What is mayonnaise-emulsion

What is mayonnaise-emulsion

mayonnaise is a thick creamy semisolid  preparation which is used as a food preparation.

Mayonnaise is a water in oil emulsion in which yolk is act as emulsifier.Mayonnaise contains not less than 65 percent by weight of vegetable oils commonly mayonnaise is mixture of egg ,vinegar oil ans spices.

Now a days egg free mayonnaise are also available in market

Mayonnaise is a emulsion which is made up of  following ingredients:

• vegetable oils
• egg yolk
• acidifying agent lemon juice or vinegar
• mustard

Stability of mayonnaise is depend upon following factor:

• Emulsifying agent
• Volume
• Viscosity 
• method of mixing
• degree of agitation
• Temperature

Difference between Emulsion and Suspension 
Definition of Emulsion, Types of Emulsion  
Application of Emulsion 
Pharmaceutical industry and Emulsion 
HLB Scale and Emulsifying Agent  
Emulsifier or emulsifying agent and emulsion

Definition, Types of Emulsion

Definition, Types of Emulsion

An emulsion is defined as thermodynamically unstable heterogeneous system in which two or more immiscible liquids dispersed into the second continues phase which stabilize with emulsifying agent.

Emulsion Contain:

Internal phase (Dispersed Phase)

External phase (Continuous phase)

Emulsifying agent or emulsifier

Types of emulsion

Primary emulsion

Water in Oil emulsion (W/O emulsion):

W/O is emulsion in which continuous phase is oil and droplets of water dispersed in the oil phase (continuous phase)

Oil in water emulsion (O/W emulsion):

Oil in water is emulsion in which continuous phase is water and droplets of oil dispersed in the water phase.

Water in water emulsion (W/W emulsion):

Water in water emulsion is emulsion in which droplets of aqueous is dispersed in water phase. It mainly contains incompatible polymers.

Oil in Oil emulsion (O/O emulsion):

Oil in oil emulsion in which droplets of oil droplets dispersed in oil phase.

Multiple emulsions:

Multiple emulsion means emulsion in emulsion. Multiple emulsion is complex system in which emulsion is dispersed in one continuous phase. It contains two internal phases It also known as a liquid membrane system

Types of multiple emulsions:

O/w/o emulsion:

Oil in water in oil system where aqueous phase separates the internal and external phase. in oil in water in oil emulsion water droplets surrounded in the oil phase, which is true encloses one or more oil droplets

W/o/w emulsion:

In water in oil in water system, hydrophobic phase separates internal and external aqueous phase. Water in oil in water in oil emulsion system in which oil droplets surrounded by an aqueous phase which oil droplets  

We can also categorize emulsion as according to the droplets size of dispersed phase

Macro emulsion

Micro emulsion

Nano emulsion 

Difference between Notebook and Laptop

Difference between Notebook and Laptop

Sometimes people called notebook to the laptop. There is technically different between laptop and note book. Technically laptop is larger than the notebook.

Laptop is small portable computer which can be used on your lap. The size of note book is just like A4 size paper of notebook. So it is known as the notebook. While notebook is smaller than the laptop.

Notebook is also the personal computer it is lighter than the laptop. Weight of laptop is around 5-20 pound.  The weight of the notebook is around 5 to 6 pound.

Laptops have screen size of 12 inches up to 19 inches in the viewing area. Notebook have screen area of  9 inches up to around 15 inches in the viewing area.

Laptop is most widely used for business purpose while notebook is used for personal use.

Laptop has facility of internal CDs and DVDs drive. while notebook does not have facility of internal CDs and DVDs drive. It has a minimal graphics system. it has an integrated modem

Laptop can handle many program because of  large processor size. Notebook is usually not able to handle as many programs or open windows due to their smaller processor size.

RAM and hard disk capacity in laptop is higher than the note book

Laptop has a facility of fan which provide the cooling facility to the system. Notebook does not have cooling facility due to the less processor power.

Many laptops are large enough to offer a full keyboard. while notebooks has not large keyborad