Tuning the physiochemical properties of bacterial cellulose: effect of drying conditions

Illa, Mani Pujitha; Sharma, Chandra Shekhar; Khandelwal, Mudrika

doi:10.1007/s10853-019-03737-9

Cited by 96 publications

(52 citation statements)

References 33 publications

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“…Statistical analysis showed a high correlation between the medium composition and the tensile strength (Table 3). Numerous authors have obtained results of bacterial cellulose strength at the level of several dozen MPa; however, many factors influence these properties (Krystynowicz et al 2002;Illa et al 2019). Statistically significant differences were found in tests for cellulose tensile strength between different culture media used in the study.…”

Section: Resultsmentioning

confidence: 84%

“…The unique properties of bacterial cellulose depend not only on the strain of microorganisms, but primarily on the culture conditions, including the composition of the culture medium (Illa et al 2019). Chen et al (2019) studied the effect of mono-and disaccharides on the efficiency of cellulose synthesis by Komagataeibacter xylinus, while Illa et al (2019) assessed the effect of drying conditions on the physical, chemical, and morphological properties of cellulose.…”

Section: Introductionmentioning

confidence: 99%

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The influence of culture medium components on the physical and mechanical properties of cellulose synthesized by kombucha microorganisms

Betlej

Salerno-Kochan

Krajewski

et al. 2020

BioRes

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Preliminary studies are presented showing to what extent nutrients available in the growth environment of Kombucha microorganisms affect the physical and mechanical properties of synthesized cellulose. With an increase in the amount of sucrose in the growth medium and with the presence of additional nutrients, peptone and tea extract, the thickness and strength of the biopolymer increased, while elongation was reduced. The best physical and mechanical parameters were obtained for bacterial cellulose from cultures with the addition of 10% sucrose and 0.25% peptone content. The increase in elongation correlated with the decrease in the degree of polymerization, which means that in media rich in nutrients, the number of molecules building the polymer decreases. The presented data is important in order to select ingredients that will help synthesize bacterial cellulose with the desired physio-mechanical properties.

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Section: Resultsmentioning

confidence: 84%

Section: Introductionmentioning

confidence: 99%

The influence of culture medium components on the physical and mechanical properties of cellulose synthesized by kombucha microorganisms

Betlej

Salerno-Kochan

Krajewski

et al. 2020

BioRes

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“…The BC membranes comprise hydrophilic nanofibers with a small pore size as seen from the SEM micrographs. 37 Upon, prewetting with water, BC membranes provide a continuous path for water in the oil/water emulsion to pass through. This retains the oil on the membrane, which is further aided by small pore size, as shown in Figure 5.…”

Section: Filtration Studiesmentioning

confidence: 99%

“…[34][35][36] The high wet strength and nano-meso-microporous structure of BC makes it one of the most suitable candidate for filtration membranes. [37][38][39][40] A few reports are available where BC, being hydrophilic, has been chemically modified to obtain an amphiphilic membrane. For instance, modification of BC membrane by alkoxysilanes resulted in an amphiphilic membrane and was successfully used to separate surfactant stabilized oil in water and water in oil emulsions.…”

Section: Introductionmentioning

confidence: 99%

“…Bacterial cellulose (BC), produced by certain species of bacteria (such as Acetobacter Xyllinum , Acetobacter pasteurianum , Acetobacter rancens , Sarcina ventriculi ), is a three‐dimensional porous network of 100% pure, semicrystalline cellulose nanofiber 34–36 . The high wet strength and nano‐meso‐microporous structure of BC makes it one of the most suitable candidate for filtration membranes 37–40 . A few reports are available where BC, being hydrophilic, has been chemically modified to obtain an amphiphilic membrane.…”

Section: Introductionmentioning

confidence: 99%

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Hierarchical amphiphilic high‐efficiency oil–water separation membranes from fermentation derived cellulose and recycled polystyrene

Raghavan

Khandelwal

2020

J of Applied Polymer Sci

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A high-efficiency separation of oil and water can be achieved by using specially designed amphiphilic porous membrane. However, the preparation of such membranes often involves complex multistep chemical processes. Herein, we report an amphiphilic composite membrane (polystyrene [PS]/bacterial cellulose [BC] membrane) consisting of hydrophobic recycled PS and hydrophilic BC, fabricated by a facile in situ fermentation process. Not only these membranes exhibit a combination of contrasting wettability but also comprise of a hierarchical network of microfibers and nanofibers, which makes them ideal for oil-water separation. The structural and morphological properties of asproduced BC, recycled PS membrane, and PS/BC composite membrane were studied by Fourier transform infrared spectroscopy and scanning electron microscopy, respectively. The ability of the membranes to separate oil and water was tested by using an emulsion of hexane-in-water as the feed and the collected filtrates were characterized by optical microscopy and UV-Vis spectroscopy. PS membranes were unable to separate oil and water, while the PS/BC membrane efficiently separated water from the emulsion. PS/BC composite membranes showed a high water recovery of more than 90%, against only 57% recovery shown by BC. Mechanisms of oil-water separation for each membrane are discussed. The reusability of the PS/BC composite membrane was also demonstrated.

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Insights into Hierarchical Structure–Property–Application Relationships of Advanced Bacterial Cellulose Materials

Chen

et al. 2023

Adv Funct Materials

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Bacterial cellulose (BC) is an environmentally friendly biomaterial that is widely investigated because it possesses a unique hierarchical nanofiber network structure as well as extraordinary performance. In this review, the formation of the BC hierarchical nanofiber network structure from the perspective of biosynthesis is illustrated based on its basic chemical and crystal structure. Moreover, the design and processing of BC-based advanced materials through biosynthesis, physical, and/or chemical modification are also reviewed. The intrinsic characteristics of BC, derived from its hierarchical structure, are analyzed to understand its structure-property-application relationships. The applications of advanced BC-based materials are reviewed, such as high-strength structural materials utilizing the properties of nanofibers, energy conversion and storage, bioelectronic interfaces, environmental remediation, and thermal management applications utilizing the ion transport properties and 3D network structures of these materials. In addition, the authors also offer their opinions and potential future research directions for sustainably developing BC-based materials.

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Tuning the physiochemical properties of bacterial cellulose: effect of drying conditions

Cited by 96 publications

References 33 publications

The influence of culture medium components on the physical and mechanical properties of cellulose synthesized by kombucha microorganisms

The influence of culture medium components on the physical and mechanical properties of cellulose synthesized by kombucha microorganisms

Hierarchical amphiphilic high‐efficiency oil–water separation membranes from fermentation derived cellulose and recycled polystyrene

Insights into Hierarchical Structure–Property–Application Relationships of Advanced Bacterial Cellulose Materials

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