玉米肽包埋维生素D微胶囊的稳定性及结构鉴定  

Stability and Structural Identification of Corn Peptide Encapsulated Vitamin D Microcapsule

作　　者：王华蕾 刘睿[1,2] 张新雪 孟甘露 侯俊财 刘文颖[2] Wang Hualei;Liu Rui;Zhang Xinxue;Meng Ganlu;Hou Juncai;Liu Wenying(Key Laboratory of Dairy Science,Ministry of Education,Northeast Agricultural University,Haerbin 150000;Beijing Engineering Research Center of Protein and Functional Peptides,China National Research Institute of Food and Fermentation Industries,Beijing 100015)

机构地区：[1]东北农业大学乳品科学教育部重点实验室,哈尔滨150000 [2]中国食品发酵工业研究院有限公司,北京市蛋白功能肽工程技术研究中心,北京100015

出　　处：《中国粮油学报》2025年第1期90-96,共7页Journal of the Chinese Cereals and Oils Association

基　　金：宁夏回族自治区重点研发计划项目(2021BEG02027)。

摘　　要：以玉米肽为壁材,用维生素D油做芯材,吐温-20做乳化剂,并使用喷雾干燥法得到了玉米肽包埋维生素D微胶囊,研究考察了玉米肽微胶囊的氨基酸组成、分子质量分布、潜在的功能活性肽段,并在不同温度、pH和不同体外消化方式下观察玉米肽维生素D微胶囊的稳定性。研究发现,玉米肽微胶囊含有丰富的氨基酸,可以为人体提供所需营养,其中丙氨酸和亮氨酸含量较高。玉米肽维生素D微胶囊中主要为分子质量小于1 ku的小肽,质量分数为95.52%,这些小分子的肽更易被人体吸收。本研究共鉴定出28条肽段,都是数量为20个氨基酸以下的短肽。玉米肽微胶囊在不同温度、pH和体外消化方式下都表现出良好的稳定性。研究为玉米肽维生素D微胶囊应用于营养保健食品奠定了基础,为其在食品中的多元化开发利用提供了思路。With zein as the wall material,vitamin D oil as the core material and Tween-20 as the emulsifying agent,zein microcapsules were prepared by spray drying method.The amino acid composition,molecular weight distribution,and potential functional active peptides of zein microcapsules were investigated.The stability of zein and vitamin D microcapsules was observed under different temperatures,pH and different digestion methods in vitro.Studies have found that zein microcapsules were rich in amino acids,providing the required nutrition for the human body,and the content of alanine and leucine was high.The main content of zein vitamin D microcapsules was small peptides with molecular weight less than 1 ku,accounting for 95.52%.These small molecules were more easily absorbed by the human body.A total of 28 peptides were identified,all of which were short peptides,less than 20 amino acids.Zein microcapsules showed good stability at different temperatures,pH and in vitro digestion modes.This study lays a foundation for the application of zein vitamin D microcapsules in nutritional health food and provides ideas for its diversified development and utilization in food.

关 键 词：玉米肽 维生素D 微胶囊 结构 稳定性 

分 类 号：TS201.2[轻工技术与工程—食品科学]