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Effect of heat-moisture treatment on multi-scale structures and physicochemical properties of breadfruit starch
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Tan, Xiaoyan, Li, Xiaoxi, Chen, Ling, Xie, Fengwei, Li, Lin and Huang, Jidong (2017) Effect of heat-moisture treatment on multi-scale structures and physicochemical properties of breadfruit starch. Carbohydrate Polymers, 161 . pp. 286-294. doi:10.1016/j.carbpol.2017.01.029
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WRAP-effect-heat-moisture-treatment-breadfruit starch-Xie-2017.pdf - Accepted Version - Requires a PDF viewer. Available under License Creative Commons Attribution Non-commercial No Derivatives 4.0. Download (1647Kb) | Preview |
Official URL: http://dx.doi.org/10.1016/j.carbpol.2017.01.029
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.
| Item Type: | Journal Article | ||||||||||||||||||||||||
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| Subjects: | S Agriculture > SB Plant culture T Technology > TR Photography |
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| Divisions: | Faculty of Science, Engineering and Medicine > Engineering > WMG (Formerly the Warwick Manufacturing Group) | ||||||||||||||||||||||||
| Library of Congress Subject Headings (LCSH): | Breadfruit, Starch, Starch crops | ||||||||||||||||||||||||
| Journal or Publication Title: | Carbohydrate Polymers | ||||||||||||||||||||||||
| Publisher: | Pergamon Press | ||||||||||||||||||||||||
| ISSN: | 0144-8617 | ||||||||||||||||||||||||
| Official Date: | 1 April 2017 | ||||||||||||||||||||||||
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| Volume: | 161 | ||||||||||||||||||||||||
| Page Range: | pp. 286-294 | ||||||||||||||||||||||||
| DOI: | 10.1016/j.carbpol.2017.01.029 | ||||||||||||||||||||||||
| Status: | Peer Reviewed | ||||||||||||||||||||||||
| Publication Status: | Published | ||||||||||||||||||||||||
| RIOXX Funder/Project Grant: |
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