Structural disorganization of cereal, tuber and bean starches in aqueous ionic liquid at room temperature: Role of starch granule surface structure.

@article{Zan2021StructuralDO,
  title={Structural disorganization of cereal, tuber and bean starches in aqueous ionic liquid at room temperature: Role of starch granule surface structure.},
  author={Ke Zan and Jinwei Wang and Fei Ren and Jinglin Yu and Shuo Wang and Fengwei Xie and Shujun Wang},
  journal={Carbohydrate polymers},
  year={2021},
  volume={258},
  pages={
          117677
        }
}
The structural disorganization of different starches in a 1-ethyl-3-methylimidazolium acetate ([Emim][OAc])/water mixture (1:6 mol./mol.) at room temperature (25 °C) was studied. For normal cereal starches, which have pinholes randomly dispersed on the granule surface or only in the outermost annular region (wheat starch), the aqueous ionic liquid (IL) completely destroyed the granule structure within 1-1.5 h. Pea starch (PeS) granules with cracks were destroyed by the aqueous IL within 6 h… Expand

References

SHOWING 1-10 OF 48 REFERENCES
Toward a Better Understanding of Different Dissolution Behavior of Starches in Aqueous Ionic Liquids at Room Temperature
TLDR
The results showed that the dissolution behavior of starches was affected by both starch sources and properties of [Emim][OAc]:water mixtures, which may provide guidance for the development of green technology for processing of biopolymers with low energy consumption. Expand
Dissolution and depolymerization of barley starch in selected ionic liquids.
TLDR
For the slow depolymerization of starch these ILs can be considered as suitable solvents for starch modifications where its depolymization should be avoided. Expand
Chapter 5 – Structural Features of Starch Granules I
Publisher Summary The amylose and amylopectin molecules, the granule structure, and the natures and amounts of the lipid and protein molecules present in granules vary with the botanical source ofExpand
New insights into gelatinization mechanisms of cereal endosperm starches
TLDR
The mechanism of structural disassembly of rice, maize and wheat starch granules during thermal transitions in which a Rapid Visco Analyzer was used to pre-heat the starches to certain transition points in the differential scanning calorimetry (DSC) heating profiles is revealed. Expand
Dissolution of unmodified waxy starch in ionic liquid and solution rheological properties.
TLDR
It was suggested that starch conformation in EMIMAc is similar to the one in water (compact ellipsoid) and the activation energy was calculated for starch-EMIMAc solutions and demonstrated to obey power-law concentration dependence. Expand
Dissolution of Starch with Aqueous Ionic Liquid under Ambient Conditions
With increased awareness of global sustainability, there has been growing interest in the preparation of materials from natural, eco-friendly polymers (i.e., biopolymers). Nonetheless, despite theirExpand
The effect of acid hydrolysis on morphological and crystalline properties of Rhizoma Dioscorea starch
Abstract Starch isolated from Rhizoma Dioscorea (Jichengerhao-JCEH) was subjected to acid hydrolysis for 2, 4, 8, 16 and 32days, respectively. The acid-thinned starch was evaluated for starch yield,Expand
Granule structural changes in native Chinese Yam (Dioscorea opposita Thunb var. Anguo) starch during acid hydrolysis
Starch extracted from Chinese Yam (Dioscorea opposita Thunb var. Angao) was treated with 2.2 mol/L hydrochloric acid for different lengths of time, (2, 4, 8, 16, and 32 days). The recovery yield,Expand
Zinc chloride aqueous solution as a solvent for starch.
TLDR
A ZnCl2 aqueous solution is a good non-derivatizing solvent for starch at 50 °C, and can completely dissolve starch granules; the possible formation of a "zinc-starch complex" might account for the dissolution; and the degradation of starch could not contribute to full dissolution. Expand
Structural changes in corn starches during alkaline dissolution by vortexing
Abstract Corn starches of different amylose contents (waxy, normal, and high amylose) were dissolved in a strong alkaline solution (1 M NaOH) by vigorous vortexing at room temperature, and analyzedExpand
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