Slow pyrolysis of Terminalia catappa L. municipal solid waste and the use of the aqueous fraction produced for bovine mastitis control.

Autor:	Vinturelle R; Laboratory of Pest and Parasite Studies - Federal Fluminense University-Institute of Biology- Department of Cellular and Molecular Biology - Niterói, RJ, Brazil, CEP 24210-201.; Postgraduate Program in Science and Biotechnology - Federal Fluminense University - Niterói, RJ, CEP: 24.210-201, Brazil., Cabral TDS; Postgraduate Program in Chemistry - Federal Fluminense University - Niterói, RJ, CEP; 24.020-141, Brazil.; Laboratory of Synthesis, Chromatography and Environment (SINCROMA) - Federal Fluminense University - Institute of Chemistry - Department of Organic Chemistry - Niterói, RJ, Brazil., Oliveira PCO; Postgraduate Program in Chemistry - Federal Fluminense University - Niterói, RJ, CEP; 24.020-141, Brazil.; Laboratory of Synthesis, Chromatography and Environment (SINCROMA) - Federal Fluminense University - Institute of Chemistry - Department of Organic Chemistry - Niterói, RJ, Brazil., Salles JP; Laboratory of Studies in Experimental Pharmacology, Federal University of Rio de Janeiro, Ilha do Fundão, Rio de Janeiro, RJ, 21941-590, Brazil., Faria JV; Laboratory for Environmental Health Assessment and Promotion, Oswaldo Cruz Institute, Manguinhos, Rio de Janeiro, RJ, 21040-900, Brazil., Teixeira GP; Laboratory for Environmental Health Assessment and Promotion, Oswaldo Cruz Institute, Manguinhos, Rio de Janeiro, RJ, 21040-900, Brazil., Faria RX; Postgraduate Program in Science and Biotechnology - Federal Fluminense University - Niterói, RJ, CEP: 24.210-201, Brazil.; Laboratory for Environmental Health Assessment and Promotion, Oswaldo Cruz Institute, Manguinhos, Rio de Janeiro, RJ, 21040-900, Brazil., Veloso MCC; Laboratory of Synthesis, Chromatography and Environment (SINCROMA) - Federal Fluminense University - Institute of Chemistry - Department of Organic Chemistry - Niterói, RJ, Brazil., Romeiro GA; Postgraduate Program in Chemistry - Federal Fluminense University - Niterói, RJ, CEP; 24.020-141, Brazil.; Laboratory of Synthesis, Chromatography and Environment (SINCROMA) - Federal Fluminense University - Institute of Chemistry - Department of Organic Chemistry - Niterói, RJ, Brazil., Chagas ED; Laboratory of Pest and Parasite Studies - Federal Fluminense University-Institute of Biology- Department of Cellular and Molecular Biology - Niterói, RJ, Brazil, CEP 24210-201.; Postgraduate Program in Science and Biotechnology - Federal Fluminense University - Niterói, RJ, CEP: 24.210-201, Brazil.; National Institute of Sciences and Technology - Molecular Entomology INCT-EM - Brazil, Rio de Janeiro, Brazil.
Jazyk:	angličtina
Zdroj:	Biochemistry and biophysics reports [Biochem Biophys Rep] 2024 Apr 09; Vol. 38, pp. 101704. Date of Electronic Publication: 2024 Apr 09 (Print Publication: 2024).
DOI:	10.1016/j.bbrep.2024.101704
Abstrakt:	The Terminalia catappa L. tree is an ornamental and shade tree producter of a large amount of biological waste sent to landfills. Therefore, this plant constitutes so-called municipal solid wood waste (MSWW), which causes undesirable impacts on the environment, such as the generation of methane through the action of microorganisms. Sustainable solutions for the proper use and disposal of MSWW are a topic that has assumed great relevance at present due to the high quantities of MSWW generated worldwide. Pyrolysis constitutes an attractive alternative for the sustainable use of MSWW to produce higher value-added products. This study investigated the slow pyrolysis of Terminalia catappa L. fruit and the use of the aqueous fraction produced for bovine mastitis control. We obtained four fractions from the pyrolysis process, with average yields of the aqueous phase (36.22 ± 2.0 %), bio-oil (5.52 ± 0.4 %), biochar (37.55 ± 2.8 %) and gas (20.71 ± 2.0 %). The aqueous fraction was extracted with organic solvents and analyzed by gas chromatography coupled to mass spectrometry (GC‒MS). The extracts were composed mainly of phenols (50 %), furan derivatives, cyclic ketones, and others with lower contents, such as alcohols and esters. The aqueous fraction had bactericidal activity against Staphylococcus aureus, Klebsiella pneumoniae, Pseudomonas aeruginosa and Escherichia coli, which are responsible for bovine mastitis. In addition, the fraction showed low cytotoxicity against a murine melanoma cell line from a C57BL/6J mouse, B16F10 cells and mouse peritoneal cells. Competing Interests: The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. (© 2024 The Authors. Published by Elsevier B.V.)
Databáze:	MEDLINE
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