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Materials 2017, 10(6), 639; doi:10.3390/ma10060639

Effect of Different Carbon Sources on Bacterial Nanocellulose Production and Structure Using the Low pH Resistant Strain Komagataeibacter Medellinensis

1
Facultad de Ingeniería Química, Universidad Pontificia Bolivariana, Circular 1°, No. 70-01, Medellín 050031, Colombia
2
Facultad de Ingeniería Agroindustrial, Universidad Pontificia Bolivariana, Circular 1°, No. 70-01, Medellín 050031, Colombia
3
Biobased Colloids and Materials Group (BiCMat), Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, Espoo 02150, Finland
4
Facultad de Ingeniería Textil, Universidad Pontificia Bolivariana, Circular 1°, No. 70-01, Medellín 050031, Colombia
*
Author to whom correspondence should be addressed.
Received: 9 May 2017 / Revised: 3 June 2017 / Accepted: 7 June 2017 / Published: 11 June 2017
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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. View Full-Text
Keywords: bacterial nanocellulose; carbon source; cellulose crystallization; Komagataeibacter medellinensis; static fermentation bacterial nanocellulose; carbon source; cellulose crystallization; Komagataeibacter medellinensis; static fermentation
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Molina-Ramírez, C.; Castro, M.; Osorio, M.; Torres-Taborda, M.; Gómez, B.; Zuluaga, R.; Gómez, C.; Gañán, P.; Rojas, O.J.; Castro, C. Effect of Different Carbon Sources on Bacterial Nanocellulose Production and Structure Using the Low pH Resistant Strain Komagataeibacter Medellinensis. Materials 2017, 10, 639.

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