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Preparation of 1,3-Diglyceride Microcapsules with Low Glycemic Index

文献类型： 外文期刊

作者： Xu, Rui 1 ; Qian, Fenghua 1 ; Zong, Aizheng 1 ; Xu, Zhixiang 3 ; Du, Fangling 1 ; Jia, Min 1 ; Xu, Tongcheng 1 ;

作者机构： 1.Shandong Acad Agr Sci, Key Lab Novel Food Resources Proc, Key Lab Agroprod Proc Technol Shandong Prov, Minist Agr & Rural Affairs,Inst Food & Nutr Sci &, Jinan 250100, Peoples R China

2.Shandong Normal Univ, Coll Life Sci, Jinan, Peoples R China

3.Shandong Agr Univ, Coll Food Sci & Engn, Tai An, Peoples R China

关键词： 1,3-diglyceride; low glycemic index; microcapsule; spray drying

期刊名称：STARCH-STARKE （ 影响因子：2.3； 五年影响因子：2.6 ）

ISSN： 0038-9056

年卷期： 2024 年

页码：

收录情况： SCI

摘要： A large number of animal and clinical experiments show that 1,3-diglyceride (1,3-DAG) can significantly ameliorate obesity by improving blood lipid and glucose metabolism. After microencapsulation, it cannot only be used to prepare full-nutrient food that meets the nutritional requirements of specific patients, but also improve the storage stability of oils. In this study, 1,3-DAG microcapsules are prepared by using high-amylose corn starch, resistant dextrin, and sodium caseinate as composite wall materials, and 1,3-DAG with a purity of 80% as core material.Firstly, the water phase and oil phase are mixed evenly, and then the uniform emulsion is prepared by two steps of high-speed shearing and high-pressure homogenization. The prepared emulsion is desiccated by a spray dryer to prepare microcapsules. Taking the encapsulation rate as the judging criteria, five gradients of core and wall material are designed to obtain the optimal formula.The results show that when the amount of core material is 28% and the wall material is 70%, the encapsulation rate of 99.51% is the highest. The prepared 1,3-DAG microcapsules have water content of 1.9% and solubility of 98.05%, the average particle size is 2.921 mu m. The particles are uniform and stable, with fine color and texture, and a high oil content. This research used high-amylose corn starch and resistant dextrina as wall material, making the microcapsules are low GI product that suit for diabetic patients. They used 1,3-diglyceride as core material, so that the prepared microcapsules are friendly to obese people and other patients with metabolic diseases. image

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