农业机械学报2018，Vol.49Issue(4)：359-365,74,8.DOI:10.6041/j.issn.1000-1298.2018.04.042
两种大豆蛋白-磷脂酰胆碱纳米乳液粉末化特性研究
Characteristics of Soybean Protein-Phosphatidyl Choline with Nanoemulsions Powders
摘要
Abstract
Vacuum lyophilizing method was used to prepare soybean protein-phosphatidyl choline emulsification powder after the ultrasonic treatment and high pressure homogenization,and the physical and chemistry characteristics of lyophilizing powder and reconstituted emulsion were determined by scanning electron microscopy,laser particle size analyzer and infrared spectrum.It was found that the reconstituted lyophilizing powder had good solubility,and the particle size of the emulsion was the same as that of the original emulsion.Scanning electron microscopy and lyophilized powder particle size distribution showed that the nanoemulsion powder prepared by high-pressure homogenization and ultrasonic had dense and uniform structure,the surface had no cracks and hole,the surface of powder prepared by high pressure homogeneous was more smooth,the particle size distribution showed unimodal distribution,the average particle size was only 6.13 μm.The entrapment efficiency and yield of nanoemulsion lyophilized powder prepared by ultrasound and high pressure homogenization both were more than 90％,while the nanoemulsion lyophilized powder prepared by ultrasonic preparation was more conducive to the package of β-carotene and better prevention of the loss of β-carotene.The results of infrared spectroscopy experiments showed that the α-helix and β-fold structure of the protein powder prepared by high pressure homogenization were slightly lower.And compared with the stability and shelf life of soybean protein-phosphatidyl choline nanoemulsions,a significant increase was showed for the lyophilized powder under the same storage conditions.关键词
大豆蛋白/磷脂酰胆碱/纳米乳液/冷冻干燥Key words
soybean-protein/phosphatidyl choline/nanoemulsion/lyophilization分类
轻工纺织引用本文复制引用
江连洲,张潇元,刘龄,李杨,陈复生,王中江..两种大豆蛋白-磷脂酰胆碱纳米乳液粉末化特性研究[J].农业机械学报,2018,49(4):359-365,74,8.基金项目
国家自然科学基金面上项目(31671807、31571876)、山东省泰山产业领军人才工程高效生态农业创新类项目(LJNY201607)、霍英东教育基金会高等院校青年教师基金项目(20152325210002)、黑龙江省现代农业产业技术协同创新体系岗位专家项目和黄河三角洲学者岗位项目 （31671807、31571876）
