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

Determine the wechsler intelligence scales, Determine the Wechsler Intellig...

Determine the Wechsler Intelligence Scales This test is given according to manual instructions and is not modified in any way. Most clinicians use the most current revision of

Determine regulation of ph of body fluids, Blood functions to maintain home...

Blood functions to maintain homeostasis in the human body through all but which of the following: Answer moving carbon dioxide away from cells following completion of aerobic metab

Give detail explanation about swimming, Give detail explanation about Swimm...

Give detail explanation about Swimming Swimming is an excellent form of exercise. Swimming can improve the posture and circulation. It is a healthy activity. There are certain

What are the main human diseases caused by fungi, What are the main human d...

What are the main human diseases caused by fungi? The main human diseases caused by fungi are coccidioidomycosis, histoplasmosis, blastomycosis, paracoccidioidomycosis, or Sout

Definition of old age, Definition of old age? The exact timing of the ...

Definition of old age? The exact timing of the onset of the ageing process cannot be ascertained because the effect of age varies among different individuals. However, the chr

What is ionic bonds, What is Ionic bonds ? Ionic Bonds :  Ionic bonds...

What is Ionic bonds ? Ionic Bonds :  Ionic bonds hold atoms together in crystals. They form when oppositely charged atoms, or ions, join (opposite charges attract) to equaliz

ZOLOGY, The destruction of the ozone layer may be responsible for an increa...

The destruction of the ozone layer may be responsible for an increase in

Explain process of determination of vitamin B6, Explain process of Determin...

Explain process of Determination of vitamin B 6 Colorimetric determination of indophenol dye using 2,6-dichloroquinone chloraimide as colour reagent or diethyl-p-phenylenediam

Explain precautions for gram staining of bacterial cultures, Explain Precau...

Explain Precautions for Gram Staining of Bacterial Cultures? 1. The dilutions should be chosen on the basis of expected counts in the food sample. 2. Food should be kept in

Explain about modifiable risk factors, Q. Explain about Modifiable Risk Fac...

Q. Explain about Modifiable Risk Factors? 1. Behavioural Smoking Sedentary Lifestyle Habits Dietary Errors 2. Physiological Hyperlipidemia Hypertension Obe

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