Comparison of Bacterial Cellulose Production among Different Strains and Fermented Media

<p>The effect of different carbon sources on bacterial cellulose production by Gluconacetobacter xylinus (PTCC 1734) and two newly isolated strains (from vinegar) under static culture conditions was studied. The production of bacterial cellulose was examined in modified Hestrin-Shramm medium b...

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Main Authors: Maryam Jalili Tabaii, Giti Emtiazi
Format: Article
Language:English
Published: Shahid Behehsti University of Medical Sciences 2015-12-01
Series:Applied Food Biotechnology
Subjects:
Online Access:http://journals.sbmu.ac.ir/afb/article/view/10582
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spelling doaj-2c166d5b19a74f9b8076ce8d321944782020-11-24T20:53:17ZengShahid Behehsti University of Medical SciencesApplied Food Biotechnology2345-53572423-42142015-12-013135415948Comparison of Bacterial Cellulose Production among Different Strains and Fermented MediaMaryam Jalili Tabaii0Giti Emtiazi1Department of Biology, Faculty of Science, University ofIsfahan, Isfahan, Iran.Department of Biology, Faculty of Science, University ofIsfahan, Isfahan, Iran.<p>The effect of different carbon sources on bacterial cellulose production by Gluconacetobacter xylinus (PTCC 1734) and two newly isolated strains (from vinegar) under static culture conditions was studied. The production of bacterial cellulose was examined in modified Hestrin-Shramm medium by replacing D-glucose with other carbon sources. The results showed that the yield and characteristics of bacterial cellulose were influenced by the type of carbon source. Glycerol gave the highest yield in all of the studied strains (6%, 9.7% and 3.8% for S, A2 strain and Gluconacetobacter xylinus (PTCC 1734), respectively). The maximum dry bacterial cellulose weight in the glycerol containing medium is due to A2 strain (1.9 g l-1) in comparison to Gluconacetobacter xylinus as reference strain (0.76 g l-1). Although all of the studied strains were in Gluconacetobacter family, each used different sugars for maximum production after glycerol (mannitol and fructose for two newly isolated strains and glucose for Gluconacetobacter xylinus). The maximum moisture content was observed when sucrose and food-grade sucrose were used as carbon source. Contrary to expectations, while the maximum thickness of bacterial cellulose membrane was attained when glycerol was used, bacterial cellulose from glycerol had less moisture content than the others. The oxidized cellulose showed antibacterial activities, which makes it as a good candidate for food-preservatives.</p>http://journals.sbmu.ac.ir/afb/article/view/10582Bacterial cellulose, Carbon sources, Fermentation media, Gluconacetobacter, Optimization
collection DOAJ
language English
format Article
sources DOAJ
author Maryam Jalili Tabaii
Giti Emtiazi
spellingShingle Maryam Jalili Tabaii
Giti Emtiazi
Comparison of Bacterial Cellulose Production among Different Strains and Fermented Media
Applied Food Biotechnology
Bacterial cellulose, Carbon sources, Fermentation media, Gluconacetobacter, Optimization
author_facet Maryam Jalili Tabaii
Giti Emtiazi
author_sort Maryam Jalili Tabaii
title Comparison of Bacterial Cellulose Production among Different Strains and Fermented Media
title_short Comparison of Bacterial Cellulose Production among Different Strains and Fermented Media
title_full Comparison of Bacterial Cellulose Production among Different Strains and Fermented Media
title_fullStr Comparison of Bacterial Cellulose Production among Different Strains and Fermented Media
title_full_unstemmed Comparison of Bacterial Cellulose Production among Different Strains and Fermented Media
title_sort comparison of bacterial cellulose production among different strains and fermented media
publisher Shahid Behehsti University of Medical Sciences
series Applied Food Biotechnology
issn 2345-5357
2423-4214
publishDate 2015-12-01
description <p>The effect of different carbon sources on bacterial cellulose production by Gluconacetobacter xylinus (PTCC 1734) and two newly isolated strains (from vinegar) under static culture conditions was studied. The production of bacterial cellulose was examined in modified Hestrin-Shramm medium by replacing D-glucose with other carbon sources. The results showed that the yield and characteristics of bacterial cellulose were influenced by the type of carbon source. Glycerol gave the highest yield in all of the studied strains (6%, 9.7% and 3.8% for S, A2 strain and Gluconacetobacter xylinus (PTCC 1734), respectively). The maximum dry bacterial cellulose weight in the glycerol containing medium is due to A2 strain (1.9 g l-1) in comparison to Gluconacetobacter xylinus as reference strain (0.76 g l-1). Although all of the studied strains were in Gluconacetobacter family, each used different sugars for maximum production after glycerol (mannitol and fructose for two newly isolated strains and glucose for Gluconacetobacter xylinus). The maximum moisture content was observed when sucrose and food-grade sucrose were used as carbon source. Contrary to expectations, while the maximum thickness of bacterial cellulose membrane was attained when glycerol was used, bacterial cellulose from glycerol had less moisture content than the others. The oxidized cellulose showed antibacterial activities, which makes it as a good candidate for food-preservatives.</p>
topic Bacterial cellulose, Carbon sources, Fermentation media, Gluconacetobacter, Optimization
url http://journals.sbmu.ac.ir/afb/article/view/10582
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