens is a neotropical basidiomycete widely distributed in South America. However, no records of its biological properties were found. Therefore, this work constitutes the first study of the chemical profile and of the antioxidant and antimicrobial properties of S. erubescens. A crude ethanolic extract and fractions with solvents of different polarities (hexane, ethyl ether, ethyl acetate, and aqueous residue) were obtained from wild basidiomata. Total phenols content and DPPH assays were performed. GC-MS was deployed to analyze the chemical composition of the fractions with the highest concentration of phenolic and antioxidant compounds. Antimicrobial activity was evaluated through the disk diffusion test. The ethyl caracteriacetate fraction obtained the highest concentration of phenolic and antioxidant compounds (172 ± 4 mg GAE g-1, and 185 mg AAE g-1, respectively), and antioxidant activity (85%). Alkanes and their derivatives, fatty acids, fatty alcohols, phenols, and a benzofuran derivative were found through GC-MS in the ethyl acetate and ethyl ether fractions. For the first time in a basidiomycete, 5-methyl-1-(2, 6, 6-trimethylcyclohexa-2,4 dien-1-yl)hexa-1,4-dien-3-one is reported. Neither crude extract nor fractions showed antimicrobial activity.

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Bibliographic Details
Main Authors: Mancuello Chaparro, Claudia Raquel, Benítez, Darío, Maubet, Yanine, Cristaldo, Enzo, Veloso, Brenda, Ferreira, Francisco, Campi, Michelle
Format: Digital revista
Language:spa
Published: Facultad de Ciencias Exactas y Naturales - Universidad Nacional de Asunción 2023
Online Access:https://revistascientificas.una.py/index.php/stevia/article/view/2914
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