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Marcelo Da Silva Pedro

2 papers in the library · 2 citations · publishing 2025

Papers

Extraction and Characterization of N,N-Dimethyltryptamine from Mimosa tenuiflora: A Multivariate Approach

ACS Omega September 16, 2025 Lucas Cordeiro de Oliveira, Taynah Pereira Galdino, Marcelo Da Silva Pedro et al. 1 citation

N,N-Dimethyltryptamine (DMT), a plant-derived alkaloid, shows therapeutic potential for mental health disorders. An efficient method was established to extract, isolate, and characterize DMT from Mimosa tenuiflora, comparing root bark and stem bark. The stem bark method (sample 2C) yielded 3.45% pure DMT (0.172 g from 5.0003 g powder) and a robust phytochemical profile with alkaloids, tannins, and flavonoids. Characterization confirmed DMT identity via FTIR, HPLC-DAD (retention time 11.81 min), and GC-MS (retention time 16.4 min, 88% spectral similarity). Thermogravimetric analysis showed thermal stability up to 135 °C. Cellular viability exceeded 85% at therapeutic concentrations, with reduction only at 100 μg/mL (53 ± 21%), possibly due to overexposure. Sample 2C is a promising candidate for standardized DMT pharmaceutical formulations.

Multianalytical Investigation of Psilocybe cubensis Mushrooms: Physicochemical Characterization and Biological Evaluation of Psilocybin and Psilocin Compounds

ACS Omega September 15, 2025 Taynah Pereira Galdino, Antônio Braz de Medeiros Bisneto, Marcelo Da Silva Pedro et al. 1 citation

An active pharmaceutical ingredient (API) extracted from Psilocybe mushrooms yielded approximately 20% of target compounds, with psilocybin and psilocin contents of 3.26% and 0.34%, respectively. The API showed high purity, stability, solubility in polar solvents, low toxicity, and compliance with limits for heavy metals and microbes. It is compatible with polymeric matrices for controlled release. The work demonstrates the feasibility of a standardized psilocybin-based API for treating mental disorders.