Comprehensive Characterisation of the Morphological, Thermal and Kinetic Degradation Properties of <i>Gluconacetobacter xylinus</i> synthesised Bacterial Nanocellulose

Nyakuma, Bemgba Bevan; Wong, Syieluing; Utume, L; Abdullah, Tuan Amran Tuan; Abba, Mustapha; Oladokun, Olagoke; Ivase, Tertsegha J-P.; Ogunbode, Ezekiel Babatunde

doi:10.1080/15440478.2021.1907833

Cited by 8 publications

(5 citation statements)

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“…The method produced nanofibers of 30–50 nm in size. Nyakuma et al 36 synthesized bacterial nanofibrillar cellulose (BNC) using acinetobacter glucose. The prepared BNC was studied via thermogravimetric analysis, scanning electron microscopy, and kinetic modeling.…”

Section: Preparation Of Nanocellulosementioning

confidence: 99%

Preparation of nanocellulose and application of nanocellulose polyurethane composites

Mo,

Huang,

Yue

et al. 2024

RSC Adv.

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Section: Preparation Of Nanocellulosementioning

confidence: 99%

Preparation of nanocellulose and application of nanocellulose polyurethane composites

Mo,

Huang,

Yue

et al. 2024

RSC Adv.

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“…Table 1 shows the features of bacterial cellulose produced by strain SEE-3 in comparison with other bacterial species 39,[89][90][91][92][93][94][95] .…”

Section: X-ray Diffraction (Xrd)mentioning

confidence: 99%

“…strain SEE-3 using Cantaloupe juice. Thermal stability of the bacterial cellulose produced by the strain SEE-3 has been compared with other bacterial nanocellulose (Table 1) [89][90][91][92][93][94][95] . The bacterial nanocellulose produced by SEE-3 had greater thermal stability, as a very low mass loss rate of 0.619% began at 413.07-799.76 °C, while the BC (nata de coco) produced by Komagataeibacter xylinus showed a mass loss rate of 0.77% at 335°C 89 .…”

Section: Thermogravimetric Analysis (Tga)mentioning

confidence: 99%

Bacterial nanocellulose production using Cantaloupe juice, statistical optimization and characterization

El‐Naggar

Mohammed

El-Malkey

2023

Sci Rep

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The bacterial nanocellulose has been used in a wide range of biomedical applications including carriers for drug delivery, blood vessels, artificial skin and wound dressing. The total of ten morphologically different bacterial strains were screened for their potential to produce bacterial nanocellulose (BNC). Among these isolates, Bacillus sp. strain SEE-3 exhibited potent ability to produce the bacterial nanocellulose. The crystallinity, particle size and morphology of the purified biosynthesized nanocellulose were characterized. The cellulose nanofibers possess a negatively charged surface of − 14.7 mV. The SEM images of the bacterial nanocellulose confirms the formation of fiber-shaped particles with diameters of 20.12‒47.36 nm. The TEM images show needle-shaped particles with diameters of 30‒40 nm and lengths of 560‒1400 nm. X-ray diffraction show that the obtained bacterial nanocellulose has crystallinity degree value of 79.58%. FTIR spectra revealed the characteristic bands of the cellulose crystalline structure. The thermogravimetric analysis revealed high thermal stability. Optimization of the bacterial nanocellulose production was achieved using Plackett–Burman and face centered central composite designs. Using the desirability function, the optimum conditions for maximum bacterial nanocellulose production was determined theoretically and verified experimentally. Maximum BNC production (20.31 g/L) by Bacillus sp. strain SEE-3 was obtained using medium volume; 100 mL/250 mL conical flask, inoculum size; 5%, v/v, citric acid; 1.5 g/L, yeast extract; 5 g/L, temperature; 37 °C, Na2HPO4; 3 g/L, an initial pH level of 5, Cantaloupe juice concentration of 81.27 percent and peptone 11.22 g/L.

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“…However, the BNC biofilm production process has a significant hurdle arising from the complex interplay of bacterial growth conditions and shifts in bacterial behavior during the production phase. This intricacy often renders the conversion of these BNC biofilms into a reproducible, practical, and useable form a challenging endeavor . Moreover, the presence of heterogeneity in cell density further compounds this process, resulting in BNC biofilms exhibiting nonuniform compositions characterized by clusters of dense regions.…”

Section: Introductionmentioning

confidence: 99%

“…This intricacy often renders the conversion of these BNC biofilms into a reproducible, practical, and useable form a challenging endeavor. 24 Moreover, the presence of heterogeneity in cell density further compounds this process, resulting in BNC biofilms exhibiting nonuniform compositions characterized by clusters of dense regions. Despite concerted efforts to address these issues, anomalies and irregularities persist within the pellicles.…”

Section: Introductionmentioning

confidence: 99%

Effect of Quorum Sensing Molecules on the Quality of Bacterial Nanocellulose Materials

Jabbour,

Kang,

Sobhi

2024

ACS Omega

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Bacterial nanocellulose (BNC) biofilms, produced by various bacterial species, such as Gluconacetobacter xylinus, represent a highly promising multifunctional material characterized by distinctive physiochemical properties. These biofilms have demonstrated remarkable versatility as nano biomaterials, finding extensive applications across medical, defense, electronics, optics, and food industries. In contrast to plant cellulose, BNC biofilms exhibit numerous advantages, including elevated purity and crystallinity, expansive surface area, robustness, and excellent biocompatibility, making them exceptional multifunctional materials. However, their production with consistent morphological properties and their transformation into practical forms present challenges. This difficulty often arises from the heterogeneity in cell density, which is influenced by the presence of N-acyl-homoserine lactones (AHLs) serving as quorum sensing signaling molecules during the biosynthesis of BNC biofilms. In this study, we employed surface characterization methodologies including scanning electron microscopy, energy-dispersive spectroscopy, diffuse reflectance infrared Fourier transform spectroscopy, and atomic force microscopy to characterize BNC biofilms derived from growth media supplemented with varying concentrations of distinct N-acyl-homoserine lactone signaling molecules. The data obtained through these analytical techniques elucidated that the morphological properties of the BNC biofilms were influenced by the specific AHLs, signaling molecules, introduced into the growth media. These findings lay the groundwork for future exploration of leveraging synthetic biology and biomimetic methods for tailoring BNC with predetermined morphological properties.

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Comprehensive Characterisation of the Morphological, Thermal and Kinetic Degradation Properties of Gluconacetobacter xylinus synthesised Bacterial Nanocellulose

Cited by 8 publications

References 50 publications

Preparation of nanocellulose and application of nanocellulose polyurethane composites

Preparation of nanocellulose and application of nanocellulose polyurethane composites

Bacterial nanocellulose production using Cantaloupe juice, statistical optimization and characterization

Effect of Quorum Sensing Molecules on the Quality of Bacterial Nanocellulose Materials

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