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Bibliographic description

punktacja MNiSW [2012 A]: 30 

title:	The influence of Cu(II) ions on physicochemical properties of potato starch oxidised by hydrogen peroxide
author:	Pietrzyk Sławomir, Juszczak Lesław, Fortuna Teresa, Łabanowska Maria , Bidzińska Ewa , Błoniarczyk Katarzyna
Journal title:	Starch = Stärke
volume:	64
issue:	4
date of publication:	2012
pages:	272-280
ISSN:	0038-9056
eISSN:	1521-379X
DOI:	10.1002/star.201100090
language:	English
Journal language:	English
abstract in english:	The study investigates the influence of Cu(II) ions used as a catalyst on the effectiveness of potato starch oxidation by hydrogen peroxide, and compares the physicochemical properties of the modified starches. The starch was oxidised by H 2 O 2 alone and with the addition of Cu(II) ions at three concentrations: 0.1, 0.2 or 0.3 g per 100 g d.m. of starch. The oxidised starches were examined for the content of carboxyl groups, carbonyl groups, amylose and copper, and for water-binding capacity and water solubility at temperatures of 60 and 80 8 C. Colour parameters ( L a b ), susceptibility to retrogradation, thermodynamic characteristics of pasting, intrinsic viscosity and pasting characteristic by RVA were also determined. The results indicate that the concentration of Cu(II) ions added as a catalyst has an effect on both the effectiveness of the oxidation process and the physicochemical properties of starch.
keywords in english:	catalysts, oxidation, hydrogen peroxide, starch
departmental parameterization:	30
affiliation:	Wydział Chemii : Zakład Chemii Nieorganicznej
type:	journal article
subtype:	academic paper

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