Development of fed-batch strategy to produce bacteria cellulose

Bacteria Cellulose (BC) is a type of biopolymer widely used in areas such as biomedicine and paper manufacturing industries. The batch fermentation mode of BC is less cost-effective as the yield is low. This study aims to determine the best fed-batch cultivation strategy to produce BC of high yield...

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Main Authors: Chua, Gek Kee, Soo, Yang Kee
Format: Article
Language:English
Published: Akademi Sains Malaysia 2023
Subjects:
Online Access:http://umpir.ump.edu.my/id/eprint/42806/1/Development%20of%20fed-batch%20strategy%20to%20produce%20bacteria%20cellulose.pdf
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author Chua, Gek Kee
Soo, Yang Kee
author_facet Chua, Gek Kee
Soo, Yang Kee
author_sort Chua, Gek Kee
collection UMP
description Bacteria Cellulose (BC) is a type of biopolymer widely used in areas such as biomedicine and paper manufacturing industries. The batch fermentation mode of BC is less cost-effective as the yield is low. This study aims to determine the best fed-batch cultivation strategy to produce BC of high yield and quality. First, batch fermentation mode was carried out to determine the glucose consumption profile of Gluconacetobacter xylinus using Yeast Extract Glucose Chloramphenicol Medium (YGC). By using the information, the fed-batch strategies with feeding frequencies of 1 time and 3 times per 14-day total fermentation period and varied feed composition (YGC medium and pure glucose solution) were set up. The yield, water holding capacity, morphology, and strength of BC were monitored. It is found that BC produced from fed-batch modes has a higher yield (3.75 g/L for low feed frequency and 4.79 g/L for high feed frequency) compared to batch mode (2.24 g/L). The BC produced with pure glucose solution has the highest water holding capacity (87.34 g water/g sample) among the different modes. The FE-SEM micrographs showed that BC produced in the high feeding frequency with YGC medium fed-batch mode has the highest microfibril density and, thus, the best mechanical strength from this mode. To conclude, the fed-batch mode with higher feeding frequency (3 days intervals for a total of 14 days) using YGC medium has the best BC yield and quality.
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spelling UMPir428062025-01-07T04:37:10Z http://umpir.ump.edu.my/id/eprint/42806/ Development of fed-batch strategy to produce bacteria cellulose Chua, Gek Kee Soo, Yang Kee QD Chemistry T Technology (General) TA Engineering (General). Civil engineering (General) TP Chemical technology Bacteria Cellulose (BC) is a type of biopolymer widely used in areas such as biomedicine and paper manufacturing industries. The batch fermentation mode of BC is less cost-effective as the yield is low. This study aims to determine the best fed-batch cultivation strategy to produce BC of high yield and quality. First, batch fermentation mode was carried out to determine the glucose consumption profile of Gluconacetobacter xylinus using Yeast Extract Glucose Chloramphenicol Medium (YGC). By using the information, the fed-batch strategies with feeding frequencies of 1 time and 3 times per 14-day total fermentation period and varied feed composition (YGC medium and pure glucose solution) were set up. The yield, water holding capacity, morphology, and strength of BC were monitored. It is found that BC produced from fed-batch modes has a higher yield (3.75 g/L for low feed frequency and 4.79 g/L for high feed frequency) compared to batch mode (2.24 g/L). The BC produced with pure glucose solution has the highest water holding capacity (87.34 g water/g sample) among the different modes. The FE-SEM micrographs showed that BC produced in the high feeding frequency with YGC medium fed-batch mode has the highest microfibril density and, thus, the best mechanical strength from this mode. To conclude, the fed-batch mode with higher feeding frequency (3 days intervals for a total of 14 days) using YGC medium has the best BC yield and quality. Akademi Sains Malaysia 2023 Article PeerReviewed pdf en cc_by_nc_4 http://umpir.ump.edu.my/id/eprint/42806/1/Development%20of%20fed-batch%20strategy%20to%20produce%20bacteria%20cellulose.pdf Chua, Gek Kee and Soo, Yang Kee (2023) Development of fed-batch strategy to produce bacteria cellulose. ASM Science Journal, 18. pp. 1-14. ISSN 1823-6782. (Published) https://doi.org/10.32802/ASMSCJ.2023.1473 https://doi.org/10.32802/ASMSCJ.2023.1473
spellingShingle QD Chemistry
T Technology (General)
TA Engineering (General). Civil engineering (General)
TP Chemical technology
Chua, Gek Kee
Soo, Yang Kee
Development of fed-batch strategy to produce bacteria cellulose
title Development of fed-batch strategy to produce bacteria cellulose
title_full Development of fed-batch strategy to produce bacteria cellulose
title_fullStr Development of fed-batch strategy to produce bacteria cellulose
title_full_unstemmed Development of fed-batch strategy to produce bacteria cellulose
title_short Development of fed-batch strategy to produce bacteria cellulose
title_sort development of fed batch strategy to produce bacteria cellulose
topic QD Chemistry
T Technology (General)
TA Engineering (General). Civil engineering (General)
TP Chemical technology
url http://umpir.ump.edu.my/id/eprint/42806/1/Development%20of%20fed-batch%20strategy%20to%20produce%20bacteria%20cellulose.pdf
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AT sooyangkee developmentoffedbatchstrategytoproducebacteriacellulose