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Insights into the hierarchical structure and digestion rate of alkali-modulated starches with different amylose contents
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Qiao, Dongling, Yu, Long, Liu, Hongsheng, Zou, Wei, Xie, Fengwei, Simon, George, Petinakis, Eustathios, Shen, Zhiqi and Chen, Ling (2016) Insights into the hierarchical structure and digestion rate of alkali-modulated starches with different amylose contents. Carbohydrate Polymers, 144 . pp. 271-281. doi:10.1016/j.carbpol.2016.02.064 ISSN 0144-8617.
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Official URL: http://dx.doi.org/10.1016/j.carbpol.2016.02.064
Abstract
Combined analytical techniques were used to explore the effects of alkali treatment on the multi-scale structure and digestion behavior of starches with different amylose/amylopectin ratios. Alkali treatment disrupted the amorphous matrix, and partial lamellae and crystallites, which weakened starch molecular packing and eventually enhanced the susceptibility of starch to alkali. Stronger alkali treatment (0.5% w/w) made this effect more prominent and even transformed the dual-phase digestion of starch into a triple-phase pattern. Compared with high-amylose starch, regular maize starch, which possesses some unique structure characteristics typically as pores and crystallite weak points, showed evident changes of hierarchical structure and in digestion rate. Thus, alkali treatment has been demonstrated as a simple method to modulate starch hierarchical structure and thus to realize the rational development of starch-based food products with desired digestibility.
Item Type: | Journal Article | |||||||||||||||||||||||||||
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Subjects: | Q Science > QP Physiology | |||||||||||||||||||||||||||
Divisions: | Faculty of Science, Engineering and Medicine > Engineering > Engineering | |||||||||||||||||||||||||||
Library of Congress Subject Headings (LCSH): | Starch, Digestion, Amylases | |||||||||||||||||||||||||||
Journal or Publication Title: | Carbohydrate Polymers | |||||||||||||||||||||||||||
Publisher: | Pergamon Press | |||||||||||||||||||||||||||
ISSN: | 0144-8617 | |||||||||||||||||||||||||||
Official Date: | 25 June 2016 | |||||||||||||||||||||||||||
Dates: |
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Volume: | 144 | |||||||||||||||||||||||||||
Page Range: | pp. 271-281 | |||||||||||||||||||||||||||
DOI: | 10.1016/j.carbpol.2016.02.064 | |||||||||||||||||||||||||||
Status: | Peer Reviewed | |||||||||||||||||||||||||||
Publication Status: | Published | |||||||||||||||||||||||||||
Access rights to Published version: | Restricted or Subscription Access | |||||||||||||||||||||||||||
Date of first compliant deposit: | 11 March 2019 | |||||||||||||||||||||||||||
Date of first compliant Open Access: | 11 March 2019 | |||||||||||||||||||||||||||
RIOXX Funder/Project Grant: |
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