Culture medium pH influence on Gluconacetobacter physiology: Cellulose production rate and yield enhancement in presence of multiple carbon sources
| Autor: | Nathalie Bassil, Roula Flouty, Mario El Tahchi, Ali Chokr, Gisèle Boiteux, Antoine G. El Samrani, Fatima Yassine |
|---|---|
| Přispěvatelé: | Ingénierie des Matériaux Polymères (IMP), Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université Jean Monnet [Saint-Étienne] (UJM)-Institut National des Sciences Appliquées de Lyon (INSA Lyon), Institut National des Sciences Appliquées (INSA)-Université de Lyon-Institut National des Sciences Appliquées (INSA)-Université de Lyon-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon, LABORATOIRE DE PHYSIQUE APPLIQUEE, Groupe des Biomatériaux et des Matériaux Intelligents (LPA-GBMI), UNIVERSITE LIBANAISE Faculté de Sciences II |
| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
0106 biological sciences
0301 basic medicine Polymers and Plastics chemistry.chemical_element Cellulosic biofilm Acetic acid 01 natural sciences Industrial Microbiology 03 medical and health sciences chemistry.chemical_compound 010608 biotechnology Materials Chemistry Food science Cellulose Conversion rate biology pH Organic Chemistry [CHIM.MATE]Chemical Sciences/Material chemistry Hydrogen-Ion Concentration Industrial microbiology biology.organism_classification Carbon Culture Media Gluconacetobacter 030104 developmental biology [CHIM.POLY]Chemical Sciences/Polymers chemistry Chemical engineering Bacterial cellulose Yield (chemistry) Carbon source Citric acid |
| Zdroj: | Carbohydrate Polymers Carbohydrate Polymers, Elsevier, 2016, 146, pp.282-291. ⟨10.1016/j.carbpol.2016.02.003⟩ |
| ISSN: | 0144-8617 |
| DOI: | 10.1016/j.carbpol.2016.02.003⟩ |
| Popis: | International audience; Gluconacetobacter genera are valued for bacterial cellulose (BC) and acetic acid production. BC is produced at optimal yields in classical microbiological media that are expensive for a large scale of production. In addition, BC usage for industrial purposes is limited due to low conversion rate into cellulose and to long incubation duration.In this paper, Gluconacetobacter isolated from apple vinegar was kinetically studied to evaluate cellulose production in presence of different carbon sources. Acetic and citric acid effect on Gluconacetobacter metabolism is clarified. It was shown that Gluconacetobacter uses glucose as a primary carbon source for cells growth and products formation. Acetic acid employment as a co-carbon source in Hestrin Schramm medium showed an increase of 17% in BC yield with a moderate decrease in the crystallite size of the resulting polymer. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect