Evaluation of ATR-FTIR for analysis of bacterial cellulose impurities

Fuller, Mark E.; Andaya, Christina; McClay, Kevin

doi:10.1016/j.mimet.2017.10.017

Cited by 52 publications

(24 citation statements)

References 17 publications

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“…The sulfone's oxygen atom of MOPS molecule could probably form strong hydrogen bonds with the hydroxyl groups of the cellulose surface, modifying the resulting spectrum. Alternatively, these bands may reflect the contamination of the KOH‐treated samples with bacterial cell remains (proteins, nucleic acids and lipids), which generally appear as broad bands in the wave‐number range 1750–1400 cm −1 (Fuller et al ., ). The presence of either MOPS or some other compound in the medium during cellulose synthesis seems to have altered the packaging and properties of the resulting material.…”

Section: Resultsmentioning

confidence: 97%

Bacterial nanocellulose production from naphthalene

Marín

Abercron

Urbina

et al. 2019

Microbial Biotechnology

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Summary Polycyclic aromatic compounds (PAHs) are toxic compounds that are released in the environment as a consequence of industrial activities. The restoration of PAH‐polluted sites considers the use of bacteria capable of degrading aromatic compounds to carbon dioxide and water. Here we characterize a new Xanthobacteraceae strain, Starkeya sp. strain N1B, previously isolated during enrichment under microaerophilic conditions, which is capable of using naphthalene crystals as the sole carbon source. The strain produced a structured biofilm when grown on naphthalene crystals, which had the shape of a half‐sphere organized over the crystal. Scanning electron microscopy (SEM) and GC‐MS analysis indicated that the biofilm was essentially made of cellulose, composed of several micron‐long nanofibrils of 60 nm diameter. A cellulosic biofilm was also formed when the cells grew with glucose as the carbon source. Fourier transformed infrared spectroscopy (FTIR) confirmed that the polymer was type I cellulose in both cases, although the crystallinity of the material greatly depended on the carbon source used for growth. Using genome mining and mutant analysis, we identified the genetic complements required for the transformation of naphthalene into cellulose, which seemed to have been successively acquired through horizontal gene transfer. The capacity to develop the biofilm around the crystal was found to be dispensable for growth when naphthalene was used as the carbon source, suggesting that the function of this structure is more intricate than initially thought. This is the first example of the use of toxic aromatic hydrocarbons as the carbon source for bacterial cellulose production. Application of this capacity would allow the remediation of a PAH into such a value‐added polymer with multiple biotechnological usages.

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Section: Resultsmentioning

confidence: 97%

Bacterial nanocellulose production from naphthalene

Marín

Abercron

Urbina

et al. 2019

Microbial Biotechnology

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“…Fermentation was carried out according to the method of Fuller (Fuller et al , ) with slight modification. A 1.8 mL aliquot of viable, activated A. xylinum liquid was added to a 50 mL conical flask containing 30 mL medium for static fermentation.…”

Section: Methodsmentioning

confidence: 99%

The effect of ultraviolet modification of Acetobacter xylinum (CGMCC No. 7431) and the use of coconut milk on the yield and quality of bacterial cellulose

Liu

Yao

et al. 2019

Int J of Food Sci Tech

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Summary This paper reports on the treatment of Acetobacter xylinum (CGMCC No. 7431) by ultraviolet (UV) to investigate the role of mutagenesis on the production of cellulose. When Acetobacter xylinum was treated at intervals of UV mutagenesis, the treatment times of 3 and 4 min formed more compact bacterial cellulose. The activation conditions, including the medium nutrients that affected the yield of bacterial cellulose, were investigated including the use of coconut milk. The optimal yield of bacterial cellulose was 43.91 ± 3.89 g L−1, which was 1.22 times higher than that obtained from the wild type without any treatment. The experimental results suggested that different UV factors could significantly affect the yield of bacterial cellulose. The resulting bacterial cellulose has a potential as a novel functional food material.

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“…BC pellicle is produced from the glucose fermentation by Acetobacter xylinum bacteria for resulting the cellulose. BC films have advantages as paper, food, biomedicine, and filtration membranes [6]- [8]. BC is a natural polymer which have superior properties, like high degree of porosity, high purity, high permeability relative to gases and liquids, strength and ultrafine tissue, and high water absorption [8].…”

Section: Introductionmentioning

confidence: 99%

“…BC films have advantages as paper, food, biomedicine, and filtration membranes [6]- [8]. BC is a natural polymer which have superior properties, like high degree of porosity, high purity, high permeability relative to gases and liquids, strength and ultrafine tissue, and high water absorption [8]. BC has a high surface activity because of its fibril; its tensile modulus can reach [16][17][18][19][20][21][22][23][24][25][26][27][28][29][30] GPa.…”

Section: Introductionmentioning

confidence: 99%

The Effect of Chemical Pretreatment Process on Mechanical Properties and Porosity of Cellulose Bacterial Film

Sutrisno

Suryanto

Wulandari

et al. 2019

JMEST

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Bacterial cellulose (BC) is a natural polymer which have superior properties, like high porosity, high purity, and high permeability. The study objective is to determine the influence of chemical pretreatment on tensile strength and the porosity of BC. The method was to make BC films from pineapple peel extract through fermentation process for 14 days. The pretreatment was conducted by immersion of BC in BmimCl, H2O2, and NaOH solution with a concentration of 2.5%; 5%; and 7.5 %, heated at 80 °C then dried in the oven, and the samples were then tested by a tensile test using ASTM-D636-V standard, morphology analysis using Scanning Electron Microscope, and porosity analysis. The results indicate that the tensile strength of control sample was 123 MPa, whereas after chemical pretreatment, the tensile strength was decreased with the greater reduction occurred using NaOH pretreatment compared than the other solutions that having a lower tensile strength of 8.54 MPa at 7.5 % of NaOH. The results of porosity show that the value increased after being treated chemically. The BC film porosity was 87.13% after NaOH treatment of 7.5% while BC film untreated had porosity of 19.15%. This phenomenon was occurred due to the increasing pore, so the absorption of water increased.

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Evaluation of ATR-FTIR for analysis of bacterial cellulose impurities

Cited by 52 publications

References 17 publications

Bacterial nanocellulose production from naphthalene

Bacterial nanocellulose production from naphthalene

The effect of ultraviolet modification of Acetobacter xylinum (CGMCC No. 7431) and the use of coconut milk on the yield and quality of bacterial cellulose

The Effect of Chemical Pretreatment Process on Mechanical Properties and Porosity of Cellulose Bacterial Film

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