Characterization of purified bacterial cellulose focused on its use on paper restoration

Bacterial cellulose as a material for wound treatment: Properties and modifications. A review

“…The contradictory results obtained by Tang et al (2009) and Santos et al (2015) may be attributed to the different processing conditions for purification and to different approaches used for pore size distribution measurements.…”

“…This effect was apparently related to the swelling ability of the reagent, which increased the fibril diameters and thereby reduced the effective pore size (Tang et al, 2009). A recent investigation, however, showed controversial results: Santos et al (2015) observed an increase of total porosity after alkali treatment of BC with NaOH.…”

Production of Bacterial Cellulose by Acetobacter xylinum through Utilizing Acetic Acid Hydrolysate of Bagasse as Low-cost Carbon Source

“…Each pattern exhibited two diffraction dominant peaks, the first one was located between 13 and 16, and the second one was located between 21 and 25, which confirmed that only cellulose I including crystalline phase Iα and Iβ was present in the two BC samples. The first peak represents the projection of the planes (100) of fraction Iα and (110 and 010) of fraction Iβ, and the second peak represents the projection of the planes (110) Iα and (200) Iβ (Gea et al 2011;Santos et al 2015).…”

“…Compared with natural plant cellulose, bacterial cellulose is devoid of other contaminating polysaccharides such as lignin and hemicellulose; it exhibits many superior physicochemical properties such as high purity, high crystallinity, high degree of polymerization, nano-structured network, high wet tensile strength, high water-holding capacity, and good biocompatibility (Hong and Qiu 2008;Li et al 2015;Santos et al 2015;Xu et al 2015). These desirable characteristics are of interest for broad prospective applications bringing tremendous economic and societal benefits in diverse fields including biomedical materials, food matrix, textiles, electronic displays, audio membranes, functional papers, etc.…”

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

“…Characteristic absorption peaks of bacterial cellulose were absorbed at 3350/cm and also showed several bands at 1600 ~ 1250/cm, indicative of O-H stretching related to the cellulose region and CH stretching at 2930/cm. In addition, the absorption bands at 1650, 1560, 1424, and 1060/cm were attributed to C-H stretching of -CH 2 , O-H bending of adsorbed water, -CH 2 symmetric bending and C-O-C pyranose ring skeletal vibrations, respectively [3,7,[24][25][26][27]. According to studies by Nelson & Connor [28] and Bhavna et al [29], the weak, broad band at 891/cm and strong band centered at 1424 cm -1 in the spectra of microbial cellulose correlates with CH 2 scissoring, which is highly indicative of cellulose.…”