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117931

Properties and aerogel applications of a marine algal origin biocellulose produced by the immobilized Gluconacetobacter xylinus ATCC 10245

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Last updated: 01 Jan 2025

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Abstract

Algae are known to produce biomass faster as compared with lignocellulosic biomass.  BC was produced by using reducing sugar from algae as a cheaper carbon source. The effect of immobilization on the production of biocellulose(BC) by Gluconacetobacter xylinus ATCC 10245 was studied. The BC production of all entrapped cultures within different gel materials was lower than that of free cell cultures but the entrapped G. xylinus cells in alginate beads recorded the highest BC productivity (12.5 g/l). The adsorption of G. xylinus cells on luffa pulp (LP) and ceramics particles (CP) gave the highest BC production (14.5 g/l), which represents increasing of 1.14 and 1.05- fold, respectively from the free cells. This attempt clarified that LP was the best immobilizing support as it gave the highest BC production. The effect of repeated reuse of LP was confirmed. Different physical properties of BC including; pH, water absorption capacity, dissolving in several solvents, and chemicals were determined. Observation of BC through SEM analysis showed the fine cellulose ribbons (fibrils). The crystallinity for the BC produced from X-ray diffraction (XRD) spectra was 84%. Upon the applicable level, the BC aerogel was formed to be applied in rising up the water and oil absorption capability by developing its hydrophilic properties. Data introduced strong affinities to the motor, olive, and cooking oils with high oil uptake contents of 7.5, 5.2, and 3.7 gg−1, respectively. Moreover, the BC aerogel exhibited potential adsorption for different heavy metal ions Pb2+, Cd2+, and Cu2+. The highest capability of Cd2+ removal was 95.7% at pH 6. The biodegrability of our produced BC and then its safety was proven.

DOI

10.21608/ejabf.2020.117931

Keywords

Biocellulose production, G. xylinus, Immobilization, Aerogel applications, Posidonia oceanic

Authors

First Name

Hassan

Last Name

A.H. Ibrahim

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Orcid

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First Name

Maha

Last Name

M. Bassiouny Beliah

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First Name

Aida

Last Name

M. Farag

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First Name

Amani

Last Name

M.D. ElAhwany

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First Name

Soraya

Last Name

A. Sabry

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Volume

24

Article Issue

7- Special issue

Related Issue

17708

Issue Date

2020-12-01

Receive Date

2020-10-09

Publish Date

2020-12-01

Page Start

51

Page End

71

Print ISSN

1110-6131

Online ISSN

2536-9814

Link

https://ejabf.journals.ekb.eg/article_117931.html

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https://ejabf.journals.ekb.eg/service?article_code=117931

Order

5

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Original Article

Type Code

103

Publication Type

Journal

Publication Title

Egyptian Journal of Aquatic Biology and Fisheries

Publication Link

https://ejabf.journals.ekb.eg/

MainTitle

Properties and aerogel applications of a marine algal origin biocellulose produced by the immobilized Gluconacetobacter xylinus ATCC 10245

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Article

Created At

22 Jan 2023