Fisheries College, Ocean University of China, Qingdao 266003, China.
Frontiers Science Center for Deep Ocean Multispheres and Earth System, Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao 266100, China.
Molecules. 2022 Jan 21;27(3):687. doi: 10.3390/molecules27030687.
Microbial degradation is a useful tool for inhibiting or preventing polycyclic aromatic hydrocarbons (PAHs) widely distributed in marine environment after oil spill accidents. This study aimed to evaluate the potential and diversity of bacteria Bacillus sp. PAH-2 on Benzo (a) anthracene (BaA), Pyrene (Pyr), and Benzo (a) pyrene (BaP), their composite system, aromatic components system, and crude oil. The seven-day degradation rates against BaA, Pyr, and BaP were 20.6%, 12.83%, and 17.49%, respectively. Further degradation study of aromatic components demonstrated PAH-2 had a high degradation rate of substances with poor stability of molecular structure. In addition, the degradation of PAHs in crude oil suggested PAH-2 not only made good use of PAHs in such a more complex structure of pollutants but the saturated hydrocarbons in the crude oil also showed a good application potential.
微生物降解是一种有用的工具，可以抑制或防止溢油事故后广泛分布在海洋环境中的多环芳烃（PAHs）。本研究旨在评估细菌 Bacillus sp. PAH-2 对苯并（a）蒽（BaA）、芘（Pyr）和苯并（a）芘（BaP）、它们的复合体系、芳香族成分体系和原油的潜在性和多样性。对 BaA、Pyr 和 BaP 的 7 天降解率分别为 20.6%、12.83%和 17.49%。对芳香族成分的进一步降解研究表明，PAH-2 对分子结构稳定性差的物质具有较高的降解率。此外，原油中 PAHs 的降解表明，PAH-2 不仅很好地利用了此类结构更复杂的污染物中的 PAHs，而且原油中的饱和烃也表现出了很好的应用潜力。
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