Effect of mineral elements on physicochemical properties of oxidised starches and generation of free radicals

Sławomir Pietrzyk , Teresa Fortuna , Karolina Królikowska , Ewelina Rogozińska , Maria Łabanowska , Małgorzata Kurdziel

Abstract

The objective of this study was to determine the effect of enrichment of oxidised starches with mineral compounds on their physicochemical properties and capability for free radical generation. Potato and spelt wheat starches were oxidised with sodium hypochlorite and, afterwards, modified with ions of potassium, magnesium and iron. The modified starches were analysed for: content of mineral elements, colour parameters (L*a*b*), water binding capacity solubility in water at temperature of 50 and 80 °C, and susceptibility to enzymatic hydrolysis with α-amylase. In addition, thermodynamic characteristics of gelatinisation was determined by differential scanning calorimetry (DSC), and the number and character of thermally generated free radicals was assayed using electron paramagnetic resonance (EPR). Based on the results achieved, it was concluded that the quantity of incorporated minerals and changes in the assayed physicochemical parameters depended not only on the botanical type of starch but also on the type of the incorporated mineral element.
Author Sławomir Pietrzyk (FoFT / DoAaEFQ)
Sławomir Pietrzyk,,
- Department of Analysis and Evaluation Food Quality
, Teresa Fortuna (FoFT / DoAaEFQ)
Teresa Fortuna,,
- Department of Analysis and Evaluation Food Quality
, Karolina Królikowska (FoFT / DoAaEFQ)
Karolina Królikowska,,
- Department of Analysis and Evaluation Food Quality
, Ewelina Rogozińska (FoFT / DoAaEFQ)
Ewelina Rogozińska,,
- Department of Analysis and Evaluation Food Quality
, Maria Łabanowska
Maria Łabanowska,,
-
, Małgorzata Kurdziel
Małgorzata Kurdziel,,
-
Journal seriesCarbohydrate Polymers, ISSN 0144-8617, (A 40 pkt)
Issue year2013
Vol97
No2
Pages343-351
Publication size in sheets0.5
Keywords in Englishoxidised starch, mineral elements, physicochemical properties, free radicals
DOIDOI:10.1016/j.carbpol.2013.04.077
URL http://www.sciencedirect.com/science/article/pii/S0144861713004414
Internal identifierWTŻ/2013/100
Languageen angielski
Score (nominal)40
ScoreMinisterial score = 40.0, 26-07-2017, ArticleFromJournal
Ministerial score (2013-2016) = 40.0, 26-07-2017, ArticleFromJournal
Publication indicators WoS Citations = 16
Citation count*6 (2016-02-21)
Additional fields
FinansowanieThe study was supported by Polish Ministry of Science and High Education, project no. NN 312 438037.
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