Explain the term chemical score, Biology

Assignment Help:

Explain the term Chemical Score?

Since egg proteins contain all essential amino acids in adequate amounts and possess the highest nutritive value among dietary proteins, Block and Mitchell (1946) assigned a chemical score of 100 to egg proteins. Since the nutritive value of the proteins depend on the essential amino acid most limiting in the dietary proteins, they evolved a chemical score (based on the most limiting essential amino acid) which can serve as an index of the nutritive value of the proteins. The chemical score is the 'ratio between the content of the most limiting amino acid in the test protein to the content of the same amino acid in the reference protein (egg protein) expressed as a percentage'. The chemical score formula is given herewith. Chemical score of milk proteins is 65 and those of gelatin and zein are 0.

Chemical Score (CS) = (mg of amino acid in lg of test protein / mg of amino acid in lg of reference protein) * 100

Lastly, nutrient-to-energy ratio has attracted wide interest as indices of dietary quality.


Related Discussions:- Explain the term chemical score

Heterotrophs, Collect images of heterotrophs and make a Powerpoint Presenta...

Collect images of heterotrophs and make a Powerpoint Presentation on them

Demonstrate the structure of mitochondria, Demonstrate the structure of mit...

Demonstrate the structure of mitochondria The structure of mitochondria has been examined in great detail with the aid of the electron microscope, and it is now possible to des

Describe what types of results describe hypothesis, Why did giraffes develo...

Why did giraffes develop long necks? 1) Describe an experiment to test this hypothesis. Be explicit about the methods you will use, the setting, the time that the experiment wil

Essentials of Human Diseases and Conditions, How do pathological conditions...

How do pathological conditions affect homeostasis of your body?

Symptoms of malabsorption syndrome, Q. Symptoms of malabsorption syndrome? ...

Q. Symptoms of malabsorption syndrome? The most common symptoms are weakness, lassitude and marked weight loss. Steatorrhoea (excess fat in stools), anaemia and chronic ill h

Explain the bunsen burner, Explain the Bunsen Burner? It is a type of g...

Explain the Bunsen Burner? It is a type of gas burner that gives very hot flame by allowing air to enter at the base and mix with the gas. It is used - (a) For sterilizing i

Determine the concept of digestion of fats, Which of the following assist i...

Which of the following assist in the digestion of fats? A. Production of bile salts in the liver and the secretion of those bile salts into the small intestine. B. Emulsific

Tertiary prevention- preventive strategies for food allergy, Define Tertiar...

Define Tertiary Prevention- preventive strategies for food allergy? Tertiary Prevention: Targets the control of factors that cause symptoms. This strategy would be appropriate

Ganong''s potometer, What happens to the movement of the air bubble if the ...

What happens to the movement of the air bubble if the apparatus is kept in i. In the dark ii. In sunlight iii.In front of a fan

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