Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, Wuxi 214122, Jiangsu Province, People's Republic of China; School of Food Science and Technology, Jiangnan University, 1800 LiHu Avenue, Wuxi 214122, Jiangsu Proevince, People's Republic of China.
Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, Wuxi 214122, Jiangsu Province, People's Republic of China; School of Food Science and Technology, Jiangnan University, 1800 LiHu Avenue, Wuxi 214122, Jiangsu Proevince, People's Republic of China; Collaborative Innovation Center for Food Safety and Quality Control, Jiangnan University, 1800 LiHu Avenue, Wuxi 214122, Jiangsu Province, People's Republic of China.
Carbohydr Polym. 2024 Apr 1;329:121770. doi: 10.1016/j.carbpol.2023.121770. Epub 2023 Dec 31.
The complete dissolution of starch without degradation are necessary prerequisites for starch fractionation to obtain amylose or amylopectin (AP). With the recent, continuous progress in finding efficient and eco-friendly starch-dissolving solutions, applying new solvents for starch fractionation is important. In this study, the effects of dimethyl sulfoxide (DMSO), NaOH, and CaCl solutions on starch structure and AP product parameters during starch fractionation were compared with respect to the starch deconstruction effect. This study proved that the CaCl solution could effectively dissolve corn starch (50 °C, solubility of 98.96 %), and promote the regeneration of starch into uniform and fine particles. Furthermore, the three solvents (DMSO, NaOH, and CaCl) changed the crystal structure of corn starch, but they were all non-derivatizing solvents. The effect of the CaCl solution on the molecular structure of corn starch was the least significant of the three solvents. Finally, the extraction rate of AP from the CaCl solution reached 69.45 %. In conclusion, this study presents a novel and effective method for AP extraction.
淀粉完全溶解而不降解是淀粉分级获得直链淀粉或支链淀粉（AP）的必要前提。随着寻找高效、环保的淀粉溶解溶液的最新持续进展，应用新的溶剂进行淀粉分级非常重要。在这项研究中，比较了 DMSO、NaOH 和 CaCl 溶液在淀粉分级过程中对淀粉结构和 AP 产品参数的影响，以了解淀粉解构效果。该研究证明 CaCl 溶液可以有效地溶解玉米淀粉（50°C，溶解度为 98.96%），并促进淀粉再生为均匀且细小的颗粒。此外，三种溶剂（DMSO、NaOH 和 CaCl）均改变了玉米淀粉的晶体结构，但它们都是非衍生化溶剂。三种溶剂中，CaCl 溶液对玉米淀粉分子结构的影响最小。最后，从 CaCl 溶液中提取 AP 的提取率达到 69.45%。总之，本研究提出了一种从玉米淀粉中提取 AP 的新颖而有效的方法。
