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首页> 外文期刊>Biotechnology Advances: An International Review Journal >Novel rhamnolipid biosurfactants produced by a polycyclic aromatic hydrocarbon-degrading bacterium Pseudomonas aeruginosa strain NY3
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Novel rhamnolipid biosurfactants produced by a polycyclic aromatic hydrocarbon-degrading bacterium Pseudomonas aeruginosa strain NY3

机译：多环芳烃降解细菌铜绿假单胞菌菌株NY3生产的新型鼠李糖脂表面活性剂

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摘要

A novel rhamnolipid biosurfactant-producing and Polycyclic Aromatic Hydrocarbon (PAH)-degrading bacterium Pseudomonas aeruginosa strain NY3 was isolated from petroleum-contaminated soil samples. Strain NY3 was characterized by its extraordinary capacity to produce structurally diverse rhamnolipids. A total of 25 rhamnolipid components and 37 different parent molecular ions, representing various metal ion adducts (Nd+, 2Na(+) and K+), were detected by matrix-assisted laser desorption ionization time-of-flight mass spectrometry. Among these compounds are ten new rhamnolipids. In addition to its biosurfactant production, strain NY3 was shown to be capable of efficient degradation of PAHs as well as synergistic improvement in the degradation of high molecular weight PAHs by its biosurfactant. These findings have added novel members to the rhamnolipid group and expanded current knowledge regarding the diversity and productive capability of rhamnolipid biosurfactants from a single specific strain with variation of only one carbon source. Additionally, this paper lays the foundation for improvement in the yield of NY3BS and study of the degradation pathway(s) of PAHs in P. aeruginosa strain NY3
机译：从石油污染的土壤样品中分离出一种新型鼠李糖脂类生物表面活性剂生产和降解多环芳烃铜绿假单胞菌菌株NY3。 NY3菌株的特点是其生产结构多样化鼠李糖脂的非凡能力。通过基质辅助激光解吸电离飞行时间质谱法检测到总共25种鼠李糖脂成分和37种不同的母体分子离子，分别代表各种金属离子加合物（Nd +，2Na（+）和K +）。这些化合物中有十种新的鼠李糖脂。除其生物表面活性剂的生产外，菌株NY3还被证明能够有效降解PAHs，并能通过其生物表面活性剂协同改善高分子量PAHs的降解。这些发现为鼠李糖脂组增加了新成员，并扩展了有关鼠李糖脂生物表面活性剂的多样性和生产能力的现有知识，该鼠李糖脂生物表面活性剂来自单一特定菌株，仅具有一个碳源的变化。此外，本文为提高NY3BS产量和研究铜绿假单胞菌NY3菌株中PAHs的降解途径奠定了基础。

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