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Cites:

1

Information Journal Paper

Title

CHARACTERIZATION OF BIOFLOCCULANTS PRODUCED BY BACTERIA ISOLATED FROM CRUDE PETROLEUM OIL

Pages

  831-840

Abstract

 The aim of this study was to look for high efficient BIOFLOCCULANT-producing microorganisms. Among 36 bacterial colonies isolated from a crude petroleum oil sample, three of them as Bacillus subtilis and Pseudomonas spp. exhibited FLOCCULATION ACTIVITY exceeding 90 % after 3 days of cultivation. They were identified by 16 S rDNA sequence analysis as Bacillus subtilis and Pseudomonas sp. Spectroscopic analysis of the polymers by nuclear magnetic resonance and fourier-transform infrared revealed that the polymers were glycoproteins. These polymers were soluble in water and insoluble in any organic solvents tested. The effects of BIOFLOCCULANT dosage, temperature and pH on the FLOCCULATION ACTIVITY were evaluated. The maximum bioflocculation activities were observed at an optimum BIOFLOCCULANT dosage of 3.5 mg/L (strains Bacillus subtilis and Pseudomonas) and 5.0 mg/L (strain CPO14), respectively. In addition, these BIOPOLYMERs were able to flocculate kaolin suspension (5 g/L) over a wide range of pH (pH 3–9) and temperature (5–50oC) tested in the presence of CaCl2. The highest flocculation activities of strains CPO8, CPO13 and CPO14 were 96.03 %, 92.17 % and 97.59 %, respectively in the early stationary phase (at 24 h), while the cell production reached its maximum in the stationary phase (at 72 h). Their efficient flocculation capabilities suggest potential applications in industries.

Cites

References

Cite

APA: Copy

ZAKI, S., FARAG, S., ABU ELREESH, G., ELKADY, M., NOSIER, M., & ABD EL HALEEM, D.. (2011). CHARACTERIZATION OF BIOFLOCCULANTS PRODUCED BY BACTERIA ISOLATED FROM CRUDE PETROLEUM OIL. INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY (IJEST), 8(4 (32)), 831-840. SID. https://sid.ir/paper/285399/en

Vancouver: Copy

ZAKI S., FARAG S., ABU ELREESH G., ELKADY M., NOSIER M., ABD EL HALEEM D.. CHARACTERIZATION OF BIOFLOCCULANTS PRODUCED BY BACTERIA ISOLATED FROM CRUDE PETROLEUM OIL. INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY (IJEST)[Internet]. 2011;8(4 (32)):831-840. Available from: https://sid.ir/paper/285399/en

IEEE: Copy

S. ZAKI, S. FARAG, G. ABU ELREESH, M. ELKADY, M. NOSIER, and D. ABD EL HALEEM, “CHARACTERIZATION OF BIOFLOCCULANTS PRODUCED BY BACTERIA ISOLATED FROM CRUDE PETROLEUM OIL,” INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY (IJEST), vol. 8, no. 4 (32), pp. 831–840, 2011, [Online]. Available: https://sid.ir/paper/285399/en

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