Journal
FOOD CHEMISTRY
Volume 172, Issue -, Pages 433-440Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.foodchem.2014.09.085
Keywords
Rice starch; Physicochemical properties; Apparent amylose content; Thermal property; Retrogradation
Funding
- Natural Science Foundation of China [31101225]
- Science Technology Department of Zhejiang Province [2010R50033]
- Zijin plan for distinguished young faculty
- Open Project Program of Process of Starch and Vegetable Protein Engineering Research Center of Ministry of Education
- Natural Science Foundation of Zhejiang Province [LZ13C130001]
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The physicochemical properties of starches isolated from 14 rice cultivars produced in China were investigated. These rice starches showed a non-random combination of AAC and GT. Rice starches showed a typical A-type diffraction pattern with the degree of crystallinity ranging from 32.3% (a high AAC rice) to 45.5% (a waxy rice). AAC was significantly correlated with the pasting, thermal and textural properties. The positive correlations were found with PV, HPV, CPV, SB and HD (p < 0.05), while the negative corrections were found with SP, ADH, COH, T-o, T-p, T-c and Lambda H (p < 0.05). However, AAC had no correlations with BD, P-Time and percentage of retrogradation (R%). The degree of crystallinity and GT had a positive correlation with the retrogradation properties. It could be concluded that although AAC was the major factor affecting the physicochemical properties of rice starch, the retrogradation property of rice starch was mainly determined by the degree of crystallinity and GT. (C) 2014 Elsevier Ltd. All rights reserved.
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