Volume 16, Issue 5 (2014)                   JAST 2014, 16(5): 1083-1095 | Back to browse issues page

‎ 20.1001.1.16807073.2014.16.5.16.8

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Buksa K, Ziobro R, Nowotna A, Adamczyk G, Sikora M, Zylewski M. Water Binding Capacity of Rye Flours with the Addition of Native and Modified Arabinoxylan Preparations. JAST 2014; 16 (5) :1083-1095
URL: http://jast.modares.ac.ir/article-23-8590-en.html
Water Binding Capacity of Rye Flours with the Addition of Native and Modified Arabinoxylan Preparations
K. Buksa * 1, R. Ziobro1 , A. Nowotna1 , G. Adamczyk1 , M. Sikora1 , M. Zylewski2
1- Department of Carbohydrates Technology, Faculty of Food Technology, University of Agriculture, ul. Balicka 122, 30-149 Kraków, Poland.
2- Department of Organic Chemistry, Collegium Medicum UJ, Marek Żylewski - Jagiellonian University, Kraków, Poland.
Abstract:   (6261 Views)
Despite a highly beneficial role of water soluble arabinoxylans, the information about the effect of their addition on the properties of rye dough is lacking. The aim of this study was to check the influence of their modification methods and properties on water binding capacity of rye flour and suggest some possible explanations for the action of various fractions of arabinoxylans. Three modifications of isolated arabinoxylans were carried out: enzymatic hydrolysis, cross-linking, and combination of both. The preparations used as additives differed in molecular characteristics of arabinoxylans, as well as their rheological behavior. The addition of all preparations at 1 and 2% levels to rye flour types 720 and 1,150 resulted in an increase of water absorption. The high water absorption of the two rye flour types with the same amount of arabinoxylan preparations was mainly related to structural properties of arabinoxylans, such as molecular mass and substitution ratio. Structural properties were responsible for rheological behavior of the samples, which allow prediction of the final water absorption of rye flour.
Keywords: Arabinoxylans, Cross-linking, Dough, Xylanase hydrolysis
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Article Type: Research Paper | Subject: Food Science and Technology
Received: 2013/04/10 | Accepted: 2013/11/4 | Published: 2014/09/1
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