Milk density

Specific quality control procedure on milk density

Quality control food,2773276

Autor: Juliana yomayuza robayo

Director: Diana Paola Muñoz

Fecha

Milk density is a process that indicates the amount of mass contained in a given volume of milk. This density depends on the amount of water, fat, and non-fat solids present in the milk. It's important because it can be an indicator of its quality and purity. Measuring milk density is a crucial step in quality control of milk and dairy products

Description of Milk Density

Importance of Milk Density

Factors That Can Affect Milk Density

Fat content: The density of milk decreases as the fat content increases Protein, lactose and mineral content: The density of milk increases when the amount of protein, lactose and minerals increases. Temperature: Milk depends on temperature; As the temperature increases, the density increases. Watering and skimming: Skimming (adding water) decreases density, while skimming (fat removal) increases it

The procedure we need to measure milk density is as follows:

Sample preparation

We proceed to shake the milk to homogenize it and ensure that the sample is representative.

Filling the specimen

we analyze and then proceed to fill the specimen with fresh milk, avoiding foaming

Introduction of the lactodensity meter

Insert the lactodensity meter, turn it and let it stabilize for a few seconds

• If it is above the reference temperature of the lactodensimeter:
• Actual or corrected density = Milk density+0.0002(T°−15°C)
• o If it is below the reference temperature of the lactodensimeter:
• Actual or corrected density = Milk density−0.0002(15°C−T°)
• Where T° is the temperature read on the lactodensimeter (the temperature of the milk)

This correction is made with the following formula:

The density reading is corrected by taking into account whether the milk temperature is above or below the reference temperature of the lactodensity meter at 15°C2.

Density correction

We take the density and temperature reading which determines the stem

Density & Temperature Reading

Thanks a lot