返回首页| 加入收藏| 联系我们  
 
本站首页
产品中心
一定发电脑版官方网站
关于我们
成功案例
人才战略
服务支持
联系我们
   
 
 
  分析仪器类
  电位测量
  粒度测量
  Zeta电位测量
  光散射系统
  分子量测量

  泵阀类
  台湾ASSOMA磁力泵
  德国VERDER泵
  意大利赛高(SEKO)计量泵
  韩国千世(KEMPION)计量泵
  台湾上泰(SUNTEX)仪器
  长河清远成套设备
  Hydra-Cell高压隔膜泵

 
  首页 >> 服务支持 >> 技术文章 >> Factors controlling the turbidity of submicron emulsions stabilized by food biopolymers and natural surfactant
  服务支持
技术文章
 
下载中心
 
产品询价
 
产品服务

Factors controlling the turbidity of submicron emulsions stabilized by food biopolymers and natural surfactant
[ 发布时间:2016-08-30 | 浏览数:2049 ]

     

作者 Jian Zhang, Gary A. Reineccius

Department of Food Science and Nutrition, University of Minnesota, 1334 Eckles Avenue, St Paul, MN 55108, USA

 

摘要:There is a market need of emulsion-based beverages to delivery insoluble materials and yet provide desirable appearance (cloudy or transparent). Submicron emulsions (70–450 nm) stabilized by modified starch (MS), whey protein isolate (WPI), and Quillaja saponins (QS) were prepared using microfluidization. Emulsions were characterized by dynamic light scattering, cryogenic scanning electron microscopy, and turbidimeter. Factors influencing the formation and turbidity of prepared emulsions were evaluated. Results showed that mean droplet diameter (MDD) of prepared emulsions decreased with increasing emulsifier concentration, homogenization pressure (41, 96 and 152 MPa), and number of passes (1–6) through a Microfluidizer®. When MDD >100 nm, lipid phase with higher refractive index imparted higher turbidity. WPI and QS interface imparted higher turbidity than MS interface. As MDD decreased to about 100 nm, turbidity was independent of lipid phase and interface composition. Turbidity and MDD showed polynomial correlation with maximum turbidity achieved at MDD of around 500 nm. Turbidity increased linearly with dispersed phase concentration (0.1–1 mg/g) and decreased with increasing refractive index of continuous phase (1.333–1.442). This study provides valuable information for the formulation of emulsion-based beverages with specified turbidity.

 

关键词:Droplet size; Turbidity; Refractive index; Droplet interface

 


 

 
  公司介绍 | 产品中心 | 服务支持 | 联系我们 | GoogleSitemap
一定发网址.All rights reserved.一定发网址 版权所有
京ICP备05017992号-1