Substrate Inhibition Kinetics of Phenol Degradation by Pseudomonas aeruginosa and Pseudomonas fluorescence

2004 ◽  
Vol 4 (1) ◽  
pp. 56-61 ◽  
Author(s):  
B.O. Oboirien . ◽  
B. Amigun . ◽  
T.V. Ojumu . ◽  
O.A. Ogunkunle . ◽  
O.A. Adetunji . ◽  
...  
2000 ◽  
Vol 72 (1) ◽  
pp. 50-55 ◽  
Author(s):  
Chetan T. Goudar ◽  
Shobha H. Ganji ◽  
Basayya G. Pujar ◽  
Keith A. Strevett

2016 ◽  
Vol 8 (11) ◽  
pp. 1126-1132 ◽  
Author(s):  
Soumen Bera ◽  
Sanjay Lamba ◽  
Mubasher Rashid ◽  
Anuj K. Sharma ◽  
Alexander B. Medvinsky ◽  
...  

α-Ketoglutarate substrate inhibition kinetics of hepatic glutamate dehydrogenase amination activity confers robust control over the ratio between glutamate and ammonium.


Chlorophenols are listed as priority pollutants both by European community and US EPA. Biodegradation of pchlorophenol (4-CP) was investigated in batch shake flasks by Arthrobacter chlorophenolicus A6 at initial 4-CP concentrations between 25 to 350 mgl-1. The rate of 4-CP removal decreased with increasing initial 4-CP concentrations due to toxic effects on the microorganisms. The growth and biodegradation kinetic of the culture was evaluated. The batch growth profile of the A chlorophenolicus A6 followed substrate inhibition kinetics with the estimated biokinetic parameters of Ksi = 272 mgl-1, Ks = 65 mgl-1 for 4-CP respectively. High inhibition constant (KSI = 272 mg -l) with a KSI/KS ratio of 4.18 indicates superior 4-CP biodegradation potential of the A chlorophenolicus A6. The maximum rate of 4-CP degradation has been achieved at an optimum substrate concentration of Smax = (KSKSI)1/2 = (65×272)1/2 = 133 mgl−1.


2019 ◽  
Vol 152 ◽  
pp. 214-220
Author(s):  
Abubakar Aisami ◽  
Nur Adeela Yasid ◽  
Wan Lutfi Wan Johari ◽  
Siti Aqlima Ahmad ◽  
Mohd Yunus Shukor

2021 ◽  
Vol 54 (3) ◽  
pp. 318-323
Author(s):  
Thomas Emil Ryde ◽  
Morten Ryberg Wahlgreen ◽  
Marcus Krogh Nielsen ◽  
Steen Hørsholt ◽  
Sten Bay Jørgensen ◽  
...  

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