Repositorio UVigo

Macroalgae as a source of valuable antimicrobial compounds: extraction and applications

Investigo Repository

Macroalgae as a source of valuable antimicrobial compounds: extraction and applications

Soares Da Silva, María Aurora; Silva, Sofia A.; Carpena Rodríguez, María; García Oliveira, Paula; Gullón Estévez, Patricia; Barroso, M. Fátima; Prieto Lage, Miguel Angel; Simal Gandara, Jesus
 
DATE : 2020-09-25
UNIVERSAL IDENTIFIER : http://hdl.handle.net/11093/1801
UNESCO SUBJECT : 2414.08 Procesos Microbianos ; 2417.07 Algología (Ficología) ; 3328 Procesos Tecnológicos
DOCUMENT TYPE : article

ABSTRACT :

In the last few decades, attention on new natural antimicrobial compounds has arisen due to a change in consumer preferences and the increase in the number of resistant microorganisms. Macroalgae play a special role in the pursuit of new active molecules as they have been traditionally consumed and are known for their chemical and nutritional composition and their biological properties, including antimicrobial activity. Among the bioactive molecules of algae, proteins and peptides, polysaccharides, polyphenols, polyunsaturated fatty acids and pigments can be highlighted. However, for the complete obtaining and incorporation of these molecules, it is essential to achieve easy, profitable and sustainable recovery of these compounds. For this purpose, novel liquid–liquid and solid–liquid extraction techniques have been studied, such as supercritical, ultrasound, microwave, enzymatic, high pressure, accelerated solvent and intensity pulsed electric fields extraction techniques. Moreover, different applications have been proposed for these compounds, such as preservatives in the food ... [+]
In the last few decades, attention on new natural antimicrobial compounds has arisen due to a change in consumer preferences and the increase in the number of resistant microorganisms. Macroalgae play a special role in the pursuit of new active molecules as they have been traditionally consumed and are known for their chemical and nutritional composition and their biological properties, including antimicrobial activity. Among the bioactive molecules of algae, proteins and peptides, polysaccharides, polyphenols, polyunsaturated fatty acids and pigments can be highlighted. However, for the complete obtaining and incorporation of these molecules, it is essential to achieve easy, profitable and sustainable recovery of these compounds. For this purpose, novel liquid–liquid and solid–liquid extraction techniques have been studied, such as supercritical, ultrasound, microwave, enzymatic, high pressure, accelerated solvent and intensity pulsed electric fields extraction techniques. Moreover, different applications have been proposed for these compounds, such as preservatives in the food or cosmetic industries, as antibiotics in the pharmaceutical industry, as antibiofilm, antifouling, coating in active packaging, prebiotics or in nanoparticles. This review presents the main antimicrobial potential of macroalgae, their specific bioactive compounds and novel green extraction technologies to efficiently extract them, with emphasis on the antibacterial and antifungal data and their applications. [-]

Show full item record



Files in this item

Atribución 4.0 Internacional Except where otherwise noted, this item's license is described as Atribución 4.0 Internacional
2013 Universidade de Vigo, Todos los derechos reservados
Calidad So9001