Effect of drying treatment on the structural characterizations and physicochemical properties of starch from canistel (Lucuma nervosa A.DC)
| Autor: | Yong-gui Pan, Wei-min Zhang, Rui He, Yong-Huan Yun, Wen-ting Shang, Dong Xiang |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Materials science
Starch Solid-state 02 engineering and technology Biochemistry 03 medical and health sciences chemistry.chemical_compound Freeze-drying X-Ray Diffraction Structural Biology Spectroscopy Fourier Transform Infrared Carbohydrate Conformation Air drying Desiccation Molecular Biology 030304 developmental biology Sapotaceae 0303 health sciences Molecular Structure food and beverages General Medicine 021001 nanoscience & nanotechnology Vacuum drying chemistry Chemical engineering Starch granule 0210 nano-technology |
| Zdroj: | International Journal of Biological Macromolecules. 167:539-546 |
| ISSN: | 0141-8130 |
| DOI: | 10.1016/j.ijbiomac.2020.12.008 |
| Popis: | This work investigated the effects of hot air drying pretreatment (HAD), freeze drying pretreatment (FD) and vacuum drying pretreatment (VD) on the physicochemical properties and structural characterizations of starch isolated from canistels. X-ray diffraction displayed that the starches separated from canistel by different drying pretreatments showed a typical A-type crystal structure. The SEM image showed that cracks and debris appeared on the surface of HVD and VD particles. The molecular structure of starches obtained by different drying pretreatments was studied using Fourier infrared and solid state 13C CP/MAS NMR analysis. The results indicated that vacuum drying pretreatment could promote the formation of the double helix of starch granules, and hot air drying and freeze drying destroyed the ordered structure of starch granules. These structural changed to affect the physicochemical properties of starch granules. The study of different drying pretreatments to separate starches provided practical value for drying pretreatments. Furthermore, the current study affords information for canistel starches cultivated in China that would be convenient for commercial applications. |
| Databáze: | OpenAIRE |
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