AI Article Synopsis
- The study examined how natural fermentation impacts the structure and properties of wheat starch, finding that fermentation reduces the starch's molecular weight and alters its granule surface.
- Fermented starch showed increased crystallinity (39.38-42.27%) compared to native starch (37.15%), indicating a shift in its structure.
- Fermentation also resulted in lower viscosities and setback values, suggesting that it could enhance the quality of starch-based foods.
Article Abstract
In this study, the effects of natural fermentation on the multi-scale structure and physicochemical properties of wheat starch were investigated. The results showed that fermentation reduced weight-average molecular weight (M) and slightly eroded the starch granule surface. An obvious increase in relative crystallinity from X-ray diffraction was observed in all fermented starch (39.38-42.27%) when compared with native starch (37.15%). Data from small angle X-ray scattering revealed that fermentation increased the crystalline layer and decreased the amorphous region of the starch granules. The intensity of absorption related to hydrogen bonding by FT-IR (3000-3600 cm) also increased in fermented starch. The rapid viscosity analysis results showed that fermented starch had a lower peak viscosity and final viscosity, and a lower setback value than native starch. The present results reveal that fermentation is an effective method to modify wheat starch and suggest its potential to improve the quality of starch-based foods.
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| http://dx.doi.org/10.1016/j.carbpol.2019.04.061 | DOI Listing |
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