scholarly journals Effect of nutritional factors and growth conditions on biosurfactant production by Pseudomonas mendocina andPseudomonas oleovorans isolated from oil contaminated soil in Jeddah city

2021 ◽  
Vol 7 (6) ◽  
Keyword(s):  
Contaminated Soil ◽  
Growth Conditions ◽  
Biosurfactant Production ◽  
Pseudomonas Mendocina ◽  
Nutritional Factors ◽  
Jeddah City

Optimization of a biosurfactant production from bacteria isolated from soil and characterization of the surfactant / Topraktan izole edilen bakterilerden biyosurfaktan üretiminin optimizasyonu ve surfaktanın karakterizasyonu

2016 ◽  
Vol 41 (5) ◽  
Author(s):  
Yağmur Toptaş ◽  
Meltem Çelikdemir ◽  
Cansel Tuncer ◽  
Yeliz Buruk Şahin ◽  
Pınar Aytar Çelik ◽  
...  
Keyword(s):  
Antibacterial Activity ◽  
Contaminated Soil ◽  
Biosurfactant Production ◽  
Production Medium ◽  
Accession Number ◽  
Surface Active ◽  
Statistical Screening ◽  
Active Substances ◽  
Significant Factors

AbstractObjective: Biosurfactants are surface-active substances produced by microorganisms. The growth of microorganism supports biosurfactant production on hydrocarbon polluted environments. In this study, the capacity of biosurfactant production of Georgenia daeguensis (accession number, KP798810) isolated from hydrocarbon- contaminated soil was studied.Methods: The components of biosurfactant production medium were investigated through Plackett-Burman methodology. By using Placket-Burman based on statistical screening, six of the eleven factors of production medium were found to be critically effective on the biosurfactant production.Results: The significant factors were KCl, ZnSOConclusion: This study reported that Georgenia daeguensis is able to produce effective biosurfactant exhibiting antibacterial activity against K. pneumoniae.

Potential of Brevibacillus sp. AVN 13 isolated from crude oil contaminated soil for biosurfactant production and its optimization studies

2018 ◽  
Vol 6 (4) ◽  
pp. 4347-4356 ◽  
Author(s):  
C. Vigneshwaran ◽  
V. Sivasubramanian ◽  
K. Vasantharaj ◽  
N. Krishnanand ◽  
M. Jerold
Keyword(s):  
Crude Oil ◽  
Contaminated Soil ◽  
Biosurfactant Production

scholarly journals Biodegradation of Total Petroleum Hydrocarbons in Soil: Isolation and Characterization of Bacterial Strains from Oil Contaminated Soil

2020 ◽  
Vol 10 (12) ◽  
pp. 4173 ◽  
Author(s):  
Runkai Wang ◽  
Baichun Wu ◽  
Jin Zheng ◽  
Hongkun Chen ◽  
Pinhua Rao ◽  
...  
Keyword(s):  
Contaminated Soil ◽  
Petroleum Hydrocarbons ◽  
Ph Value ◽  
Optimal Growth ◽  
Growth Conditions ◽  
Total Petroleum Hydrocarbons ◽  
Impact Factors ◽  
Growth Media ◽  
Bacterial Strains ◽  
Isolation And Characterization

In this study, we isolated seven strains (termed BY1–7) from polluted soil at an oil station and evaluated their abilities to degrade total petroleum hydrocarbons (TPHs). Following 16 rRNA sequence analysis, the strains were identified as belonging to the genera Bacillus, Acinetobacter, Sphingobium, Rhodococcus, and Pseudomonas, respectively. Growth characterization studies indicated that the optimal growth conditions for the majority of the strains was at 30 °C, with a pH value of approximately 7. Under these conditions, the strains showed a high TPH removal efficiency (50%) after incubation in beef extract peptone medium for seven days. Additionally, we investigated the effect of different growth media on growth impact factors that could potentially affect the strains’ biodegradation rates. Our results suggest a potential application for these strains to facilitate the biodegradation of TPH-contaminated soil.

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