Synthesis and characterization of bacterial cellulose sulfates using a SO3/pyridine complex in DMAc/LiCl

Development of silver sulfadiazine loaded bacterial cellulose/sodium alginate composite films with enhanced antibacterial property

“…The second weight loss occurred in the range of 220-270 • C involving the complex process of degradation of polysaccharides of SA (Huq et al, 2012;Liu, Dai, Shi, Xiong, & Zhou, 2015). The third rapid weight loss appears in the range of 270-350 • C which can be assigned to the thermal degradation and decomposition of BC, which involves the formation of levoglucosan, transglycosylation and free radical reaction, followed by generation of C, CO, CO 2 , H 2 O and combustible volatiles (Qin et al, 2014;Yan, Chen, Wang, Wang, & Jiang, 2008). In the case of BC/SA-AgSD composites, the third weight loss stages shifted to lower temperature with the increase of AgSD loadings.…”

Synthesis and Characterization of Alkylated Bacterial Cellulose in an Ionic Liquid

“…BC was prepared according to the procedure in our previous report (Qin et al 2014). First, the cultured substances on the surface of BC gels were removed by washing with running tap water.…”

“…), fungi, and also algae Qin et al 2014). BC is different from plant cellulose (PC) in that it is more chemically pure (> 98%), has a higher degree of polymerization (DP, ~10,000), is mechanically stronger (with Young's modulus 15 to 35 GPa, tensile strength 200 to 300 MPa), and has thinner microfibrils (50 to 80 nm, about 200 times thinner than cotton) than PC (Huang et al 2014).…”

“…In order to enhance its properties (adsorption, biodegradability, biomedical, conductivity, catalysis, amphiphillic, solubility, etc. ), BC was chemically modified to prepare BC derivatives through such methods as carboxymethylation (Tabuchi et al 1998), sulfation (Qin et al 2014), acetylation (Sun et al 2007), phosphorylation (Fox and Edgar 2011), benzoylation (Kamitakahara et al 2009), succinylation (Roy et al 2009), silylation (Tabuchi et al 1998), carbanilation (Czaja et al 2004), and oxidation , etc. Chemical modifications of BC have been carried out both heterogeneously and homogeneously.…”

Production and characterization of bacterial cellulose by Leifsonia sp. CBNU-EW3 isolated from the earthworm, Eisenia fetida

“…Bacterial celluloses are universally desired for many industrial applications because of their high crystalline content, degree of polymerization, tensile strength, and degree of purity [2]. Several Grampositive and Gram-negative bacterial isolates belonging to Aerobacter, Acetobacter, Achromobacter, Agrobacterium, Alacaligenes, Azotobacter, Gluconacetobacter, Pseudomonas, Rhizobium, Sarcinaa, and Rhodococcus genera have been reported to be efficient producers of bacterial cellulose (BC), an extracellular polysaccharide [3][4][5]. Indeed, BC is more crystalline and free from other cellular entities compared to plant cellulose.…”