Physical, structural, mechanical and thermal characterization of bacterial cellulose by G. hansenii NCIM 2529

Mohite, Bhavana V.; Patil, Satish V.

doi:10.1016/j.carbpol.2014.02.012

Cited by 125 publications

(56 citation statements)

References 52 publications

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“…It is considered that closely arranged microfibrils bind the water molecules more efficiently due to the stronger hydrogen bonding interactions, as compared to the loosely arranged microfibrils [72,73]. Furthermore, it was demonstrated that more water can be retained due to the larger surface area provided by thinner and longer fibers [74]. In the present study, it was also shown that RMF exposed BC released water slightly slower and required the highest temperature to release water molecules as compared to the unexposed controls.…”

Section: Discussionsupporting

confidence: 60%

Time Dependent Influence of Rotating Magnetic Field on Bacterial Cellulose

Fijałkowski

Rakoczy

Żywicka

et al. 2016

International Journal of Polymer Science

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The aim of the study was to assess the influence of rotating magnetic field (RMF) on the morphology, physicochemical properties, and the water holding capacity of bacterial cellulose (BC) synthetized by Gluconacetobacter xylinus. The cultures of G. xylinus were exposed to RMF of frequency that equals 50 Hz and magnetic induction 34 mT for 3, 5, and 7 days during cultivation at 28 ∘ C in the customized RMF exposure system. It was revealed that BC exposed for 3 days to RMF exhibited the highest water retention capacity as compared to the samples exposed for 5 and 7 days. The observation was confirmed for both the control and RMF exposed BC. It was proved that the BC exposed samples showed up to 26% higher water retention capacity as compared to the control samples. These samples also required the highest temperature to release the water molecules. Such findings agreed with the observation via SEM examination which revealed that the structure of BC synthesized for 7 days was more compacted than the sample exposed to RMF for 3 days. Furthermore, the analysis of 2D correlation of Fourier transform infrared spectra demonstrated the impact of RMF exposure on the dynamics of BC microfibers crystallinity formation.

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Section: Discussionsupporting

confidence: 60%

Time Dependent Influence of Rotating Magnetic Field on Bacterial Cellulose

Fijałkowski

Rakoczy

Żywicka

et al. 2016

International Journal of Polymer Science

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“…Gluconacetobacter sp. is a common bacterium for BC production (Nguyen and others ; Mohite and Patil ). Several studies reported different strategies to improve the yield of BC production from Gluconacetobacter hansenii (Shezad and others ).…”

Section: Introductionmentioning

confidence: 99%

Characterization of Bacterial Cellulose by Gluconacetobacter hansenii CGMCC 3917

Feng

Ullah

Wang

et al. 2015

Journal of Food Science

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In this study, comprehensive characterization and drying methods on properties of bacterial cellulose were analyzed. Bacterial cellulose was prepared by Gluconacetobacter hansenii CGMCC 3917, which was mutated by high hydrostatic pressure (HHP) treatment. Bacterial cellulose is mainly comprised of cellulose Iα with high crystallinity and purity. High-water holding and absorption capacity were examined by reticulated structure. Thermogravimetric analysis showed high thermal stability. High tensile strength and Young's modulus indicated its mechanical properties. The rheological analysis showed that bacterial cellulose had good consistency and viscosity. These results indicated that bacterial cellulose is a potential food additive and also could be used for a food packaging material. The high textural stability during freeze-thaw cycles makes bacterial cellulose an effective additive for frozen food products. In addition, the properties of bacterial cellulose can be affected by drying methods. Our results suggest that the bacterial cellulose produced from HHP-mutant strain has an effective characterization, which can be used for a wide range of applications in food industry.

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“…collagen) (Saska et al, 2012) Ethyl-, propyl-, i-propyl-, nbutyl BC derivatives with better solubility in low polar solvents (Lin et al, 2013b) Improved water solubility (Geyer et al, 1994) Improved protein adsorption (Lin et al, 2015) Hydrophobizat ion of BC surface Active site for further modifications Carbon reactivity: C(6)>>C (2) (Luo et al, 2014b) Shaking conditions result in thinner and longer BC fibers (Mohite and Patil, 2014) 50% loss in fiber diameter (Grande et al, 2009a) Increased microfibril diameter (Ha et al, 2011) Composite with suitable electrical properties (Luo et al, 2014a) Scaffold with improved biocompatibility for bone regeneration (Grande et al, 2009a) Material adsorbent for heavy metals Material with high efficiency in wound healing (Wiegand et al, 2006) Promising material for wound healing therapy (Fu et al, 2014;Phisalaphong and Jatupaiboon, 2008) Composites with great antimicrobial activity ( grafting of methyl terminated octadecyltrichlorosilane (Taokaew et al, 2015) grafting of amine terminated 3-aminopropyltriethoxysilane (Taokaew et al, 2015) RGD peptides:  Attachment through cellulose binding modules )  Attachment through xyloglucan binding modules IKVAV peptide sequence:  Attachment through carbohydrate binding modules (Pertile et al, 2012) ɛ-Polylysine:  Penetration of a solution into the BC matrix followed by crosslinking with procyanidins (Gao et al, 2011) Poly-L-lysine hydrobromide:  Penetration of a solution into the BC matrix (Culebras et al, 2015) Macrophagestimulating protein:  Penetration of a solution into the BC matrix (Zhao et al, 2015) Silk fibroin:  Penetration of a solution into the BC matrix (Olivera Barud et al, 2015) Growth factors:  Penetration of a solution into the BC matrix Shi et al, 2012b) Collagen:  Penetration of a solution into the BC matrix Culebras et al, 2015)<...>…”

Section: Control Of Chain Lengthmentioning

confidence: 98%