首页    期刊浏览 2024年09月20日 星期五
登录注册

文章基本信息

  • 标题:Use of the spray chilling method to deliver hydrophobic components: physical characterization of microparticles
  • 本地全文:下载
  • 作者:Alvim, Izabela Dutra ; Souza, Fabrizia da Silva de ; Koury, Isabela Paes
  • 期刊名称:Food Science and Technology (Campinas)
  • 印刷版ISSN:0101-2061
  • 电子版ISSN:1678-457X
  • 出版年度:2013
  • 卷号:33
  • 页码:34-39
  • DOI:10.1590/S0101-20612013000500006
  • 语种:English
  • 出版社:Sociedade Brasileira de Ciência e Tecnologia de Alimentos
  • 摘要:

    Food industry has been developing products to meet the demands of increasing number of consumers who are concerned with their health and who seek food products that satisfy their needs. Therefore, the development of processed foods that contain functional components has become important for this industry. Microencapsulation can be used to reduce the effects of processing on functional components and preserve their bioactivity. The present study investigated the production of lipid microparticles containing phytosterols by spray chilling. The matrices comprised mixtures of stearic acid and hydrogenated vegetable fat, and the ratio of the matrix components to phytosterols was defined by an experimental design using the mean diameters of the microparticles as the response variable. The melting point of the matrices ranged from 44.5 and 53.4 ºC. The process yield was melting point dependent; the particles that exhibited lower melting point had greater losses than those with higher melting point. The microparticles' mean diameters ranged from 13.8 and 32.2 µm and were influenced by the amount of phytosterols and stearic acid. The microparticles exhibited spherical shape and typical polydispersity of atomized products. From a technological and practical (handling, yield, and agglomeration) points of view, lipid microparticles with higher melting point proved promising as phytosterol carriers.

  • 关键词:micropartículas lipídicas sólidas;fitosteróis;liberação controlada
  • 其他关键词:solid lipid microparticles;phytosterols;controlled release
国家哲学社会科学文献中心版权所有