Effects of amylose and phosphate monoester on aggregation structures of heat-moisture treated potato starches

Zhang, Binjia, Zhao, Yue, Li, Xiaoxi, Zhang, Panfeng, Li, Lin, Xie, Fengwei and Chen, Ling (2014) Effects of amylose and phosphate monoester on aggregation structures of heat-moisture treated potato starches. Carbohydrate Polymers, 103 1: 228-233. doi:10.1016/j.carbpol.2013.12.055


Author Zhang, Binjia
Zhao, Yue
Li, Xiaoxi
Zhang, Panfeng
Li, Lin
Xie, Fengwei
Chen, Ling
Title Effects of amylose and phosphate monoester on aggregation structures of heat-moisture treated potato starches
Journal name Carbohydrate Polymers   Check publisher's open access policy
ISSN 0144-8617
1879-1344
Publication date 2014-03-15
Year available 2013
Sub-type Article (original research)
DOI 10.1016/j.carbpol.2013.12.055
Volume 103
Issue 1
Start page 228
End page 233
Total pages 6
Place of publication Kidlington, Oxford, United Kingdom
Publisher Pergamon
Collection year 2014
Language eng
Abstract For three cultivars of potato starch, heat-moisture treatment (HMT) displayed an influence on the aggregation structures at different scale levels. With HMT, the granular morphology of potato starch granules remained similarly, and an increase in the average repeat distance of semi-crystalline lamellae was observed. The crystalline structure and birefringence were also affected. Moreover, the polymorphic transformation (B → A + B) could be related to dehydration, whereas the decrease in the degree of crystallinity might be resulted from the rupture of hydrogen bonds. Interestingly, amylose could act as the backbone of the aggregation structures of potato starch to provide resistance to HMT, but phosphate monoester could promote the destruction during HMT. In addition, compared with amylose, phosphate monoester played a more significant role in changing the average repeat distance of semi-crystalline lamellae (long period) during HMT.
Keyword Aggregation structure
Amylose
Heat-moisture treatment
Phosphate monoester
Potato starch
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2014 Collection
Australian Institute for Bioengineering and Nanotechnology Publications
 
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