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Effect of heat-moisture treatment on multi-scale structures and physicochemical properties of breadfruit starch

Lookup NU author(s): Professor David XieORCiD

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This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND).


Abstract

Breadfruit starch was subjected to heat-moisture treatment (HMT) at different moisture content (MC). HMT did not apparently change the starch granule morphology but decreased the molecular weight and increased the amylose content. With increased MC, HMT transformed the crystalline structure (B → A + B → A) and decreased the relative crystallinity. With ≥25% MC, the scattering peak at ca. 0.6 nm−1 disappeared, suggesting the lamellar structure was damaged. Compared with native starch, HMT-modified samples showed greater thermostability. Increased MC contributed to a higher pasting temperature, lower viscosity, and no breakdown. The pasting temperature of native and HMT samples ranged from 68.8 to 86.2 °C. HMT increased the slowly-digestible starch (SDS) and resistant starch (RS) contents. The SDS content was 13.24% with 35% MC, which was 10.25% higher than that of native starch. The increased enzyme resistance could be ascribed to the rearrangement of molecular chains and more compact granule structure.


Publication metadata

Author(s): Tan X, Li X, Chen L, Xie F, Li L, Huang J

Publication type: Article

Publication status: Published

Journal: Carbohydrate Polymers

Year: 2017

Volume: 161

Pages: 286-294

Print publication date: 01/04/2017

Online publication date: 09/01/2017

Acceptance date: 06/01/2017

Date deposited: 31/08/2023

ISSN (print): 0144-8617

ISSN (electronic): 1879-1344

Publisher: Elsevier

URL: https://doi.org/10.1016/j.carbpol.2017.01.029

DOI: 10.1016/j.carbpol.2017.01.029


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Funding

Funder referenceFunder name
2014A2FC217
2014B090904047
31271824
2014YT02S029
31130042
Key Project of the National Natural Science Foundation of China (NSFC)
Key R&D Projects of Zhongshan
National Natural Science Foundation of Chine (NSFC
R&D Projects of Guangdong Province
NSFC-Guangdong Joint Foundation Key Project
U1501214
YangFan Innovative and Entrepreneurial Research Team Project

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