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JSIR Vol.68(10) [October 2009] >


Title: Biodegradation kinetics of benzoic and anthranilic acids by Micrococcus sp.
Authors: Muthukumar, Karuppan
Bharath, Chakravarthy
Pugalenthi, Velan
Velan, Manickam
Keywords: Andrews model
Anthranilic acid
Benzoic acid
Biodegradation
Micrococcus sp.
Issue Date: Oct-2009
Publisher: CSIR
Abstract: This study presents biodegradation of benzoic acid (BA) and anthranilic acid (AA) by Micrococcus sp. under aerobic conditions. Initial concentrations of BA and AA were varied (500-2500 mg/l) and almost complete biodegradation of BA and AA was observed within 30 h. Andrews kinetic model for single substrate was fitted to obtain maximum specific growth rates, half saturation and substrate inhibition constants. Cell growth with degrading BA ( m,BA = 0.645 h-1) was faster than with degrading AA ( m,AA = 0.63 h-1). Under biodegradation of BA and AA, first order rate constant values decreased with increase in initial concentration.
Page(s): 900-903
ISSN: 0975-1084 (Online); 0022-4456 (Print)
Source:JSIR Vol.68(10) [October 2009]

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