Enhancement of Biocellulose Production in Mixed Medium Culture

In this research, the results for biocellulose production by Acetobacter xylinum in mixed medium culture were reported. Biocellulose production was determined by utilizing different feedstocks of single sugars and sugar mixtures which were applied according to certain glucose to fructose ratio. Dat...

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Main Authors: Junaidi, Zakaria, Shahril, Mohamad, Siew, Kah Weng
Format: Conference or Workshop Item
Language:English
Published: 2012
Subjects:
Online Access:http://umpir.ump.edu.my/id/eprint/2862/1/ENHANCEMENT_OF_BIOCELLULOSE_PRODUCTION_IN_MIXED.pdf
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author Junaidi, Zakaria
Shahril, Mohamad
Siew, Kah Weng
author_facet Junaidi, Zakaria
Shahril, Mohamad
Siew, Kah Weng
author_sort Junaidi, Zakaria
collection UMP
description In this research, the results for biocellulose production by Acetobacter xylinum in mixed medium culture were reported. Biocellulose production was determined by utilizing different feedstocks of single sugars and sugar mixtures which were applied according to certain glucose to fructose ratio. Data for pH changes and the biocellulose production from every medium culture were thoroughly analyzed. In this experiment, it was ensured that all the samples had the initial temperature and pH of 30ºC and pH 5.5 respectively. The temperature was kept constant throughout the whole experiment while the changed pH value was taken as final pH at the end of the experiment for every sample. The highest production using sugar mixtures of 1:9 glucose to fructose ratio was 1.57g/l. The final pH values recorded in the different sugar mixtures were in the range of 4.0–5.5. The lowest final pH of 4.56 was determined in the medium that contained a single carbon source of glucose, as most of the glucose was converted into gluconic acid and lead to lowest biocellulose production of 0.69g/l. In contrast, the highest pH value of 5.3 was determined in the medium that contained a single carbon source of fructose and lead to the higher biocellulose production of 0.9g/l. Analyzing profiles for final pH and biocellulose production for the medium with higher glucose concentration showed that the glucose was preferable to be converted to gluconic acid rather than biocellulose synthesize. Besides, it was also determined that biocellulose production rate in mixed culture medium was higher than in culture medium that only consist of a single carbon source and this had proved that the experiment of enhancing biocellulose production with mixed medium culture was applicable. Results reported in this study demonstrated that the production of biocellulose can be enhanced by using carbon sources mixture with a suitable ratio.
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spelling UMPir28622015-03-03T07:58:18Z http://umpir.ump.edu.my/id/eprint/2862/ Enhancement of Biocellulose Production in Mixed Medium Culture Junaidi, Zakaria Shahril, Mohamad Siew, Kah Weng TP Chemical technology In this research, the results for biocellulose production by Acetobacter xylinum in mixed medium culture were reported. Biocellulose production was determined by utilizing different feedstocks of single sugars and sugar mixtures which were applied according to certain glucose to fructose ratio. Data for pH changes and the biocellulose production from every medium culture were thoroughly analyzed. In this experiment, it was ensured that all the samples had the initial temperature and pH of 30ºC and pH 5.5 respectively. The temperature was kept constant throughout the whole experiment while the changed pH value was taken as final pH at the end of the experiment for every sample. The highest production using sugar mixtures of 1:9 glucose to fructose ratio was 1.57g/l. The final pH values recorded in the different sugar mixtures were in the range of 4.0–5.5. The lowest final pH of 4.56 was determined in the medium that contained a single carbon source of glucose, as most of the glucose was converted into gluconic acid and lead to lowest biocellulose production of 0.69g/l. In contrast, the highest pH value of 5.3 was determined in the medium that contained a single carbon source of fructose and lead to the higher biocellulose production of 0.9g/l. Analyzing profiles for final pH and biocellulose production for the medium with higher glucose concentration showed that the glucose was preferable to be converted to gluconic acid rather than biocellulose synthesize. Besides, it was also determined that biocellulose production rate in mixed culture medium was higher than in culture medium that only consist of a single carbon source and this had proved that the experiment of enhancing biocellulose production with mixed medium culture was applicable. Results reported in this study demonstrated that the production of biocellulose can be enhanced by using carbon sources mixture with a suitable ratio. 2012 Conference or Workshop Item PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/2862/1/ENHANCEMENT_OF_BIOCELLULOSE_PRODUCTION_IN_MIXED.pdf Junaidi, Zakaria and Shahril, Mohamad and Siew, Kah Weng (2012) Enhancement of Biocellulose Production in Mixed Medium Culture. In: Malaysian International Conference on Trends in Bioprocess Engineering 2012 (MICOTRIBE 2012) , 3-5 July 2012 , Meritus Pelangi Beach Resort & Spa, Langkawi. . (Unpublished) (Unpublished)
spellingShingle TP Chemical technology
Junaidi, Zakaria
Shahril, Mohamad
Siew, Kah Weng
Enhancement of Biocellulose Production in Mixed Medium Culture
title Enhancement of Biocellulose Production in Mixed Medium Culture
title_full Enhancement of Biocellulose Production in Mixed Medium Culture
title_fullStr Enhancement of Biocellulose Production in Mixed Medium Culture
title_full_unstemmed Enhancement of Biocellulose Production in Mixed Medium Culture
title_short Enhancement of Biocellulose Production in Mixed Medium Culture
title_sort enhancement of biocellulose production in mixed medium culture
topic TP Chemical technology
url http://umpir.ump.edu.my/id/eprint/2862/1/ENHANCEMENT_OF_BIOCELLULOSE_PRODUCTION_IN_MIXED.pdf
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