Specific gravity is the ratio of density of any substance to the density of standard substance (water) at 4 o C. Specific gravity of normal milk is 1.028 to 1.032 . Specific gravity of water is one. Hence, addition of water to milk tends to decrease the specific gravity of milk.
What is the specific gravity of fat?
The specific gravity of fat is 0.93 , solids-non-fat, 1.6 and water 1.0 kg/litre.
How do you increase the gravity of milk?
- Addition of separated milk.
- Removal of fat.
- Reduction of temperature.
What is the density of normal milk?
The density of raw milk depends on its composition and temperature and can usually – literature data vary slightly – be found in the range of 1.026 g/cm3 – 1.034 g/cm3 at 20°C. Since milk is a multi-component system it is not possible to determine the concentration of one component only by density measurement.
What is specific gravity of cream?
| Food name Specific gravity | Cream, regular, thickened or rich 1.01 | Cream, sour 1.01 | Cream, sour, light or extra light 1.02 | Cream, whipped 0.51 |
|---|
Which protein is only found in milk?
Casein and whey protein are the major proteins of milk. Casein constitutes approximately 80%(29.5 g/L) of the total protein in bovine milk, and whey protein accounts for about 20% (6.3 g/L) (19-21).
Why specific gravity of milk is important?
| Specific gravity of different substances Value | Skim milk 1.036 |
|---|
What is milk viscosity?
for natural pasteurized milk varied from 5.68 to 7.18 and for remade milk from 6.26 to 12.60 at 25°C. ... The viscosity of milk as determined is, to a certain extent, dependent upon the temperature at which the milk has been held. The viscosity is decreased slightly by pasteurization at 62−65°C.
What is the specific gravity of water?
In less dense liquids the hydrometer will float lower, while in more dense liquids it will float higher. Since water is the “standard” by which other liquids are measured, the mark for water is probably labeled as “ 1.000 “; hence, the specific gravity of water at about 4°C is 1.000.
Why is the specific gravity important?
Significance and Use
4.1 Specific gravity is an important property of fluids being related to density and viscosity . Knowing the specific gravity will allow determination of a fluid’s characteristics compared to a standard, usually water, at a specified temperature.
Which has more density water or milk?
The literature shows that the density of nonfat solids in milk at 10 ° C. is approximately 1.6 times that of water, whereas the density of milk fat is 0.93 times that of water. Thus, the density of nonfat solids is 0.6 greater than water, and that of fat is only 0.07 less than that of water.
What milk is more dense?
Cream or milk fat is lighter in density than water and floats on the surface of un-homogenized milk. When you skim off the surface, some of the fat, the denser portions remains and the milk is denser. This explains why skim milk is denser.
What is density of cow milk?
With all of this in mind, the density of milk varies within the range of 1027 to 1033 kg /m3 at 20° C .
What are the factors affecting specific gravity?
Factors that affected USG included age, diet type, sex, fasting status, drinking avidity, refractometer type, and the interaction between sex and diet – increasing dietary moisture content lowered USG only in female cats. Most factors minimally affected USG.
What is specific gravity of oil?
Specific gravity is an index used to measure the density of a liquid. ... Liquids with a density lower than water, which includes most crude oil grades and petroleum products, will have a specific gravity between 0.0 and 1.0 . In the oil industry, specific gravity is a common quality specification for finished products.
How do you calculate specific gravity?
The density of the object (x) divided by the density of water (1) gives us the specific gravity 0.8.
