Evaluation of the effect of homogenization energy input on the enclosed water volume of concentrated W/O/W emulsions by low-resolution T₂-relaxometry

详细信息    查看全文

• 作者：Lien Vermeir ; Paolo Sabatino ; Mathieu Balcaen ; Gijs Van Ranst ; Paul Van der Meeren
• 关键词：W/O/W emulsion ; Homogenization ; Yield ; Pfg-NMR ; T2
• 刊名：Food Hydrocolloids
• 出版年：2014
• 出版时间：January, 2014
• 年：2014
• 卷：34
• 期：Complete
• 页码：34-38
• 全文大小：589 K

文摘

The usefulness of low-resolution NMR for W/O/W double emulsion characterization was evaluated. Whereas pfg-NMR diffusion experiments enabled the detection of phase inversion and water droplet diameter distribution in the primary W/O emulsion, T₂ relaxation measurements allowed discriminating internal and external water when a paramagnetic agent, such as manganese dichloride was added to the W/O/W emulsion.

The study aimed to entrap a maximal amount of water in the W/O emulsion in order to obtain a concentrated W/O/W emulsion. In addition, the impact of homogenization duration and intensity on the enclosed water volume of the double emulsion was investigated. The results indicated that high-intensity process conditions drastically decreased the yield of the W/O/W emulsion.