Marinobacter sp. from marine sediments produce highly stable surface-active agents for combatting marine oil spills

Microbial Cell Factories
Noura RaddadiFabio Fava

Abstract

The application of chemical dispersants as a response to marine oil spills is raising concerns related to their potential toxicity also towards microbes involved in oil biodegradation. Hence, oil spills occurring under marine environments necessitate the application of biodispersants that are highly active, stable and effective under marine environment context. Biosurfactants from marine bacteria could be good candidates for the development of biodispersant formulations effective in marine environment. This study aimed at establishing a collection of marine bacteria able to produce surface-active compounds and evaluating the activity and stability of the produced compounds under conditions mimicking those found under marine environment context. A total of 43 different isolates were obtained from harbor sediments. Twenty-six of them produced mainly bioemulsifiers when glucose was used as carbon source and 16 were biosurfactant/bioemulsifiers producers after growth in the presence of soybean oil. Sequencing of 16S rRNA gene classified most isolates into the genus Marinobacter. The produced emulsions were shown to be stable up to 30 months monitoring period, in the presence of 300 g/l NaCl, at 4 °C and after high temperature treat...Continue Reading

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Citations

Sep 16, 2018·Current Microbiology·Min ZhuHongbing Shao
Aug 9, 2020·FEMS Microbiology Letters·Roberta RomanoFabio Fava
Aug 27, 2018·Biotechnology Letters·Lakshmi TripathiIbrahim M Banat
Mar 5, 2021·Frontiers in Bioengineering and Biotechnology·Christina Nikolova, Tony Gutierrez

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Datasets Mentioned

BETA
MF382054
MF382079

Methods Mentioned

BETA
thermal treatment

Software Mentioned

BLASTn
MEGA6
DECIPHER

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