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Title: Isolation and characterization of halophilic bacteria producing exopolymers with emulsifuing and antioxidant activities
Author: Boujida, Nadia
Palau, Montserrat
Charfi, Saoulajan
El Moussaoui, Naima
Manresa Presas, Ma. Ángeles (María Ángeles)
Miñana i Galbis, David
Skali Senhaji, Nadia
Abrini, Jamal
Keywords: Bacteris
Genètica bacteriana
Bacterial genetics
Issue Date: 2018
Publisher: Elsevier
Abstract: Halophilic bacteria are considered a great source of new strains producing novel exopolymers with functional properties. In this work we isolated ten halophilic strains producing exopolymers from different hypersaline environments in Morocco. Phenotypic characterization showed that the strains were moderately halophilic, mesophilic and neutrophilic with the ability to produce some hydrolytic enzymes. Strains identification based on 16S rRNA gene sequences comparison showed that nine strains, designed as N1, N2, N5, N7, N8, N9, N10, N11 and N12 belong to <i>Halomonas</i> genus and one strain, designed as N4, to <i>Marinobacter</i> genus. The majority of the strains showed high levels of exopolymer production. The study of emulsifying and antioxidant activities revealed that all the polymers have an interesting emulsifying and antioxidant activities with the polymer from <i>Marinobacter</i> sp. N4 forming the highest and most stable emulsions and exhibiting the best antioxidant activity in comparison with other exopolymers produced by <i>Halomonas</i> strains. The obtained results demonstrate the great potential of exopolymers from halophilic bacteria to be applied as emulsifying and antioxidant agents in food, cosmetics and oil industries.
Note: Versió postprint del document publicat a:
It is part of: Biocatalysis and Agricultural Biotechnology, 2018, vol. 16, p. 631-637
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ISSN: 1878-8181
Appears in Collections:Articles publicats en revistes (Biologia, Sanitat i Medi Ambient)

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