Effect of solution on starch structure: New separation approach of amylopectin fraction from gelatinized native corn starch

Xinxin Lv; Yan Hong; Zhengbiao Gu; Li Cheng; Zhaofeng Li; Caiming Li; Xiaofeng Ban

doi:10.1016/j.carbpol.2023.121770

Effect of solution on starch structure: New separation approach of amylopectin fraction from gelatinized native corn starch

Carbohydr Polym. 2024 Apr 1:329:121770. doi: 10.1016/j.carbpol.2023.121770. Epub 2023 Dec 31.

Authors

Xinxin Lv¹, Yan Hong², Zhengbiao Gu³, Li Cheng³, Zhaofeng Li³, Caiming Li³, Xiaofeng Ban³

Affiliations

¹ 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.
² 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. Electronic address: hongyan@jiangnan.edu.cn.
³ 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.

PMID: 38286545
DOI: 10.1016/j.carbpol.2023.121770

Abstract

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 CaCl₂ 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 CaCl₂ 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 CaCl₂) changed the crystal structure of corn starch, but they were all non-derivatizing solvents. The effect of the CaCl₂ solution on the molecular structure of corn starch was the least significant of the three solvents. Finally, the extraction rate of AP from the CaCl₂ solution reached 69.45 %. In conclusion, this study presents a novel and effective method for AP extraction.

Keywords: Alkaline CaCl(2) solution; Amylopectin; Corn starch; Extraction yield; Regeneration; Structural disorganization.

MeSH terms

Amylopectin* / chemistry
Amylose / chemistry
Calcium Chloride
Dimethyl Sulfoxide / chemistry
Sodium Hydroxide
Solvents
Starch* / chemistry
Zea mays / chemistry

Substances

Starch
Amylopectin
Dimethyl Sulfoxide
Calcium Chloride
Sodium Hydroxide
Amylose
Solvents