Transport phenomena of carbazole biodegradation by immobilized Thalasosspira profundimaris cell and mechanical properties

Nor Hasmaliana Abdul Manas, Muhd Nurul Azam Muhd Drus, Azham Bin Zulkharnain, Josephine Lai Chang Hui, Nur Izyan Wan Azelee, Daniel Joe Dailin

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Carbazole is a heterocyclic aromatic compound that imposes threat to the environment when contaminates water source. A marine-isolated bacterium, Thalassospira profundimaris shows ability to degrade carbazole. The use of free-cell for bioremediation is inefficient as the cells are exposed to harsh environmental condition. In this study, immobilizations of T. profundimaris in gellan gum were investigated to develop robust systems for bioremediation. The mechanical strength and its relationship with transport of carbazole was investigated. The findings proved that concentration of immobilization media affects diffusivity and mechanical strength. Higher media concentration formed a stronger bead with lower diffusivity where lower concentration formed soft bead with higher diffusivity. The optimum concentration of gellan gum was 0.7% (w/v) with 61% carbazole degradation recorded and an optimum diffusivity of 36.8 × 10-7 cm2/s. It has the highest Young's modulus (0.041810 N/mm2) among other concentrations. The findings of the optimum carbazole degradation, strength and diffusivity were profound to increase the performance of the bacteria entrapped inside the immobilization media for bioremediation and withstand harsh environment.

Original languageEnglish
Title of host publicationProceedings of the 2nd International Conference on Biosciences and Medical Engineering, ICBME 2019
Subtitle of host publicationTowards Innovative Research and Cross-Disciplinary Collaborations
EditorsNaji Arafat Mahat, Roswanira Ab. Wahab, Fahrul Zaman Huyop, Aemi Syazwani Abdul Keyon, Nursyafreena Binti Attan, Sheela Chandren, Ida Bagus Wayan Gunam
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735419001
DOIs
Publication statusPublished - 2019 Sep 6
Event2nd International Conference on Biosciences and Medical Engineering 2019: Towards Innovative Research and Cross-Disciplinary Collaborations, ICBME 2019 - Bali, Indonesia
Duration: 2019 Apr 112019 Apr 12

Publication series

NameAIP Conference Proceedings
Volume2155
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference2nd International Conference on Biosciences and Medical Engineering 2019: Towards Innovative Research and Cross-Disciplinary Collaborations, ICBME 2019
CountryIndonesia
CityBali
Period19/4/1119/4/12

    Fingerprint

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Ecology
  • Plant Science
  • Physics and Astronomy(all)
  • Nature and Landscape Conservation

Cite this

Manas, N. H. A., Drus, M. N. A. M., Bin Zulkharnain, A., Hui, J. L. C., Azelee, N. I. W., & Dailin, D. J. (2019). Transport phenomena of carbazole biodegradation by immobilized Thalasosspira profundimaris cell and mechanical properties. In N. A. Mahat, R. A. Wahab, F. Z. Huyop, A. S. A. Keyon, N. B. Attan, S. Chandren, & I. B. W. Gunam (Eds.), Proceedings of the 2nd International Conference on Biosciences and Medical Engineering, ICBME 2019: Towards Innovative Research and Cross-Disciplinary Collaborations [020009] (AIP Conference Proceedings; Vol. 2155). American Institute of Physics Inc.. https://doi.org/10.1063/1.5125513