TY - JOUR
T1 - Insights into the hierarchical structure and digestion rate of alkali-modulated starches with different amylose contents
AU - Qiao, Dongling
AU - Yu, Long
AU - Liu, Hongsheng
AU - Zou, Wei
AU - Xie, Fengwei
AU - Simon, George
AU - Petinakis, Eustathios
AU - Shen, Zhiqi
AU - Chen, Ling
N1 - Publisher Copyright:
© 2016 Elsevier Ltd.
PY - 2016/6/25
Y1 - 2016/6/25
N2 - 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.
AB - 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.
KW - Abbreviation RMS regular maize starch
KW - G50 Gelose 50 starch
UR - http://www.scopus.com/inward/record.url?scp=84961575535&partnerID=8YFLogxK
U2 - 10.1016/j.carbpol.2016.02.064
DO - 10.1016/j.carbpol.2016.02.064
M3 - Article
C2 - 27083818
AN - SCOPUS:84961575535
SN - 0144-8617
VL - 144
SP - 271
EP - 281
JO - Carbohydrate Polymers
JF - Carbohydrate Polymers
ER -