Effect of different carbon sources on bacterial nanocellulose production and structure using the low pH resistant strain Komagataeibacter medellinensis

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Journal Title
Journal ISSN
Volume Title
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Date
2017-06-11
Major/Subject
Mcode
Degree programme
Language
en
Pages
13
Series
MATERIALS, Volume 10, issue 6
Abstract
Bacterial cellulose (BC) is a polymer obtained by fermentation with microorganism of different genera. Recently, new producer species have been discovered, which require identification of the most important variables affecting cellulose production. In this work, the influence of different carbon sources in BC production by a novel low pH-resistant strain Komagataeibacter medellinensis was established. The Hestrin-Schramm culture medium was used as a reference and was compared to other media comprising glucose, fructose, and sucrose, used as carbon sources at three concentrations (1, 2, and 3% w/v). The BC yield and dynamics of carbon consumption were determined at given fermentation times during cellulose production. While the carbon source did not influence the BC structural characteristics, different production levels were determined: glucose > sucrose > fructose. These results highlight considerations to improve BC industrial production and to establish the BC property space for applications in different fields.
Description
Keywords
Bacterial nanocellulose, Carbon source, Cellulose crystallization, Komagataeibacter medellinensis, Static fermentation
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Citation
Molina-Ramírez , C , Castro , M , Osorio , M , Torres-Taborda , M , Gómez , B , Zuluaga , R , Gómez , C , Gañán , P , Rojas , O J & Castro , C 2017 , ' Effect of different carbon sources on bacterial nanocellulose production and structure using the low pH resistant strain Komagataeibacter medellinensis ' , Materials , vol. 10 , no. 6 , 639 . https://doi.org/10.3390/ma10060639