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Preparation and Characterization of Nanoparticles From Lotus Root Starches by Ultrasonic-Assisted Nanoprecipitation

文献类型： 外文期刊

作者： Zhang, Yan 1 ; Wang, Hongjuan 3 ; Mao, Yupeng 4 ; Song, Jiangfeng 1 ; Wu, Caie 1 ; Yang, Runqiang 3 ;

作者机构： 1.Nanjing Forestry Univ, Coll Light Ind & Food Engn, Nanjing 210037, Peoples R China

2.Jiangsu Acad Agr Sci, Inst Agroprod Proc, Nanjing, Peoples R China

3.Nanjing Agr Univ, Coll Food Sci & Technol, Nanjing, Peoples R China

4.Huaian Longyuan Agr Sci & Technol Co Ltd, Huaian, Peoples R China

5.Jiangsu Univ, Sch Food & Biol Engn, Zhenjiang, Peoples R China

关键词： crystal structure; lotus root starch; physiochemical properties; starch nanoparticles; ultrasonic-assisted nanoprecipitation

期刊名称：STARCH-STARKE （ 影响因子：2.7； 五年影响因子：3.0 ）

ISSN：

年卷期： 2025 年 77 卷 5 期

页码：

收录情况： SCI

摘要： Lotus root starch nanoparticles (LRSNPs) were prepared by an ultrasonic-assisted nanoprecipitation method, and their structure and physicochemical properties were characterized. The optimal preparation process for LRSNPs was predicted through single-factor experiments and response surface methodology as follows: an ultrasonic power of 500 W, an ethanol/starch solution volume ratio of 10:1, and a starch solution concentration of 3%. The particle size of LRSNPs prepared under these conditions was 215.92 nm, which was smaller than that obtained by both nanoprecipitation and enzymatic hydrolysis regeneration methods. After ultrasonic nanomaterialization, the structure of lotus root starch (LRS) was disrupted, the short-range ordering was reduced, and the crystal structure changed from B-type to V-type. Compared with corn starch nanoparticles (CSNPs) and potato starch nanoparticles (PSNPs), LRSNPs exhibited higher solubility and swelling capacity at 50-60 degrees C, and its transparency was significantly enhanced. Moreover, LRSNPs had a faster digestion rate in a simulated intestinal environment, and their rapidly digestible starch content was significantly higher than that of CSNPs and PSNPs. This study provided a theoretical basis for the further development and utilization of LRS.

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