Macrocystis pyrifera extract residual as nutrient source for the production of sophorolipids compounds by marine yeast rhodotorula rubra
Author
dc.contributor.author
Leyton, Alison
Author
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Araya, Michael
Author
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Tala, Fadia
Author
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Flores, Liset
Author
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Lienqueo Contreras, María Elena
Author
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Shene, Carolina
Admission date
dc.date.accessioned
2021-11-05T13:37:44Z
Available date
dc.date.available
2021-11-05T13:37:44Z
Publication date
dc.date.issued
2021
Cita de ítem
dc.identifier.citation
Molecules 2021, 26, 2355
es_ES
Identifier
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10.3390/molecules26082355
Identifier
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https://repositorio.uchile.cl/handle/2250/182604
Abstract
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Seaweed processing generates liquid fraction residual that could be used as a low-cost nutrient source for microbial production of metabolites. The Rhodotorula strain is able to produce antimicrobial compounds known as sophorolipids. Our aim was to evaluate sophorolipid production, with antibacterial activity, by marine Rhodotorula rubra using liquid fraction residual (LFR) from the brown seaweed Macrocystis pyrifera as the nutrient source. LFR having a composition of 32% w/w carbohydrate, 1% w/w lipids, 15% w/w protein and 52% w/w ash. The best culture condition for sophorolipid production was LFR 40% v/v, without yeast extract, artificial seawater 80% v/v at 15 degrees C by 3 growth days, with the antibacterial activity of 24.4 +/- 3.1 % on Escherichia coli and 21.1 +/- 3.8 % on Staphylococcus aureus. It was possible to identify mono-acetylated acidic and methyl ester acidic sophorolipid. These compounds possess potential as pathogen controllers for application in the food industry.
es_ES
Patrocinador
dc.description.sponsorship
Comision Nacional de Investigacion Cientifica y Tecnologica (CONICYT)
CONICYT FONDECYT 3170610
Centre for Biotechnology and Bioengineering (CeBiB) FB-000
Fondequip EQM150055
Comision Nacional de Investigacion Cientifica y Tecnologica (CONICYT) PAI 79160069
es_ES
Lenguage
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en
es_ES
Publisher
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MDPI
es_ES
Type of license
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Attribution-NonCommercial-NoDerivs 3.0 United States