The use of dextran in 3D printing for dysphagia foods: Relationships between its structure and physicochemical properties
文献类型： 外文期刊
作者： Dai, Yiqiang 1 ; Liu, Yifei 2 ; Wang, Zhe 1 ; Xu, Weimin 1 ; Dong, Mingsheng 2 ; Xia, Xiudong 1 ; Wang, Daoying 1 ;
作者机构： 1.Jiangsu Acad Agr Sci, Inst Agroprod Proc, Jiangsu Key Lab Food Qual & Safety, State Key Lab Cultivat Base,Minist Sci & Technol, Nanjing 210014, Peoples R China
2.Nanjing Agr Univ, Coll Food Sci & Technol, Nanjing 210095, Peoples R China
3.Jiangsu Univ, Sch Food & Biol Engn, Zhenjiang 212013, Peoples R China
关键词： Dextran; Structure; Physicochemical properties; 3D printing whole grain and legume food; Dysphagia
期刊名称：FOOD HYDROCOLLOIDS （ 影响因子：12.4； 五年影响因子：13.3 ）
ISSN： 0268-005X
年卷期： 2025 年 160 卷
页码：
收录情况： SCI
摘要： Novel naturally sourced polysaccharides are gaining attention for their safety and improvement in food texture. This study investigated the correlations between the structural characteristics and physicochemical properties of dextran GS128 derived from Leuconostoc citreum SH12, and assessed its applicability in three-dimensional (3D) printed whole grain and legume-based (whole grain oat, chickpea and soybean) foods designed for dysphagia patients. The findings revealed that GS128 had a non-crystalline amorphous nature and high thermostability, suggesting its food processing potential. GS128 aqueous solution showed shear thinning and elastic gel behavior, and excellent thixotropic and structural recovery properties, and their effects were positive dose-dependent at the concentration of 4 similar to 10 wt%, which were determined by its nearly linear structure mainly composed of 87.74% alpha-(1 -> 6) linkages with a high molecular weight of 3.02 x 10(8) Da. Moreover, the addition of 4 similar to 10 wt% GS128 not only retained the shape of 3D printed whole grain and legume food, but also improved the swallowability by 33.26-74.60% compared with food without GS128, indicating the usage potential for dysphagia people. Overall, GS128 as a texture modifier has significant potential for application in the food industry, especially in the development of 3D-printed dysphagia diets.
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