Identification of cultivable bacterial strains producing biosurfactants/bioemulsifiers isolated from an Algerian oil refinery

Guergouri, Ibtissem; Guergouri, Mounia; Khouni, Sabra; Benhizia, Yacine

doi:10.1007/s00203-022-03265-2

Cited by 5 publications

(1 citation statement)

References 80 publications

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“…Numerous microbes have been reported to produce BS/BE. The microbial genera extensively studied for BS/BE production are Bacillus , Pseudomonas , Halomonas , Acinetobacter, Serratia, Candida, Penicillium, Yarrowia, Torulopsis, Aspergillus, Pseudozyma, Saccharomyces, Trichosporon , and Rhodotorula ( Bodour and Maier, 2003 ; Bonilla et al, 2005 ; Fontes et al, 2010 ; Satpute et al, 2010 ; Bhairav et al, 2013 ; Bakhshi et al, 2018 ; Płaza and Achal, 2020 ; Baskaran et al, 2021 ; Guergouri et al, 2022 ). The SACs produced by only a few of these mentioned microbial genera are comprehensively studied, well-characterized, and commercialized in the market ( Franzetti et al, 2010 ).…”

Section: Introductionmentioning

confidence: 99%

Production and characterization of bioemulsifier by Parapedobacter indicus

Devale

Sawant²,

Pardesi³

et al. 2023

Front. Microbiol.

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The current study evaluated Parapedobacter indicus MCC 2546 for its potential to produce a bioemulsifier (BE). Screening methods performed for BE production by P. indicus MCC 2546 showed good lipase activity, positive drop collapse test, and oil-spreading activity. Furthermore, it showed maximum emulsification activity (225 EU/ml) and emulsification index (E24 50%) at 37°C in Luria Bertani broth at 72 h with olive oil as a substrate. The optimal pH and NaCl concentration for maximum emulsification activity were 7 and 1%, respectively. P. indicus MCC 2546 lowered the surface tension of the culture medium from 59.65 to 50.42 ± 0.78 mN/m. BE produced was composed of 70% protein and 30% carbohydrate, which showed the protein–polysaccharide nature of the BE. Furthermore, Fourier transform infrared spectroscopy analysis confirmed the same. P. indicus MCC 2546 showed a catecholate type of siderophore production. This is the first report on BE and siderophore production by the genus Parapedobacter.

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