Degradation of nitrocellulose film under aerobic conditions by a newly isolated Rhodococcus pyridinivorans strain.

Autor: Huang J; School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Jiangsu, Nanjing 210094, China; Key Laboratory of Special Energy Materials, Ministry of Education, Jiangsu, Nanjing 210094, China., Zhang A; College of Biotechnology and Pharmaceutical Engineering, Nanjing Technology University, Jiangsu, Nanjing 211816, China., Yang Q; Luzhou North Chemical Industry Co. Ltd, Sichuan, Luzhou 646605, China., Ding Y; School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Jiangsu, Nanjing 210094, China; Key Laboratory of Special Energy Materials, Ministry of Education, Jiangsu, Nanjing 210094, China. Electronic address: dyj@njust.edu.cn., Xiao Z; School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Jiangsu, Nanjing 210094, China; Key Laboratory of Special Energy Materials, Ministry of Education, Jiangsu, Nanjing 210094, China.
Jazyk: angličtina
Zdroj: Bioresource technology [Bioresour Technol] 2024 Dec; Vol. 413, pp. 131464. Date of Electronic Publication: 2024 Sep 13.
DOI: 10.1016/j.biortech.2024.131464
Abstrakt: The explosive and biorefractory nature of nitrocellulose (NC) poses major risks to both humans and the environment. Expanding the range of microorganisms capable of degrading NC is essential, though the most effective known microorganisms, Desulfovibrio genera and Fusarium solani, achieve degradation rates of 5%-25%. Here, a novel strain, Rhodococcus pyridinivorans LZ1 was isolated, demonstrating the ability to degrade NC, with its growth potentially enhanced by the presence of NC. The degradation process was monitored by assessing changes in nitrate, nitrite, and ammonium. Notably, the -OH strength of NC increased over time, whereas the energetic functional groups (-NO 2 and O-NO 2 ) diminished. Furthermore, the presence of NC enhanced nitrate esterase activity 1-2-fold, indicating that ammonification was the primary pathway for NC biodegradation. By converting the nitrate ester of NC into hydroxyl, R. pyridinivorans LZ1 mitigates the harmful effects of NC, offering a promising approach for the treatment of NC waste and wastewater.
Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2024 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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