2010
DOI: 10.1007/s10532-010-9392-6
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Enhanced degradation of phenol by Pseudomonas sp. CP4 entrapped in agar and calcium alginate beads in batch and continuous processes

Abstract: Phenol is one of the major toxic pollutants in the wastes generated by a number of industries and needs to be eliminated before their discharge. Although microbial degradation is a preferred method of waste treatment for phenol removal, the general inability of the degrading strains to tolerate higher substrate concentrations has been a bottleneck. Immobilization of the microorganism in suitable matrices has been shown to circumvent this problem to some extent. In this study, cells of Pseudomonas sp. CP4, a la… Show more

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Cited by 44 publications
(15 citation statements)
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“…Cells immobilized on alginate beads have been used in the degradation and biotransformation of pollutants [ 75 ], the preservation of cell viability [ 76 ], and the production of enzymes [ 77 , 78 ], probiotics [ 79 ] and other value products such as poly-β-hydroxyalkanoates (PHA) [ 69 ]. Dispersed cells of Halomonas growing in alginate beads which produces poly-β-hydroxyalkanoates (PHA), accumulate higher concentrations of these compounds than their counterparts growing planktonically, in the same unbalanced stress-inducing culture medium [ 69 ].…”
Section: Biofilms As Cell Factoriesmentioning
confidence: 99%
“…Cells immobilized on alginate beads have been used in the degradation and biotransformation of pollutants [ 75 ], the preservation of cell viability [ 76 ], and the production of enzymes [ 77 , 78 ], probiotics [ 79 ] and other value products such as poly-β-hydroxyalkanoates (PHA) [ 69 ]. Dispersed cells of Halomonas growing in alginate beads which produces poly-β-hydroxyalkanoates (PHA), accumulate higher concentrations of these compounds than their counterparts growing planktonically, in the same unbalanced stress-inducing culture medium [ 69 ].…”
Section: Biofilms As Cell Factoriesmentioning
confidence: 99%
“…In fact, several researchers have demonstrated that calcium alginate immobilization improved the removal of toxic compounds. For instance, a Pseudomonas strain immobilized in calcium alginate mineralized a 50% more of phenol than free cells under the same conditions [58]. Also, Yañez-Ocampo et al [52] studied the removal of two organophosphate pesticides by a bacterial consortium, and they obtained a percentage of methyl parathion removed 31% higher when the consortium was immobilized in alginate beads, compared with a suspension culture.…”
Section: Resultsmentioning
confidence: 99%
“…Bioremediation uses plants and microorganisms to degrade which in turn is non-hazardous and eco-friendly. Many species of Acinetobacter, Alcaligenes, Arthrobacter, Aspergillus, Bacillus, Candida, Ewingella, Pseudomonas, Ralstonia, Rhodococcus, Sphingomonas and Streptomyces have been used in bioremediation [1], [5]-[11].…”
Section: Introductionmentioning
confidence: 99%
“…The biocompatible matrix is generally used for the purpose which gives the microbial system support for growth, prevention from toxicity, ease of scale-up i.e. use in fermenters or bioreactors, reduces escape of microbes into the effluent stream [5]. Calcium alginate is quite known and used for cell entrapment, whereas, agar had been sparsely used.…”
Section: Introductionmentioning
confidence: 99%