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