Role of plasmid in diesel oil degradation by yeast species isolated from petroleum hydrocarbon-contaminated soil

2011 ◽  
Vol 33 (6) ◽  
pp. 645-652 ◽  
Author(s):  
Preethy Chandran ◽  
Nilanjana Das
2015 ◽  
Vol 1092-1093 ◽  
pp. 878-881
Author(s):  
Ping Guo ◽  
Jian Guo Lin ◽  
Bin Xia Cao ◽  
Na Ta

Two cold-tolerant petroleum hydrocarbon degrading bacteria strain named CHD1 and CHD2 were isolated from oil-contaminated soil at cold climate. The isolated strains were able use diesel oil as sole carbon. The petroleum hydrocarbon degradation rate was analyzed using UV-spectrometry-based methods. The results showed that the diesel oil degradation rate of CHD1 and CHD2 were 22% and 25%, respectively.


2014 ◽  
Vol 955-959 ◽  
pp. 728-731
Author(s):  
Ping Guo ◽  
Jian Guo Lin ◽  
Bin Xia Cao ◽  
Na Ta

Fourteen petroleum hydrocarbon degrading bacteria strains were isolated from oil-contaminated site. Isolated strains were able use diesel oil as sole carbon and energy source. Bacterial strain HD1 was selected due to the luxuriant growth on oil agar. The oil degradation rate of strain HD1 was analyzed using UV-spectrometry-based methods. The result showed that the rate of diesel oil degradation of 75% was observed after 14days of cultivation.


2011 ◽  
Vol 356-360 ◽  
pp. 1145-1151
Author(s):  
Zhe Zhang ◽  
Shi Qiang Ding ◽  
Yu Suo Yang ◽  
Xiu Jin Zuo ◽  
Yin Xu

In this study, the feasible condition for diesel oil degradation of EM was investigated in artificial seawater medium. Under the optimal growth and degradation condition of pH 8.0, 30°C, inoculation amount of 3%, substrate concentration of 0.5%, and NaCl concentration of 20 g/L, the n-alkanes of diesel oil was degraded in high efficiency with total degrading rate of 72.3%, and the average n-alkanes (C10- C21) removal could reach 74.8% within 15 days. The results indicated that EM could be used in the bioremediation of marine oil pollution.


PLoS ONE ◽  
2015 ◽  
Vol 10 (7) ◽  
pp. e0133723 ◽  
Author(s):  
Mariana Rangel Pereira ◽  
Gustavo Fernando Mercaldi ◽  
Thaís Carvalho Maester ◽  
Andrea Balan ◽  
Eliana Gertrudes de Macedo Lemos

2018 ◽  
Vol 9 (1) ◽  
pp. 26-31
Author(s):  
Thi Nhi Cong Le ◽  
Thi Ngoc Mai Cung ◽  
Ngoc Huy Vu ◽  
Thi Lien Do ◽  
Thi To Uyen Do ◽  
...  

Biochar is defined as a carbon-rich, fine-grained, porous substance, which is produced by pyrolysis biomass with little or no oxygen. Biochar is usually produced from crop residues, wood biomass, animal litters, and solid wastes. Recently, biochar is increasingly receiving attention as an environmental-friendly approach, especially as a climate change mitigation strategy. Biochar is especilly demonstrated to remove diesel oil (DO) from soil and water. In this report, 4 biofilm forming bacteria including Klepsiellasp. VTD8, Pseudomonas sp. BQN21, Rhodococcussp. BN5 and Stenotropomonassp. QND8 were used to attach to biochar produced from husk to estimate the capacity of their DO removal. As the results, removal efficiency of biofilm formed by each strain VTD8, BQN21, BN5 and QND8 were 67, 73, 75 and 68 % with initial concentration of 39 g/l, respectively. On the other hand, mix species biofilm attached to husk carrier and without carrier degraded 98 and 78 %. Using husk without bacteria as absortion control, the amount of DO removal was 23 %. These results gave hint that using biochar produced from husk as carrier for biofilm forming bacteria to attach may increase efficiency of DO pollution treatment. Than sinh học (biochar) là một chất xốp có các gốc carbon và có nguồn gốc từ quá trình nhiệt phân sinh khối các loại chất thải, động, thực vật,… dưới điều kiện hạn chế oxy hoặc không có oxy.Hiện nay biochar đã được ứng dụng rộng rãi trong xử lý môi trường. Đặc biệt các biochar còn được chứng minh là có thể xử lý dầu diesel (diesel oil - DO) có trong đất và nước. Trong nghiên cứu này, chúng tôi sử dụng 4 chủng vi khuẩn tạo màng sinh học tốt là Klepsiella sp. VTD8, Pseudomonas sp. BQN21, Rhodococcus sp. BN5 và Stenotropomonas sp. QND8 để gắn lên chất mang là biochar làm từ trấu nhằm đánh giá hiệu quả xử lý DO của chúng. Kết quả cho thấy, sau 7 ngày, các chủng VTD8, BQN21, BN5 và QND8 có khả năng phân hủy 67, 73, 75 và 68 % DO với hàm lượng ban đầu là 39 g/l. Trong khi đó, hiệu suất của màng sinh học tạo thành bởi hỗn hợp các chủng này khi không có chất mang biochar trấu và khi có chất mang biochar trấu lần lượt là 78 và 98 %. Còn sử dụng chất mang biochar trấu không có vi sinh vật làm đối chứng thì thu được hiệu suất hấp phụ DO là 23 %. Như vậy, kết quả này mở ra tiềm năng ứng dụng biochar trấu làm chất mang cho các chủng vi khuẩn tạo màng sinh học để nâng cao hiệu quả xử lý ô nhiễm dầu.


2014 ◽  
Vol 1010-1012 ◽  
pp. 737-741
Author(s):  
Zeng Jian Su ◽  
Min Li ◽  
Yu Xiu Zhang

Six oil degradation strains were obtained from the tropic ocean of Hainan province using diesel oil as the sole carbon source in the research, which aim is to prevent and restore the ocean oil pollution at present and in future. The degradation rate of diesel oil by these strains was tested and three stains were filtrated as the dominant bacteria from Soh7, Soh11, Soh23, Soh26, Soh38 and Soh53 which were Soh7, Soh11 and Soh53. The 15d DR were 40.6%,31.3%,37.1% and 25d DR were 51.2%, 40.3%, 47.8% (TDR were 63.1%, 54.9%, 60.6%) separately under 24°C. Based on the morphological, physiological and biochemical test results, the Soh7 was identified asSporolactobacillus sp.and Soh11 and Soh53 wereAcidothermus sp..


2020 ◽  
Author(s):  
Vivyan Pinheiro Simão Ribeiro ◽  
Glória Andreia Ferreira Hernández ◽  
Luana Pinto de Souza Tavares ◽  
Vicente Mussi-Dias ◽  
Maria das Graças Machado Freire

2021 ◽  
Vol 6 (13) ◽  
pp. 3117-3125
Author(s):  
Er‐Peng Bao ◽  
Songtao Long ◽  
Shuoqing Zhang ◽  
Huan Li ◽  
Weiguo Zhang ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document