Characterization of complexes formed between debranched starch and fatty acids having different carbon chain lengths

Recently, amylose–lipid complexes have attracted widespread attention because of their various applications. However, DBS complexed with fatty acids of different carbon chain length are rarely studied. This study aimed to probe the complexation of DBS with saturated fatty acids having different carb...

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Bibliographic Details
Published in:International journal of biological macromolecules 2021-01, Vol.167, p.595-604
Main Authors: Lu, Hao, Yang, Zhen, Yu, Mengting, Ji, Na, Dai, Lei, Dong, Xuyan, Xiong, Liu, Sun, Qingjie
Format: Article
Language:English
Subjects:
Carbohydrate Conformation
Complexes
Debranched starch
Fatty Acids - chemistry
Lipid
Microscopy, Electron, Scanning
Models, Molecular
Polymerization
Starch - chemistry
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Summary:Recently, amylose–lipid complexes have attracted widespread attention because of their various applications. However, DBS complexed with fatty acids of different carbon chain length are rarely studied. This study aimed to probe the complexation of DBS with saturated fatty acids having different carbon chain lengths (C6–C18). The results revealed that DBS was able to form V-type complexes with all the fatty acids considered. Compared to DBS, the relative crystallinity of the complexes increased 2–3 times. DBS with lauric acid and myristic acid formed three types V-type complexes (type I, type IIa, and type IIb). The complexing index followed the order of hexanoic acid > octanoic acid > capric acid > lauric acid > myristic acid > palmitic acid > stearic acid. Furthermore, lauric acid and myristic acid formed complexes with DBS more easily compared with other fatty acids. [Display omitted] •Debranched starch (DBS) could form V-type complexes with fatty acid.•The type of the complexes formed includes type I, type IIa, and type IIb.•The morphology DBSC6 complex was like hydrangeas.•CI value was negatively correlated with carbon chain length of fatty acids.
ISSN:0141-8130
1879-0003
DOI:10.1016/j.ijbiomac.2020.11.198