Effect of homogenization-pressure-assisted enzymatic hydrolysis on the structural and physicochemical properties of lotus-seed starch nanoparticles.

International Journal of Biological Macromolecules
Bailong WangZebin Guo

Abstract

In previous studies, we successfully prepared lotus-seed starch nanoparticles (LS-SNPs) using enzymatic methods. To further improve their performance, we studied the structural, physical and chemical properties of LS-SNPs prepared by high-pressure homogenization (HPH)-assisted enzymatic hydrolysis (EH). HPH treatments at different pressures and frequencies have a significant effect on the particle size and molecular weight of LS-SNPs. Structural analyses showed that LS-SNP and H-LS-SNP both comprised B-type starch crystals. As the homogenization pressure and frequency were increased, the relative crystallinity of H-LS-SNP first increased and then decreased, indicating that HPH treatment affected the double-helix structure of LS-SNPs. The results also show that moderate HPH treatment was beneficial for enzymatic hydrolysis, but when the HPH treatment was further increased, it destroyed the ordered structure of LS-SNPs. Our research showed that H-LS-SNPs with the smallest particle size and the highest crystallinity were obtained under pressure of 150 MPa, a homogenization frequency of five times the original, and a material-to-liquid ratio of 3%. The results indicate that HHP-assisted EH is a suitable method for preparing SNPs. T...Continue Reading

References

Aug 12, 2009·Journal of Colloid and Interface Science·Dagang LiuPeter R Chang
Feb 13, 2013·Carbohydrate Polymers·Sihem Bel HaajSami Boufi
Jul 2, 2016·International Journal of Biological Macromolecules·Jiang ZhouLili Ren
Dec 7, 2019·International Journal of Biological Macromolecules·Lía Ethel Velásquez-CastilloIzabel Cristina Freitas Moraes
Apr 28, 2020·International Journal of Biological Macromolecules·Xiong LinZebin Guo
Jun 12, 2020·International Journal of Biological Macromolecules·Hongyan LiBaoguo Sun
Jun 14, 2020·International Journal of Biological Macromolecules·Qing LiuQingjie Sun

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