Bacterial cellulose is composed of an ultrafine nanofiber network and well-ordered structure; therefore, it offers several advantages when used as native polymer or in composite systems. In this study, a pool of 34 acetic acid bacteria strains belonging to Komagataeibacter xylinus were screened for their ability to produce bacterial cellulose. Bacterial cellulose layers of different thickness were observed for all the culture strains. A high-producing strain, which secreted more than 23 g/L of bacterial cellulose on the isolation broth during 10 days of static cultivation, was selected and tested in optimized culture conditions. In static conditions, the increase of cellulose yield and the reduction of by-products such as gluconic acid were observed. Dried bacterial cellulose obtained in the optimized broth was characterized to determine its microstructural, thermal, and mechanical properties. All the findings of this study support the use of bacterial cellulose produced by the selected strain for biomedical and food applications.

Increased production of bacterial cellulose as starting point for scaled-up applications / Gullo, Maria; Sola, Antonella; Zanichelli, Gabriele; Montorsi, Monia; Messori, Massimo; Giudici, Paolo. - In: APPLIED MICROBIOLOGY AND BIOTECHNOLOGY. - ISSN 0175-7598. - 101:22(2017), pp. 8115-8127. [10.1007/s00253-017-8539-3]

Increased production of bacterial cellulose as starting point for scaled-up applications

GULLO, Maria
Conceptualization
;
SOLA, Antonella;ZANICHELLI, GABRIELE;MONTORSI, Monia;MESSORI, Massimo;GIUDICI, Paolo
2017

Abstract

Bacterial cellulose is composed of an ultrafine nanofiber network and well-ordered structure; therefore, it offers several advantages when used as native polymer or in composite systems. In this study, a pool of 34 acetic acid bacteria strains belonging to Komagataeibacter xylinus were screened for their ability to produce bacterial cellulose. Bacterial cellulose layers of different thickness were observed for all the culture strains. A high-producing strain, which secreted more than 23 g/L of bacterial cellulose on the isolation broth during 10 days of static cultivation, was selected and tested in optimized culture conditions. In static conditions, the increase of cellulose yield and the reduction of by-products such as gluconic acid were observed. Dried bacterial cellulose obtained in the optimized broth was characterized to determine its microstructural, thermal, and mechanical properties. All the findings of this study support the use of bacterial cellulose produced by the selected strain for biomedical and food applications.
2017
30-set-2017
101
22
8115
8127
Increased production of bacterial cellulose as starting point for scaled-up applications / Gullo, Maria; Sola, Antonella; Zanichelli, Gabriele; Montorsi, Monia; Messori, Massimo; Giudici, Paolo. - In: APPLIED MICROBIOLOGY AND BIOTECHNOLOGY. - ISSN 0175-7598. - 101:22(2017), pp. 8115-8127. [10.1007/s00253-017-8539-3]
Gullo, Maria; Sola, Antonella; Zanichelli, Gabriele; Montorsi, Monia; Messori, Massimo; Giudici, Paolo
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11380/1146395
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