期刊
CARBOHYDRATE POLYMERS
卷 277, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.carbpol.2021.118814
关键词
Starch; Linear dextrin; Ethylene encapsulation; Degree of polymerisation; Molecular dynamics simulation
资金
- Na-tional Natural Science Foundation of China [31771929]
- Natural Science Foundation of Guangdong Province [2019A1515012174]
- 111 Project [B17018]
- Science and Technology Project of Zhuhai City [ZH22036207200022PWC]
- Guangdong, China
This research investigated the effects of preparation method on V-type linear dextrin, finding that samples prepared by anti-solvent precipitation had a higher percentage of V-type structure and slower ethylene release rate. Therefore, a higher V-type structure content was beneficial for encapsulation of gaseous molecules.
The objective of this research was to investigate the effects of preparation method on the characteristics and ethylene loading capacity of V-type linear dextrin (LD). LD with different degrees of polymerisation were obtained from debranched starch by gradient ethanol precipitation. X-ray diffraction (XRD) patterns of samples obtained by precipitation and anti-solvent precipitation presented A +V-type crystalline structure. However, the percentage of V-type structure of samples obtained by anti-solvent precipitation was significantly higher than for samples prepared by precipitation, which was further confirmed by nuclear magnetic resonance spectroscopy (NMR), and molecular dynamics simulation supported the XRD and NMR results. The ethylene encapsulation capabilities of samples fabricated by different methods were in range of 1.15-4.68 cm(3)/g. Ethylene release from V-type LD was a physical process at different storage temperatures, and the higher percentage of V-type structure, the slower release rate. Thus, a higher V-type structure content was beneficial for encapsulation of gaseous molecules.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据