NDLI: Influence of Cosubstrates on Iopromide Degradation by Pseudomonas sp. I-24

Content Provider	Springer Nature Link
Author	Xu, Bingjie Gao, Pin Liu, Zhenhong Xue, Gang Liu, Yanan Wu, Fan
Copyright Year	2014
Abstract	Iopromide has been frequently detected in different environmental compartments. However, the biodegradation of iopromide was limited, and significantly different removal efficiencies by various methods were reported. In this study, a Pseudomonas sp. I-24 isolated from activated sludge in a sewage treatment plant was used to degrade iopromide. Four different cosubstrates were selected as the cometabolic carbon and energy sources. The results showed that cosubstrate starch was able to increase catabolic enzymatic activity and enhance iopromide degradation. The degradation efficiency of iopromide was as high as 88.24 %, which was much higher as compared with other cosubstrates (38.58–51.44 %) and blank sample (2.81 %). Additionally, the highest enzymatic activity of 0.182 mU for iopromide degradation was also obtained when adding starch as a cosubstrate, somehow supporting that higher enzymatic activity resulted in higher degradation efficiency for iopromide. Although little was illuminated about the molecular mechanism during the degradation process of iopromide with starch addition, the two-dimensional gel electrophoresis results indicated that the iopromide-degrading cells growing with cosubstrate starch underwent significant physiological changes.
Starting Page	1
Ending Page	8
Page Count	8
File Format	PDF
ISSN	00496979
Journal	Water, Air, and Soil Pollution
Volume Number	225
Issue Number	2
e-ISSN	15732932
Language	English
Publisher	Springer International Publishing
Publisher Date	2014-01-09
Publisher Place	Cham
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Degradation Iopromide Cosubstrate Enzymatic activity Two-dimensional gel electrophoresis Environment Water Quality/Water Pollution Atmospheric Protection/Air Quality Control/Air Pollution Soil Science & Conservation Hydrogeology Climate Change/Climate Change Impacts
Content Type	Text
Resource Type	Article
Subject	Ecological Modeling Environmental Chemistry Pollution Environmental Engineering Water Science and Technology

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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