How to calculate the net protein utilization (npu), Biology

Assignment Help:

How to calculate the Net Protein Utilization (NPU)?

Mitchell (1922) introduced the term 'Net Utilization of Dietary Protein' which is a product of digestibility coefficient and biological value divided by 100, as shown herewith.

NPU = Digestible coefficient * Biological Value / 100

A direct method of estimating Net Protein Utilization (NPU) was developed by Miller and Berzder (1955). Groups of albino rats 28 days old were used. One group was fed on a non-protein diet while the other groups were fed on the test diets containing different proteins at 10 percent level for a period of 10 days. The food intakes of the animals were measured. The animals were killed at the end of 10 days and the body nitrogen was determined by Kjeldahl method on a sample of dried and powdered carcass. The NPU is calculated according to the formula:

1932_Net Protein Utilization.png

The main advantage of determining NPU of a food or diet is that it helps in the calculation of the net available protein of the diet. Studies have shown that there is a good correlation between the values for PER, NPU and chemical score.


Related Discussions:- How to calculate the net protein utilization (npu)

Light microscopy, Light microscopy: Microscopy started with light micr...

Light microscopy: Microscopy started with light microscopes using visible light to illuminate the objects, the most used and familiar microscope is called compound light micro

Explain the tubal ligation, Explain the Tubal Ligation   This process i...

Explain the Tubal Ligation   This process is the most commonly utilized method of female sterilization. Tubal ligations are generally done in an outpatient surgical center. Thr

Structure and function of lipoproteins, Triacylglycerols, cholesterol and p...

Triacylglycerols, cholesterol and phospholipids are associatively insoluble in aqueous solution. Thus, they are transported around the body in the blood as parts of lipoproteins.

Define advantages of direct microscopic count, Define Advantages of Direct ...

Define Advantages of Direct Microscopic Count? 1. It is easy, inexpensive and relatively quick method. 2. It gives information regarding size and morphology of microorganism

Diversty of living organisms, write down the division of cryptogamae and p...

write down the division of cryptogamae and phanerogamae

Explain infants and preschool children, Explain Infants and Preschool Child...

Explain Infants and Preschool Children Growth? In this unit we will be studying about one of the crucial phases of human growth and development i.e. infancy to preschool years.

How can the formation of egg cells from germ cells, Indicating the name and...

Indicating the name and respective ploidy of each involved cell how can the formation of egg cells from germ cells be described? The formation of egg cells starts with a germ c

Explain about the hypokalemia, Explain about the Hypokalemia? Normal s...

Explain about the Hypokalemia? Normal serum K ranges from 3.5-5 mM/L. Hypokalemia or low plasma K levels can occur with a net shift of K from the plasma to the cells. This shi

Define procedure for testing the presence of sugar in milk, Define Procedur...

Define Procedure for Testing the Presence of Sugar in Milk? 1. Take 0.1 ml of milk sample in a test tube. 2. Add 0.2 ml of resorcinol solution (0.05 gm of resorcinol in 100

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd