Producing and evaluating of bacterial nano-cellulose (BNC) using Acetobacter xylinum bacteria

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Zeydanlou S.; ARYAIE MONFARED M.H.; Dehghani Firuzabadi M.R.; AFRA E.

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Journal: Journal of Wood and Forest Science and Technology Year:2019 | Volume:26 | Issue:3 Page(s): 29-42

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Title

Producing and evaluating of bacterial nano-cellulose (BNC) using Acetobacter xylinum bacteria

Author(s)

Zeydanlou S. | ARYAIE MONFARED M.H. | Dehghani Firuzabadi M.R. | AFRA E. | Issue Writer Certificate

Keywords

Acetobacter xylinum bacteriaQ1

Static cultureQ1

Dynamic cultureQ1

Bacterial nano-cellulose (BNC)Q1

Abstract

Background and Objectives: Cellulose is a high-strength natural polymer per unit weight and is the main building material of plant fibers. Many properties of the cellulose depend on the chain length or degree of polymerization, the ratio of the amorphous to the crystalline segments, as well as the crystal structure. While harsh chemicals or mechanical treatments are used in many nanocellulose extraction methods; cellulose is obtained with pristine properties but nanometer-sized by only very limited methods that bacterial nanocellulose is the most important of them. Bacterial nano-cellulose (BNC) due to special microscopic structures has a high potential in special uses (such as medical and sanitary applications). BNC differs from plant cellulose in its higher purity, crystallinity, and degree of polymerization. The goal of this study was to investigate the production of BNC using Acetobacter xylinum bacteria and its characteristics evaluation. Materials and Methods: In order to obtain BNC in this research, the bacterium was cultured in a liquid culture medium under static and dynamic conditions and the resulting cellulose was washed and purified. Microstructures with field emission scanning electron microscopy (FE-SEM), crystallinity structure by X-ray diffraction (XRD), weight percentage, size and distribution of BNC with energy-dispersive X-ray spectroscopy (EDX), determination of viscosity and molecular weight by dissolving of cellulose in copper(II)-ethylenediamine complex (CED) solution, and BNC yield by weighing wet and dry samples were studied. Results: The results showed that yield of BNC Static culture medium is more than BNC Dynamic culture medium. Comparison of FE-SEM images showed that the culture method has a significant effect on the morphology structure of the BNCs fibers produced. Comparison of FE-SEM images of two culture methods showed that the morphology of BNC in static cultivation is porous and in dynamic is clustered together. The size of nanoparticles is generally below 60 nm for both BNCs. The results of XRD test showed that the crystallinity of BNCs in the static and dynamic medium was 72. 49% and 14. 29%, respectively. Also, viscosity of BNCs in the static and dynamic medium was 110. 7 centipoise (cP) and 97 cP, respectively. Conclusion: In general, with respect to characteristics of BNC produced and comparison with other studies, we concluded that suitable BNC has been produced in this study that with respect to research needed in this field in the country and medical applications and engineering are important.

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APA: Copy

Zeydanlou, S., ARYAIE MONFARED, M.H., Dehghani Firuzabadi, M.R., & AFRA, E.. (2019). Producing and evaluating of bacterial nano-cellulose (BNC) using Acetobacter xylinum bacteria. JOURNAL OF WOOD AND FOREST SCIENCE AND TECHNOLOGY, 26(3 ), 29-42. SID. https://sid.ir/paper/396703/en

Vancouver: Copy

Zeydanlou S., ARYAIE MONFARED M.H., Dehghani Firuzabadi M.R., AFRA E.. Producing and evaluating of bacterial nano-cellulose (BNC) using Acetobacter xylinum bacteria. JOURNAL OF WOOD AND FOREST SCIENCE AND TECHNOLOGY[Internet]. 2019;26(3 ):29-42. Available from: https://sid.ir/paper/396703/en

IEEE: Copy

S. Zeydanlou, M.H. ARYAIE MONFARED, M.R. Dehghani Firuzabadi, and E. AFRA, “Producing and evaluating of bacterial nano-cellulose (BNC) using Acetobacter xylinum bacteria,” JOURNAL OF WOOD AND FOREST SCIENCE AND TECHNOLOGY, vol. 26, no. 3 , pp. 29–42, 2019, [Online]. Available: https://sid.ir/paper/396703/en

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