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Carbohydrate hydrolases and their role in bread production

Higgins, Jenny (2005) Carbohydrate hydrolases and their role in bread production. PhD thesis thesis, Victoria University .

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Abstract

From the completion of the baking process, loaf breads undergo changes which result in their appeal diminishing. Pentosans in wheat flour consist primarily of arabinoxylans with smaller levels of arabinogalactan often present. Commercial pentosanase preparations contain a range of xylanase and arabinase activities that are believed to act synergistically to produce the improving effects observed in breads when these preparations are added. The purpose of this study has been to investigate the significance of various carbohydrate hydrolases as anti-staling agents. Initially breads were treated with five purified endoxylanase preparations at a range of treatment levels to establish suitable levels of addition. Whilst it was found that changes at a molecular level impacted significantly on crumb and crust characteristics for some of the preparations, it appears that not all endoxylanases have beneficial effects when used alone in a basic bread formulation.

Item Type: Thesis (PhD thesis)
Uncontrolled Keywords: Bread, Preservation, Hydrolases, Enzymes, Industrial applications, bread production, baking
Subjects: FOR Classification > 0908 Food Sciences
Faculty/School/Research Centre/Department > School of Engineering and Science
Depositing User: VU Library
Date Deposited: 02 Sep 2010 06:38
Last Modified: 23 May 2013 16:45
URI: http://vuir.vu.edu.au/id/eprint/15604
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