Study of sodium tripolyphosphate-crosslinked chitosan beads entrapped with Pseudomonas putida for phenol degradation

Hsieh, Feng Ming; Huang, Chih Hsuan; Lin, Tsair Fuh; Chen, Yan Min; Lin, Jui Che

doi:10.1016/j.procbio.2007.10.016

Cited by 67 publications

(30 citation statements)

References 17 publications

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“…Immobilised cells and enzymes have been used for the production of electricity, hydrogen, polysaccharides, glycerol, and for removal of heavy metals (Hameed and Ebrahim 2007). Hsieh et al (2008) showed that immobilised bacterial cells are more resistant to environmental burdens and more efficient at degrading phenol compared to similar free-living cells.…”

Section: Introductionmentioning

confidence: 99%

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Vegetative cells of Bacillus pumilus entrapped in chitosan beads as a product for hydrocarbon biodegradation

Costa

Angelim

Sousa

et al. 2014

International Biodeterioration & Biodegradation

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Section: Introductionmentioning

confidence: 99%

“…Chen et al (2007) and Hsieh et al (2008) entrapped the Gramnegative bacterium Pseudomonas putida in chitosan beads by using tripolyphosphate as a coagulant agent, and showed biodegradation of phenol by the entrapped cells.…”

Section: Introductionmentioning

confidence: 99%

Vegetative cells of Bacillus pumilus entrapped in chitosan beads as a product for hydrocarbon biodegradation

Costa

Angelim

Sousa

et al. 2014

International Biodeterioration & Biodegradation

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“…This continued improvement in the performance of the biomass upon repeated use has been highlighted by others (Hsieh et al, 2008;El-Naas et al, 2013;Varma and Gaikwad, 2009;Ali et al, 2013). The biodegradation rates were calculated from the slopes of the best fitted straight line, ignoring the initial segment of fast drop in DCP concentration as it is thought to be much influenced by the dilution effect of water release from the PVA gel particles (water accounts for about 90% of the gel mass).…”

Section: Effect Of Initial Dcp Concentrationmentioning

confidence: 87%

Biodegradation of 2, 4 Dichlorophenol

Al-Khalid¹,

El‐Naas²

2017

American Journal of Engineering and Applied Sciences

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Abstract:The present study focuses on the optimization of process parameters of the aerobic biodegradation of 2, 4 Dichlorophenol (2, 4 DCP) by a commercial strain of P. putida immobilized in PVA gel matrix, using design of experiments by Response Surface Methodology (RSM). The degradation rates obtained from these experiments were used to evaluate the effects of the main factors and their interactions during the biodegradation of 2, 4 DCP. An effective quadratic regression model predicting the rate in terms of the main independent variables, namely temperature, initial pH and initial concentration of 2, 4 DCP, was developed. The optimum conditions for DCP degradation were obtained as follows: Temperature 32.6°C, pH 5.0 and initial DCP concentration 70.5 mg L −1 , resulting in a maximum predicted degradation rate of 41.8 mg L. Under these optimized conditions, a degradation rate of 40.1 mg L −1 h −1was experimentally obtained, thus validating the model.

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“…These effects were likely due to the ability of phenol to damage microbial cells through alteration of the selective permeability of the cytoplasmic membrane and enzyme deactivation (Hsieh et al 2008). However, whenever the microorganisms were compatible to the environment, they also had good degradation rate.…”

Section: Effect Of Temperaturementioning

confidence: 99%

Study of phenol biodegradation using Bacillus amyloliquefaciens strain WJDB-1 immobilized in alginate–chitosan–alginate (ACA) microcapsules by electrochemical method

Zhang

Niu

et al. 2011

Biodegradation

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An aerobic microorganism with an ability to utilize phenol as sole carbon and energy source was isolated from phenol-contaminated wastewater samples. The isolate was identified as Bacillus amyloliquefaciens strain WJDB-1 based on morphological, physiological, and biochemical characteristics, and 16S rDNA sequence analysis. Strain WJDB-1 immobilized in alginate-chitosan-alginate (ACA) microcapsules could degrade 200 mg/l phenol completely within 36 h. The concentration of phenol was determined using differential pulse voltammetry (DPV) at glassy carbon electrode (GCE) with a linear relationship between peak current and phenol concentration ranging from 2.0 to 20.0 mg/l. Cells immobilized in ACA microcapsules were found to be superior to the free suspended ones in terms of improving the tolerance to the environmental loadings. The optimal conditions to prepare microcapsules for achieving higher phenol degradation rate were investigated by changing the concentrations of sodium alginate, calcium chloride, and chitosan. Furthermore, the efficiency of phenol degradation was optimized by adjusting various processing parameters, such as the number of microcapsules, pH value, temperature, and the initial concentration of phenol. This microorganism has the potential for the efficient treatment of organic pollutants in wastewater.

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Study of sodium tripolyphosphate-crosslinked chitosan beads entrapped with Pseudomonas putida for phenol degradation

Cited by 67 publications

References 17 publications

Vegetative cells of Bacillus pumilus entrapped in chitosan beads as a product for hydrocarbon biodegradation

Vegetative cells of Bacillus pumilus entrapped in chitosan beads as a product for hydrocarbon biodegradation

Biodegradation of 2, 4 Dichlorophenol

Study of phenol biodegradation using Bacillus amyloliquefaciens strain WJDB-1 immobilized in alginate–chitosan–alginate (ACA) microcapsules by electrochemical method

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