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Studies on the application of alginate capsules to control pH of lactic acid fermentation

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Bibliographic Details
Main Author: Chu, Sue Yin
Other Authors: Lee Boon Beng
Format: Learning Object
Language:English
Published: Universiti Malaysia Perlis (UniMAP) 2013
Subjects:
Alginate capsules
Lactic acid bacteria (LAB)
Calcium carbonate (CaCO3)
Online Access:http://dspace.unimap.edu.my/xmlui/handle/123456789/27735
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spelling my.unimap-277352013-08-27T08:39:44Z Studies on the application of alginate capsules to control pH of lactic acid fermentation Chu, Sue Yin Lee Boon Beng Alginate capsules Lactic acid bacteria (LAB) Calcium carbonate (CaCO3) Access is limited to UniMAP community. A novel approach has been developed to produce alginate capsules composed of calcium carbonate (CaCO3) using extrusion method to control pH in lactic acid bacteria (LAB) fermentation. In this method, mixture of CaCO3 (6% - 40% (w/v)) together with 1.5% (w/v) Calcium Chloride (CaCl2) and 1.5% (w/v) Carboxylmethyl Cellulose (CMC) were extruded through needles of different sizes (0.8mm, 1.2mm, 2.3mm). The capsules formed were allowed to drip into gelling bath containing 1.5% (w/v) Sodium alginate and 0.15% (v/v) Tween 80 for capsules formation. For variables such as: the effects of CaCO3 loading, needle size, gelation time for membrane formation, and suitable ratio of capsules to the fermentation broth were investigated. The result indicated that capsules with 40% (w/v) CaCO3 diameter of 4.50mm and thickness of 0.81mm in capsules to fermentation broth ratio of 1: 3 ratio were capable to control the pH in LAB fermentation to pH 5.50 compare to the control medium (pH 3.86). Although direct adding of 3% (w/v) in medium showed slightly better control (pH 5.83) compare to using capsules, the purification process of the medium was complex. Furthermore, the differences were merely 4.8%. Therefore, encapsulations of CaCO3 in capsules are preferable. In conclusion, this study showed a new method for pH control application using liquid core capsule technology. 2013-08-27T08:39:44Z 2013-08-27T08:39:44Z 2012-06 Learning Object http://hdl.handle.net/123456789/27735 en Universiti Malaysia Perlis (UniMAP) School of Bioprocess Engineering
institution Universiti Malaysia Perlis
building UniMAP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Perlis
content_source UniMAP Library Digital Repository
url_provider http://dspace.unimap.edu.my/
language English
topic Alginate capsules
Lactic acid bacteria (LAB)
Calcium carbonate (CaCO3)
spellingShingle Alginate capsules
Lactic acid bacteria (LAB)
Calcium carbonate (CaCO3)
Chu, Sue Yin
Studies on the application of alginate capsules to control pH of lactic acid fermentation
description Access is limited to UniMAP community.
author2 Lee Boon Beng
author_facet Lee Boon Beng
Chu, Sue Yin
format Learning Object
author Chu, Sue Yin
author_sort Chu, Sue Yin
title Studies on the application of alginate capsules to control pH of lactic acid fermentation
title_short Studies on the application of alginate capsules to control pH of lactic acid fermentation
title_full Studies on the application of alginate capsules to control pH of lactic acid fermentation
title_fullStr Studies on the application of alginate capsules to control pH of lactic acid fermentation
title_full_unstemmed Studies on the application of alginate capsules to control pH of lactic acid fermentation
title_sort studies on the application of alginate capsules to control ph of lactic acid fermentation
publisher Universiti Malaysia Perlis (UniMAP)
publishDate 2013
url http://dspace.unimap.edu.my/xmlui/handle/123456789/27735
_version_ 1643795391221596160
score 13.214268

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