Our objective was to investigate the correlation between processing conditions and structural properties of lotus seed starch-lecithin complexes by dynamic high-pressure homogenization and explore the formation mechanism. The complexes formed with 5% lecithin at 90 MPa had the highest complex index among samples, thus protecting the integrity of the particles. The complexes inhibited the degradation of amylopectin and retrogradation of amylose, and displayed different V-, V- and A-type crystalline patterns. Additionally, the double helix structure was enhanced with increasing pressure, and the addition of lecithin contributed to the formation of single-helix amylose-lecithin complexes. These complexes prevented the single helix structure of starch to further form double helix structures, as demonstrated by visual correlation analysis. Moreover, a formation mechanism was established, and lotus seed starch-lecithin complexes with V-type crystalline were formed under appropriate conditions, but a homogenization pressure either too low or too high was not conducive to complex formation.
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| http://dx.doi.org/10.1016/j.foodchem.2020.126245 | DOI Listing |
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