Lipopeptide biosurfactant production bacteria Acinetobacter sp. D3-2 and its biodegradation of crude oil

2014 ◽  
Vol 16 (4) ◽  
pp. 897-903 ◽  
Author(s):  
Mutai Bao ◽  
Yongrui Pi ◽  
Lina Wang ◽  
Peiyan Sun ◽  
Yiming Li ◽  
...  
Keyword(s):  
Crude Oil ◽  
Contaminated Soil ◽  
Potential Effect ◽  
Soil Samples ◽  
Biosurfactant Production ◽  
Degrading Bacterium ◽  
Petroleum Contaminated Soil ◽  
Lipopeptide Biosurfactant ◽  
Acinetobacter Sp

In this work, a hydrocarbon-degrading bacterium D3-2 isolated from petroleum contaminated soil samples was investigated for its potential effect in biodegradation of crude oil. The strain was identified as Acinetobacter sp.

Planococcus lenghuensis sp. nov., an oil-degrading bacterium isolated from petroleum-contaminated soil

2020 ◽  
Vol 113 (6) ◽  
pp. 839-850
Author(s):  
Ruiqi Yang ◽  
Binglin Zhang ◽  
Jincheng Wang ◽  
Xisheng Tai ◽  
Haili Sun ◽  
...  
Keyword(s):  
Contaminated Soil ◽  
Degrading Bacterium ◽  
Petroleum Contaminated Soil

Assessment of bacterial diversity associated with crude oil-contaminated soil samples from Assam

2017 ◽  
Vol 14 (10) ◽  
pp. 2155-2172 ◽  
Author(s):  
R. Baruah ◽  
S. K. Mishra ◽  
D. J. Kalita ◽  
Y. Silla ◽  
P. S. Chauhan ◽  
...  
Keyword(s):  
Crude Oil ◽  
Bacterial Diversity ◽  
Contaminated Soil ◽  
Soil Samples

scholarly journals INDUCED DEGRADATION OF CRUDE OIL POLLUTED SOIL BY MICROBIAL AUGMENTATION

2017 ◽  
Vol 23 (4) ◽  
pp. 37-44
Author(s):  
SYLVESTER UWADIAE ◽  
EMIKE OMOAYENA
Keyword(s):  
Crude Oil ◽  
Soil Sample ◽  
Contaminated Soil ◽  
Polluted Soil ◽  
Soil Samples ◽  
The Other ◽  
Pseudomonas Sp ◽  
Hydrocarbon Content ◽  
Percentage Removal

This study was aimed at assessing the effectiveness of indigenous microbes for remediation of hydrocarbon contaminated soil by first increasing the population of the indigenous microbes via bioaugmentation. Soil samples were treated using a consortium of bacteria: Bacillus substilis and Pseudomonas sp. which were isolated and cultured from the contaminated soil. The non-bacteria injected soil sample had the highest hydrocarbon content (THC) of 271.021 in comparison with the other soil samples. The THC percentage removal of B1 (96.885 %), B2 (97.562 %), B3 (98.835 %), B4 (99.594 %) and B5 (99.540 %) were higher than that of the control; indicating that biodegradation actually took place.

Toxicity Assessment of some Crude Oil Contaminated Soils in the Niger Delta

2009 ◽  
Vol 62-64 ◽  
pp. 451-455 ◽  
Author(s):  
F.A. Aisien ◽  
J.C. Chiadikobi ◽  
E.T. Aisien
Keyword(s):  
Heavy Metals ◽  
Moisture Content ◽  
Crude Oil ◽  
Contaminated Soil ◽  
Contaminated Soils ◽  
Niger Delta ◽  
Extraction Methods ◽  
Toxicity Assessment ◽  
Soil Samples ◽  
Physiochemical Parameters

This paper considered the toxicity assessment of some crude oil contaminated soils in Niger Delta areas. The soil samples were collected from different horizontal distances, vertical depths and contaminated soil of different ages. The heavy metals in the contaminated soils were digested and extracted using di-acid digested and DTPA extraction methods respectively. The physiochemical parameters (moisture content, pH, N, P and heavy metals (Ni, Pb and Cd) were analysed with APHA method. The heavy metals concentration was determined using atomic absorption spectrophotometer (AAS). The results show that the metals concentration decreased with the age of the contaminated soil and with increased vertical depths. However, the metals concentrations were almost constant at different horizontal distances. Similar trend was observed for the moisture content, pH, N, P and K.

scholarly journals Stoichiometric characteristics of microbial biomass in oil-contaminated soil in the loess hilly region

2021 ◽  
Vol 71 (1) ◽  
Author(s):  
Lei Shi ◽  
Zhongzheng Liu
Keyword(s):  
Microbial Biomass ◽  
Organic Carbon ◽  
Contaminated Soil ◽  
Soil Microbial Biomass ◽  
Oil Pollution ◽  
Soil Samples ◽  
Oil Well ◽  
Soil Microbial ◽  
Petroleum Contaminated Soil ◽  
Petroleum Pollutants

Abstract Purpose The present study envisaged the stoichiometry of microbial biomass in petroleum-contaminated soil, in order to study the influence of the petroleum-contaminated soil on the ecosystem stability. Methods A typical oil well area in the Northern Shaanxi was considered the research object and the oil pollution status was assessed by studying the physical, chemical, and microbiological characteristics of the soil in the area. Results From the measurement and analysis of the petroleum pollutants in the soil samples, it was observed that the concentration of the petroleum pollutants around all the oil well areas was higher than the critical value of 500 mg/kg. Furthermore, the C to N ratio of 8 soil samples around the oil wells (0.8:1~13.3:1) was lower than that of the control soil samples in most cases and could not reach the nutrient proportion level required by soil microorganisms. It was observed that the oil organic carbon content at 0~10 m from the wellhead was obviously higher than that in other areas, and decreased with an increase in the distance from the well. Based on the determination of soil organic carbon, total nitrogen, total phosphorus, and the soil microbial biomass carbon (SMBC), soil microbial biomass nitrogen (SMBN), and phosphorus content analysis, it was observed that only the soil organic carbon was significantly positively correlated to the oil pollutants in soil. Conclusions Imbalance in the C to N, SMBC, and SMBN ratio can lead to an acute shortage of the required nutrients than microorganisms, limit the soil microbial reproduction and growth, and thereby slow down the rate of indigenous microbial degradation of petroleum hydrocarbons, so as to reduce the impact of oil pollution on the stability of the entire ecosystem. Therefore, during the remediation of petroleum-contaminated soil in this study area, adequate nutrients need to be reasonably added to the soil.

scholarly journals Stimulation of diesel degradation and biosurfactant production by aminoglycosides in a novel oil-degrading bacterium Pseudomonas luteola PRO23

2016 ◽  
Vol 70 (2) ◽  
pp. 143-150 ◽  
Author(s):  
Iva Atanaskovic ◽  
Jelena Jovicic-Petrovic ◽  
Marjan Biocanin ◽  
Vera Karlicic ◽  
Vera Raicevic ◽  
...  
Keyword(s):  
Crude Oil ◽  
Growth Kinetics ◽  
Microbial Growth ◽  
Biosurfactant Production ◽  
Lag Phase ◽  
Degrading Bacterium ◽  
Light Oil ◽  
Oil Concentration ◽  
Pseudomonas Luteola ◽  
Biodegradation Efficiency

Bioremediation is promising technology for dealing with oil hydrocarbons contamination. In this research growth kinetics and oil biodegradation efficiency of Pseudomonas luteola PRO23, isolated from crude oil-contaminated soil samples, were investigated under different concentrations (5, 10 and 20 g/L) of light and heavy crude oil. More efficient biodegradation and more rapid adaptation and cell growth were obtained in conditions with light oil. The 5 to 10 g/L upgrade of light oil concentration stimulated the microbial growth and the biodegradation efficiency. Further upgrade of light oil concentration and the upgrade of heavy oil concentration both inhibited the microbial growth, as well as biodegradation process. Aminoglycosides stimulated biosurfactant production in P. luteola in the range of sub-inhibitory concentrations (0.3125, 0.625 ?g/mL). Aminoglycosides also induced biofilm formation. The production of biosurfactants was the most intense during lag phase and continues until stationary phase. Aminoglycosides also induced changes in P. luteola growth kinetics. In the presence of aminoglycosides this strain degraded 82% of diesel for 96 h. These results indicated that Pseudomonas luteola PRO23 potentially can be used in bioremediation of crude oil-contaminated environments and that aminoglycosides could stimulate this process.

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

Gravimetric Profile of Hydrocarbon Degrading Bacterial and Fungal Isolates from Contaminated Soil Samples in Ado-Ekiti, Nigeria

2021 ◽  
Vol 1 (1) ◽  
Author(s):  
Olayinka O. Idris ◽  
◽  
Olayinka T. Ogunmefun ◽  
Cinderella N. Tuesimi
Keyword(s):  
Crude Oil ◽  
Contaminated Soil ◽  
Contaminated Soils ◽  
Soil Samples ◽  
Engine Oil ◽  
Water Retention Capacity ◽  
Trichoderma Spp ◽  
Fungal Isolates ◽  
Degrading Bacteria ◽  
Spent Engine Oil

One of the biological compounds limiting soil water retention capacity is oil when present due to its hydro-nature. However, some microorganisms exhibit the capacity to degrade oil as a source of carbon, whereby the soil quality is retained and enhanced. Hence, the gravimetric profile of hydrocarbon degrading bacteria and fungi isolated from oil contaminated soil samples was investigated. Soil samples were collected from surface and 10m depth from six different mechanic workshops and generator sites. The pour plate technique was used to isolate the microorganisms. All pure isolates were sub-cultured using Bushnell Haas agar and the isolated bacteria were identified by their morphological and biochemical characteristics. The soil samples pH range was 4.3 - 6.4. Bacteria isolated included Pseudomonas spp., Staphylococcus spp., Microccocus spp., Acinetobacter spp., and Bacillus spp. The fungi isolated included Aspergillus spp., Rhizopus spp., Candida spp., Trichoderma spp. and Penicillium spp. Degradation of kerosene, diesel, crude oil, engine oil, and spent engine oil was allowed using Acinetobacter baumanni, P. aeruginosa, B. subtilis, and S. aureus. Gravimetric analyses were used to determine the percentage of petroleum hydrocarbon degraded by bacterial isolates. The highest percentage of degradation was between P. aeruginosa and B. subtilis. Pseudomonas aeruginosa degraded 97.4% diesel, 88.2% kerosene, 71.3% crude oil, 80.7% engine oil and 78.2% spent engine oil; while Bacillus subtilis degraded 71% diesel, 97% kerosene, 89.6% crude oil, 87% engine oil and 72.6% spent engine oil. This study revealed that bacterial and fungal isolates from oil contaminated soils exhibited the potentials to degrade oil and bioremediation using these microorganisms was possible.

scholarly journals Draft Genome Sequence of Novosphingobium panipatense Strain P5:ABC, Isolated from Hydrocarbon-Contaminated Soil from Noonmati Refinery, Assam, India

2017 ◽  
Vol 5 (45) ◽  
Author(s):  
Arvind Kumar Singh ◽  
Bobby Chettri ◽  
Arpita Ghosh ◽  
Surendra K. Chikara ◽  
Timir Tripathi
Keyword(s):  
Genome Sequence ◽  
Contaminated Soil ◽  
Draft Genome ◽  
Hydrocarbon Degradation ◽  
Draft Genome Sequence ◽  
Genomic Information ◽  
Content Type ◽  
Degrading Bacterium ◽  
Petroleum Contaminated Soil

ABSTRACT Novosphingobium panipatense P5:ABC is a hydrocarbon-degrading bacterium isolated from petroleum-contaminated soil. Here, we present the 5.74-Mb draft genome sequence with 5,206 genes and an average G+C content of 64.7%. The genomic information will improve our understanding of the diversity of N. panipatense and the mechanisms of microbe-based hydrocarbon degradation.

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