Isolation, Screening and Identification of Biosurfactant-producing Bacteria from Hydrocarbon-polluted and Pristine Soils within Ogoniland, Nigeria

Development and improved selected markers to biosurfactant and bioemulsifier production by Rhizopus strains isolated from Caatinga soil

“…The hemolytic activity demonstrated by the strain was superior to that presented by Aspergillus species MSF1 that caused the appearance of a clear zone with a diameter of 7 mm in blood agar medium as described by Kiran et al (2010). The hemolytic activity was employed by several authors as initial criterion for selection of biosurfactant producers (Batool et al, 2017;Nwaguma et al, 2016). However, Satpute et al (2010), recommend the use of more than one screening method for detection of biosurfactantproducing microorganisms.…”

“…However, the majority of screening studies have been carried out using bacteria (Kebbouche-Gana et al, 2009;Nwaguma et al, 2016;Joy et al, 2017;Batool et al, 2017), and outgrows by far those evaluating the fungi producing potential (Sari et al, 2014;Lodha et al, 2016). Till date however, the need for discovery of biosurfactant producing microorganisms capable of inhabiting environments featured by adverse typical conditions such as extreme salinity, higher temperatures, and scanty humidity is still enormous (Techaoei et al, 2007;Kebbouche-Gana et al, 2009;Kiran et al, 2010).…”

Isolation and identification of the same type LMG1242 of biosurfactant-producing strain of Pseudomonas aeruginosa from different oil contaminated soils

“…Much research is conducted to identify biosurfactant-producing bacteria from different environments in contact with different hydrocarbon oils mainly for the purpose of bioremediation and biodegradation as well as enhanced oil recovery (Christova et al, 2019;Cai et al, 2017;Nwagumal et al, 2016;Souza et al, 2014;Bach & Gutnick, 2004). However, fewer reports are available on identification of biosurfactant-producing bacteria and their role in hydrocarbon bioprocessing applications such as viscosity reduction and heavy oil upgrading (Gudiña & Teixeira, 2017;Cerón-Camacho et al, 2013;Perfumo et al, 2010).…”