18 Questions
What is the primary requirement for the formation of an emulsion?
Presence of an emulsifying agent
What is the primary role of an emulsifying agent in emulsion formulation?
To stabilize the dispersed phase
What affects the stability of an emulsion?
All of the above
What is acacia gum commonly used as in pharmaceutical formulations?
Emulsifying agent
What is a common method used in emulsion preparation?
Homogenization
Why is it important to store emulsions in appropriate containers?
To maintain formulation integrity
What is the primary difference between the dry gum method and the English method of emulsion formation?
The order and technique of mixing are different
Which method of emulsion formation is commonly used for preparing emulsions of volatile oils or oligeneous substances of very low viscosities?
Bottle or Forbes bottle method
What is the purpose of adding flavor oil in the dry gum method of emulsion formation?
To mask the unpleasant taste of the cod liver oil
What is the characteristic of the primary emulsion formed in the dry gum method?
Thick, white, and homogeneous
Why is the English method considered more difficult to perform successfully?
Because it is more sensitive to the viscosity of the oil
What is the role of acacia in the formation of emulsions?
It acts as an emulsifier to stabilize the emulsion
What is the process of aggregation of small globules or droplets into larger globules or droplets, resulting in complete separation of two phases?
Coalescence
What is the primary emulsion, in terms of its composition and properties?
A thick and stable emulsion with a prescribed ratio of ingredients
What is the purpose of an emulsifying agent in primary emulsion preparation?
To stabilize the emulsion and prevent separation
What is the ratio of oil to water to gum in a primary emulsion for cod liver oil?
4:2:1
What is the result of flocculation in an emulsion?
The clustering of individual dispersed droplets together
What is the process of preparing a primary emulsion using a mortar and pestle?
Extemporaneous preparation
Learn about the dry gum method and English or wet gum method for preparing emulsions in pharmaceutical formulations. Understand the steps involved in preparing cod liver oil emulsions using different techniques.
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