<br>双重改性对木薯淀粉功能、微观结构和热性能的影响,Food Science & Nutrition

当前位置： X-MOL 学术 › Food Sci. Nutr. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

双重改性对木薯淀粉功能、微观结构和热性能的影响
Food Science & Nutrition ( IF 3.5 ) Pub Date : 2021-07-30 , DOI: 10.1002/fsn3.2506
Neda Javadian ₁ , Abdorreza Mohammadi Nafchi _{1,

2} , Marzieh Bolandi ₁

Affiliation

本研究的目的是研究双重改性对木薯淀粉功能、微观结构和热性能的影响。首先将木薯淀粉用 0.14 M HCl 水解 0、6、12、18 和 24 小时，然后通过添加 0%、10%、20% 和 30% (v/w) 环氧丙烷进行羟丙基化。测定了双重变性木薯淀粉的羟丙基化程度、溶解度、吸水性、流变学、热学和微观结构特征。羟丙基化不会导致木薯淀粉的淀粉颗粒大小和形状发生任何显着变化。酸水解破坏淀粉颗粒，产生尺寸更小的淀粉。双变性淀粉的摩尔取代度(DS)范围为0.118至0.270。双变性淀粉的溶解度显着高于天然淀粉 ( p < .05)。淀粉用酸水解会降低溶胀能力，而羟丙基化会增加溶胀能力。结果还表明，与其他处理相比，双变性淀粉的糊化度（To、Tp、Tc 和 ΔH）和糊化参数（峰值和最终粘度、峰值时间和糊化温度）较低。总之，本研究表明双变性木薯淀粉在浸塑和涂层方面具有潜在的应用前景。

"点击查看英文标题和摘要"

The effects of dual modification on functional, microstructural, and thermal properties of tapioca starch

The aim of this study was to investigate the effects of dual modification on the functional, microstructural, and thermal properties of tapioca starch. Tapioca starch was first hydrolyzed by 0.14 M HCl for 0, 6, 12, 18, and 24 hr and then hydroxypropylated by adding 0%, 10%, 20%, and 30% (v/w) propylene oxide. The degree of hydroxypropylation, solubility, water absorption, rheological, thermal, and microstructure characterization of dually modified tapioca starch was determined. Hydroxypropylation did not cause any considerable changes in the starch granular size and shape of tapioca starch. Acid hydrolysis disrupts the starch granules, and the starches with smaller sizes were produced. The degree of molar substitution (DS) of dual modified starches ranged from 0.118 to 0.270. The dual modified starches significantly had higher solubility than native starch (p < .05). Hydrolysis of starches with acid decreases swelling power while hydroxypropylation increases the swelling power. The results also showed lower gelatinization (To, Tp, Tc, and ΔH) and pasting parameters (the peak and final viscosity, peak time, and pasting temperature) for the dual modified starches than other treatments. In summary, this study showed that dually modified tapioca starch has potential application in dip molding and coating.

更新日期：2021-10-08

点击分享查看原文

点击收藏

公开下载

阅读更多本刊新发论文本刊介绍/投稿指南