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Biodegradation of n-hexadecane by bacterial strains B1 and B2 isolated from petroleum-contaminated soil 总被引:1,自引:0,他引:1
Liu Tao Wang FengHua Guo LanPing Li XiaoLiang Yang XiaoJin Lin Ai Jun 《中国科学:化学(英文版)》2012,55(9):1968-1975
Two hydrocarbon-biodegrading bacterial strains,B1 and B2,were isolated from petroleum-contaminated soil collected from Tianjin,China.The strains were identified as Pseudomonas aeruginosa(B1) and Acinetobacter junii(B2).The degradation rate of n-hexadecane by B1 and B2 reached 96% and 78% respectively after 7 days,though the strains employed different mechanisms of degradation.The results showed that B2 was not able to use glucose as carbon source.B1 could produce glycolipid surfactants using glucose as the carbon source,according to the results of blue agar plate analysis and thin layer chromatography(TLC),and the bacterial culture of B1 had a high oil discharge and emulsification activity.Both B1 and B2 could produce biosurfactants with hexadecane as the sole carbon source,but their modes of action were different.The carbon source was found to affect the cell surface hydrophobicity.Cell surface hydrophobicity was poor with glucose as the carbon source,but enhanced when hexadecane was used as the carbon source. 相似文献
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Prof. XiaoJin Wang Prof. Huan Pang Dr. Shanshan Zhao Dr. Weifang Shao Dr. Bo Yan Dr. Xinran Li Prof. Sujuan Li Prof. Jing Chen Prof. Weimin Du 《Chemphyschem》2013,14(11):2518-2524
Fe4(OH)3(PO4)3 microcrystals are successfully synthesized by a simple hydrothermal method. Due to a possible self‐etching mechanism, different morphologies of Fe4(OH)3(PO4)3 microcrystals are obtained. Several reactions with different temperatures and times are performed to confirm the supposed self‐etching mechanism. Moreover, as a result of their different micro/nanostructures, these microcrystals present different photocatalytic activities for visible‐light‐driven photodegragadation of methylene blue. 相似文献
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XiaoJin Zhang 《中国科学 数学(英文版)》2012,55(6):1171-1178
We build a connection between iterated tilted algebras with trivial cluster tilting subcategories and tilted algebras of finite type.Moreover,all tilted algebras with cluster tilting subcategories are determined in terms of quivers.As a result,we draw the quivers of Auslander’s 1-Gorenstein algebras with global dimension 2 admitting trivial cluster tilting subcategories,which implies that such algebras are of finite type but not necessarily Nakayama. 相似文献
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