2004年1月
Preparation of fine W/O/W emulsion through membrane filtration of coarse W/O/W emulsion and disappearance of the inclusion of outer phase solution
FOOD HYDROCOLLOIDS
- ,
- ,
- ,
- ,
- ,
- ,
- 巻
- 18
- 号
- 1
- 開始ページ
- 61
- 終了ページ
- 70
- 記述言語
- 英語
- 掲載種別
- DOI
- 10.1016/S0268-005X(03)00042-0
- 出版者・発行元
- ELSEVIER SCI LTD
A water-in-oil-in-water (W/O/W) emulsion was prepared as a carrier system for the daily uptake of a bioactive compound using decaglycerol monolaurate and hexaglyceryl condensed ricinolate as hydrophilic and lipophilic surfactants, respectively. 1,3,6,8-Pyrenetetrasulfonic acid tetrasodium salt (PTSA) was used as a hydrophilic model compound of a bioactive substance. Membrane filtration of a coarse W/O/W emulsion prepared with a rotor/stator homogenizer produced a fine emulsion which had a mean oil-droplet diameter of < 1 mum. The emulsions were stable for I week at 4 degreesC. The encapsulation efficiency of PTSA was > 90%. Microscopic observations revealed that the fluorescent material in the outer-phase solution was included into the oil phase during rotor/stator homogenization. It was suggested that because the rotor/stator homogenizer was used to produce both O/W and W/O/W emulsions, some part of the outer phase solution would be included in the oil phase during the second homogenization. The fluorescence shown in the oil droplets of the coarse W/O/W emulsion was diminished after membrane emulsification. This phenomenon suggested that the included outer-phase solution was released to the outer-phase solution from the interior of the W/O/W oil droplets during the membrane emulsification. (C) 2003 Elsevier Ltd. All rights reserved.
- リンク情報
- ID情報
-
- DOI : 10.1016/S0268-005X(03)00042-0
- ISSN : 0268-005X
- Web of Science ID : WOS:000186859800007