Please use this identifier to cite or link to this item: https://doi.org/10.1016/S0043-1354(01)00387-6
Title: Inhibition of p-cresol on aerobic biodegradation of carbazole, and sodium salicylate by Pseudomonas putida
Authors: Yu, Y.-G. 
Loh, K.-C. 
Keywords: Carbazole
Cell growth
Growth rate
Inhibition
p-cresol
Sodium salicylate
Issue Date: 2002
Citation: Yu, Y.-G., Loh, K.-C. (2002). Inhibition of p-cresol on aerobic biodegradation of carbazole, and sodium salicylate by Pseudomonas putida. Water Research 36 (7) : 1794-1802. ScholarBank@NUS Repository. https://doi.org/10.1016/S0043-1354(01)00387-6
Abstract: A PAH- and phenol-degrading microorganism, Pseudomonas putida (ATCC 17484), was used to study the substrate interactions during cell growth on carbazole-containing mixtures with p-cresol and sodium salicylate. Both p-cresol and sodium salicylate could be utilised by the bacteria as the sole carbon and energy sources. When cells grew on the mixture of carbazole, p-cresol and sodium salicylate, strong substrate interactions were observed. Carbazole degradation started only after p-cresol was significantly or completely removed, and the removal of carbazole was incomplete when the initial p-cresol concentration was higher than 20mg/l. No carbazole was removed at all when the initial p-cresol concentration in the system was higher than 120mg/l. When cells grew on the ternary substrates, the specific growth rate was found to increase with p-cresol concentration up to 50mg/l (from 0.33 to 0.45h-1) but decreased monotonically with higher concentrations. At 120mg/l p-cresol, specific growth rate fell to 0.33h-1. The inhibitory effect of p-cresol was demonstrated where carbazole degradation was immediately halted when 50mg/l p-cresol was spiked to a system containing carbazole and sodium salicylate. Besides, the addition of p-cresol was also found to inhibit the degradation of sodium salicylate. With p-cresol, an increase in lag time was observed and the utilisation of sodium salicylate as carbon source was severely retarded. Copyright © 2002 Elsevier Science Ltd.
Source Title: Water Research
URI: http://scholarbank.nus.edu.sg/handle/10635/92054
ISSN: 00431354
DOI: 10.1016/S0043-1354(01)00387-6
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.

SCOPUSTM   
Citations

16
checked on Aug 22, 2018

WEB OF SCIENCETM
Citations

15
checked on Aug 6, 2018

Page view(s)

29
checked on Jul 27, 2018

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.