Please use this identifier to cite or link to this item:
https://hdl.handle.net/10316/96710
Title: | Microalgae and Cyanobacteria Strains as Producers of Lipids with Antibacterial and Antibiofilm Activity | Authors: | Cepas, Virginio Gutiérrez-Del-Río, Ignacio López, Yuly Redondo-Blanco, Saúl Gabasa, Yaiza Iglesias, María José Soengas, Raquel Fernández-Lorenzo, Andrés López-Ibáñez, Sara Villar, Claudio J. Martins, Clara B. Ferreira, Joana D. Assunção, Mariana F. G. Santos, Lília M. A. Morais, João Castelo-Branco, Raquel Reis, Mariana A. Vasconcelos, Vitor López-Ortiz, Fernando Lombó, Felipe Soto, Sara M. |
Keywords: | Antibiofilm; Antimicro-bial; Cyanobacteria; Free fatty acids; Glycoglycerolipids; Human pathogens; Microalgae; Phospholipids | Issue Date: | 2021 | Project: | info:eu-repo/grantAgreement/EC/H2020/634588/EU/Novel marine biomolecules against biofilm. Application to medical devices. | Serial title, monograph or event: | Marine Drugs | Volume: | 19 | Issue: | 12 | Abstract: | Lipids are one of the primary metabolites of microalgae and cyanobacteria, which enrich their utility in the pharmaceutical, feed, cosmetic, and chemistry sectors. This work describes the isolation, structural elucidation, and the antibiotic and antibiofilm activities of diverse lipids produced by different microalgae and cyanobacteria strains from two European collections (ACOI and LEGE-CC). Three microalgae strains and one cyanobacteria strain were selected for their antibacterial and/or antibiofilm activity after the screening of about 600 strains carried out under the NoMorFilm European project. The total organic extracts were firstly fractionated using solid phase extraction methods, and the minimum inhibitory concentration and minimal biofilm inhibitory concentration against an array of human pathogens were determined. The isolation was carried out by bioassay-guided HPLC-DAD purification, and the structure of the isolated molecules responsible for the observed activities was determined by HPLC-HRESIMS and NMR methods. Sulfoquinovosyldiacylglycerol, monogalactosylmonoacylglycerol, sulfoquinovosyl-monoacylglycerol, α-linolenic acid, hexadeca-4,7,10,13-tetraenoic acid (HDTA), palmitoleic acid, and lysophosphatidylcholine were found among the different active sub-fractions selected. In conclusion, cyanobacteria and microalgae produce a great variety of lipids with antibiotic and antibiofilm activity against the most important pathogens causing severe infections in humans. The use of these lipids in clinical treatments alone or in combination with antibiotics may provide an alternative to the current treatments. © 2021 by the authors. Licensee MDPI, Basel, Switzerland. | URI: | https://hdl.handle.net/10316/96710 | ISSN: | 1660-3397 | DOI: | 10.3390/md19120675 | Rights: | openAccess |
Appears in Collections: | I&D QFM-UC - Artigos em Revistas Internacionais |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
marinedrugs-19-00675.pdf | 1.6 MB | Adobe PDF | View/Open |
SCOPUSTM
Citations
20
checked on Oct 14, 2024
WEB OF SCIENCETM
Citations
20
checked on Oct 2, 2024
Page view(s)
227
checked on Oct 22, 2024
Download(s)
129
checked on Oct 22, 2024
Google ScholarTM
Check
Altmetric
Altmetric
This item is licensed under a Creative Commons License