caa a22 4500 605500169 CHVBK 20210128100554.0 cr unu---uuuuu 210128e20150401xx s 000 0 eng 10.1007/s00253-014-6208-3 doi (NATIONALLICENCE)springer-10.1007/s00253-014-6208-3 Degradation of ethyl mercaptan and its major intermediate diethyl disulfide by Pseudomonas sp. strain WL2 [Elektronische Daten] [Xiangqian Wang, Chao Wu, Nan Liu, Sujing Li, Wei Li, Jianmeng Chen, Dongzhi Chen] A Pseudomonas sp. strain WL2 that is able to efficiently metabolize ethyl mercaptan (EM) into diethyl disulfide (DEDS) through enzymatic oxidation was isolated from the activated sludge of a pharmaceutical wastewater plant. One hundred percent removal of 113.5mgL−1 EM and 110.3mgL−1 DEDS were obtained within 14 and 32h, respectively. A putative EM degradation pathway that involved the catabolism via DEDS was proposed, which indicated DEDS were further mineralized into carbon dioxide (CO2), bacterial cells, and sulfate (SO4 2−) through the transformation of element sulfur and ethyl aldehyde. Degradation kinetics for EM and DEDS with different initial concentrations by strain WL2 were evaluated using Haldane-Andrews model with maximum specific degradation rates of 3.13 and 1.33gg−1h−1, respectively, and maximum degradation rate constants of 0.522 and 0.175h−1 using pseudo-first-order kinetic model were obtained. Results obtained that aerobic degradation of EM by strain WL2 was more efficient than those from previous studies. Substrate range studies of strain WL2 demonstrated its ability to degrade several mercaptans, disulfides, aldehydes, and methanol. All the results obtained highlight the potential of strain WL2 for the use in the biodegradation of volatile organic sulfur compounds (VOSCs). Springer-Verlag Berlin Heidelberg, 2014 Pseudomonas sp. WL2 nationallicence Ethyl mercaptan nationallicence Diethyl disulfide nationallicence Degradation pathway nationallicence Kinetic analysis nationallicence Wang Xiangqian Key Laboratory of Biomass Chemical Engineering of Ministry of Education, Institute of Industrial Ecology and Environment, College of Chemical and Biological Engineering, Zhejiang University (Yuquan Campus), 310027, Hangzhou, China aut Wu Chao Key Laboratory of Biomass Chemical Engineering of Ministry of Education, Institute of Industrial Ecology and Environment, College of Chemical and Biological Engineering, Zhejiang University (Yuquan Campus), 310027, Hangzhou, China aut Liu Nan Key Laboratory of Biomass Chemical Engineering of Ministry of Education, Institute of Industrial Ecology and Environment, College of Chemical and Biological Engineering, Zhejiang University (Yuquan Campus), 310027, Hangzhou, China aut Li Sujing Key Laboratory of Biomass Chemical Engineering of Ministry of Education, Institute of Industrial Ecology and Environment, College of Chemical and Biological Engineering, Zhejiang University (Yuquan Campus), 310027, Hangzhou, China aut Li Wei Key Laboratory of Biomass Chemical Engineering of Ministry of Education, Institute of Industrial Ecology and Environment, College of Chemical and Biological Engineering, Zhejiang University (Yuquan Campus), 310027, Hangzhou, China aut Chen Jianmeng College of Biological and Environmental Engineering, Zhejiang University of Technology, 310032, Hangzhou, China aut Chen Dongzhi College of Biological and Environmental Engineering, Zhejiang University of Technology, 310032, Hangzhou, China aut Applied Microbiology and Biotechnology Springer Berlin Heidelberg 99/7(2015-04-01), 3211-3220 0175-7598 99:7<3211 2015 99 253 https://doi.org/10.1007/s00253-014-6208-3 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s00253-014-6208-3 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Wang Xiangqian Key Laboratory of Biomass Chemical Engineering of Ministry of Education, Institute of Industrial Ecology and Environment, College of Chemical and Biological Engineering, Zhejiang University (Yuquan Campus), 310027, Hangzhou, China aut NATIONALLICENCE 700 1- Wu Chao Key Laboratory of Biomass Chemical Engineering of Ministry of Education, Institute of Industrial Ecology and Environment, College of Chemical and Biological Engineering, Zhejiang University (Yuquan Campus), 310027, Hangzhou, China aut NATIONALLICENCE 700 1- Liu Nan Key Laboratory of Biomass Chemical Engineering of Ministry of Education, Institute of Industrial Ecology and Environment, College of Chemical and Biological Engineering, Zhejiang University (Yuquan Campus), 310027, Hangzhou, China aut NATIONALLICENCE 700 1- Li Sujing Key Laboratory of Biomass Chemical Engineering of Ministry of Education, Institute of Industrial Ecology and Environment, College of Chemical and Biological Engineering, Zhejiang University (Yuquan Campus), 310027, Hangzhou, China aut NATIONALLICENCE 700 1- Li Wei Key Laboratory of Biomass Chemical Engineering of Ministry of Education, Institute of Industrial Ecology and Environment, College of Chemical and Biological Engineering, Zhejiang University (Yuquan Campus), 310027, Hangzhou, China aut NATIONALLICENCE 700 1- Chen Jianmeng College of Biological and Environmental Engineering, Zhejiang University of Technology, 310032, Hangzhou, China aut NATIONALLICENCE 700 1- Chen Dongzhi College of Biological and Environmental Engineering, Zhejiang University of Technology, 310032, Hangzhou, China aut NATIONALLICENCE 773 0- Applied Microbiology and Biotechnology Springer Berlin Heidelberg 99/7(2015-04-01), 3211-3220 0175-7598 99:7<3211 2015 99 253