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Titre du document / Document title

The viscosity characteristics of the O/W emulsions

Auteur(s) / Author(s)

ASANO Y. (1) ; SOTOYAMA K. (1) ;

Affiliation(s) du ou des auteurs / Author(s) Affiliation(s)

(1) Food Research and Development Laboratory, Morinaga Milk Industry Co., Ltd. 1-83, 5-chome, Higashihara, Zama-shi, Kanagawa 228-8583, JAPON

Résumé / Abstract

The viscosity of O/W emulsions with each various droplet diameter was studied. Monodispersed emulsions with uniform dispersed droplets was prepared using a membrane emulsification system. The hydrophilic microporous glass membranes with the average pore diameter of 1.1, 2.9, 4.5, and 5.7 μm were used to prepare O/W emulsions. Each emulsification operation was continued until the oil phase concentration of 10% (v/v). The droplet size varied depending on the average pore size and the average droplet diameter was about five times greater than the average pore diameter. In the present study, to prevent the variance of the viscosity from the droplet aggregates, the emulsion viscosity was exactly measured after stirring the emulsions before the dispersed droplets would float up. The correlation was found in the relationship between the average droplet diameter, or the total surface area of the droplets and the emulsion viscosity. As the dispersed droplet size decreased, the total surface area of the droplets increased. So the emulsion viscosity and the relative viscosity increased. Few studies on the viscosity of O/W emulsions with the droplet size over 5 μm and the oil phase under 10% (v/v) had been reported. In the present study the correlation between the droplet size and the emulsion viscosity was statistically found on the O/W emulsions with the droplet size over 5.0 μm at the oil phase concentration of 10% (v/v). And these data of the relative viscosity did not fit with the data calculated by a Mooney's equation including the factor of the droplet size.

Revue / Journal Title

Nippon Shokuhin Kagaku Kogaku Kaishi    ISSN  1341-027X 

Source / Source

1998, vol. 45, no7, pp. 435-439 (12 ref.)

Langue / Language

Japonais

Editeur / Publisher

Nippon Shokuhin Kagaku Kogakukai, Tsukuba, JAPON  (1995) (Revue)

Mots-clés anglais / English Keywords

Oil water emulsion

;

Viscosity

;

Mots-clés français / French Keywords

Emulsion huile eau

;

Viscosité

;

Mots-clés espagnols / Spanish Keywords

Emulsión aceite agua

;

Viscosidad

;

Localisation / Location

INIST-CNRS, Cote INIST : 21524, 35400007094536.0070

Nº notice refdoc (ud4) : 2374908



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