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Molecules

Title:		Determination of Volatile Organic Compounds and Antibacterial Activity of the Amazonian Cyanobacterium Synechococcus sp. Strain GFB01
Author(s):		do Amaral SC; Santos AV; da Cruz Schneider MP; da Silva JKR; Xavier LP;
Address:		"Laboratory of Biotechnology of Enzymes and Biotransformation, Biological Sciences Institute, Federal University of Para, Belem 66075-110, Brazil. Center of Genomics and Systems Biology, Biological Sciences Institute, Federal University of Para, Belem 66075-110, Brazil"
Journal Title:		Molecules
Year:		2020
Volume:		20201016
Issue:		20
Page Number:		-
DOI:		10.3390/molecules25204744
ISSN/ISBN:		1420-3049 (Electronic) 1420-3049 (Linking)
Abstract:		"Cyanobacteria exhibit great biotechnological potential due to their capacity to produce compounds with various applicability. Volatile organic compounds (VOCs) possess low molecular weight and high vapor pressure. Many volatiles produced by microorganisms have biotechnological potential, including antimicrobial activity. This study aimed to investigate the VOCs synthesized by cyanobacterium Synechococcus sp. strain GFB01, and the influence of nitrate and phosphate on its antibacterial potential. The strain was isolated from the surface of the freshwater lagoon Lagoa dos Indios, Amapa state, in Northern Brazil. After cultivation, the VOCs were extracted by a simultaneous distillation-extraction process, using a Likens-Nickerson apparatus (2 h), and then identified by GC-MS. The extracts did not display inhibitory activity against the Gram-positive bacteria tested by the disk-diffusion agar method. However, the anti-Salmonella property in both extracts (methanol and aqueous) was detected. The main VOCs identified were heptadecane (81.32%) and octadecyl acetate (11.71%). To the best of our knowledge, this is the first study of VOCs emitted by a cyanobacterium from the Amazon that reports the occurrence of 6-pentadecanol and octadecyl acetate in cyanobacteria"
Keywords:		Anti-Bacterial Agents/*chemistry/isolation & purification/pharmacology Brazil Distillation Fresh Water/chemistry Gas Chromatography-Mass Spectrometry Gram-Positive Bacteria/*drug effects Nitrates/chemistry Phosphates/chemistry Synechococcus/*chemistry Vol;
Notes:		"Medlinedo Amaral, Samuel Cavalcante Santos, Agenor Valadares da Cruz Schneider, Maria Paula da Silva, Joyce Kelly Rosario Xavier, Luciana Pereira eng Switzerland 2020/10/22 Molecules. 2020 Oct 16; 25(20):4744. doi: 10.3390/molecules25204744"