| Autor: |
Nicola, Realdon, Francesco, Perin, Margherita, Morpurgo, Enrico, Ragazzi |
| Rok vydání: |
2002 |
| Předmět: |
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| Zdroj: |
Farmaco (Societa chimica italiana : 1989). 57(5) |
| ISSN: |
0014-827X |
| Popis: |
Two series of O/W creams having the same general formulation were prepared in three different mechanical conditions (F with an hand blender; S with a turbomixer; T with a vacuum turbo emulsor) using two types of surfactants, polyoxyethylene-cetostearyl alcohols and polyglyceryl-3-methylglucose-distearate. By means of microscopic image analysis it was possible to point out the dispersion grade of the oil internal phase increasing with the energy applied under the conditions of manufacture (FST). The level of dispersion influenced significantly on the rheological characteristics of the creams. With polyoxyethylene-cetostearyl alcohols, the viscosity of creams increased as the energy applied in manufacturing increased, with polyglyceryl-3-methylglucose-distearate on the contrary decreased. Moreover, indifferently to the manufacturing conditions, even in the same concentration of surfactant, the creams obtained with the last produced a much greater viscosity. At a parity of manufacturing conditions the differences between the batches of productions were not significant. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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