How to calculate the biological value of protein, Biology

Assignment Help:

How to Calculate the Biological Value of Protein?

A method for determining the biological value of proteins was developed by Mitchell in 1925. It measures the quantity of dietary proteins utilized by the animal for meeting its protein needs for maintenance and growth. Groups of albino rats (28 days old) are fed successively on the following diets for a period of 10 days:

(1) protein-free diet, and

(2) Diet containing 10 percent protein to be tested.

Urine and faeces are collected by keeping them .in metabolism cages. Records of food intake are maintained. The diet, urine and faeces are analyzed for nitrogen. Biological value is then calculated using the following formula:

320_Biological Value of Protein 2.png

Thus, BV is a measurement of protein quality expressing the rate of efficiency with which the protein is used for growth. On a scale with 100 representing top efficiency, Table presents the biological values of proteins in several foods.

Table: Biological values of proteins in several foods

377_Biological Value of Protein 1.png


Related Discussions:- How to calculate the biological value of protein

Would this drug have negative side effect, Release of lysosomal enzymes fro...

Release of lysosomal enzymes from white blood cells during a local immune attack can contribute to the symptoms of inflammation. Suppose, to alleviate inflammation, you develop a d

Coeleterates, what are the characteristics of cleavage formed in coelentera...

what are the characteristics of cleavage formed in coelenterates?

Define some essential facts about the fats, Define some Essential facts abo...

Define some Essential facts about the Fats? 1) Fats are essential in diets to facilitate satiety, high-energy intakes, and absorption of fat-soluble vitamins and provide essent

Explain the treatment of susceptible tb, Treatment of susceptible tb Al...

Treatment of susceptible tb All isolates of Mycobacterium tuberculosis should be tested for antimicrobial susceptibility, but results generally do not become available for at l

Why do some physicians advise patients, Why do some physicians advise patie...

Why do some physicians advise patients with a bladder infection to drink a lot of cranberry juice? Answer Cranberry juice contains chemicals that kill viruses and bacteria. The inc

What are two specific actions in this, The major ecological imbalance on Ea...

The major ecological imbalance on Earth is between the human species and the rest of Earth's biota. What are two specific actions we could do to achieve a balance (for example, rec

Explain the acoelomates - animals without a body cavity, Explain the Acoelo...

Explain the Acoelomates - Animals without a Body Cavity? The simplest group of animals that has bilateral symmetry and a solid body (acoelomate) is the Platyhelminthes. Phy

Effect of destruction of microbial barriers, Q. Effect of Destruction of Mi...

Q. Effect of Destruction of Microbial Barriers? Physical damage to the integument allows microbial invasion of the underlying nutrient-rich tissues and it is a common observati

What are d- and l- glucose, D- and L- glucose are Select one: a. ster...

D- and L- glucose are Select one: a. stereoisomers b. configurational isomers c. optical isomers d. enantiomers e. all of the above

Explain the integumentary system in human biology, Explain the Integumentar...

Explain the Integumentary System in human biology? The skin, its glands, and outgrowths form the Integumentary system. This system provides protection, sensory perception, tem

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