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

Metabolism of fructose, Fructose is an abundant sugar in the human diet; su...

Fructose is an abundant sugar in the human diet; sucrose (table sugar) is a disaccharide that when hydrolyzed yields glucose and fructose and fructose is also a major sugar in hone

Results of monohybrid crosses, Results of Monohybrid Crosses Mendel got...

Results of Monohybrid Crosses Mendel got the following results from his monohybrid crosses :- 1.         F 1  plants produced by a cross between two plants pure for the cont

Explain the wash technique used in sterilization process, Q. Explain the Wa...

Q. Explain the Wash Technique used in sterilization process? Use of artificial nails is contraindicated as is use of colored nail polish. Nails should be short enough to allow

Signal transduction, Signal Transduction The body consists of a huge va...

Signal Transduction The body consists of a huge variety of cell types which must work together to sustain the life of an organism. They must respond to their environment and co

Shapes - types of nursing units, Shapes: Nightingale Ward  In the 1...

Shapes: Nightingale Ward  In the 1940s,  this traditional nursing unit was based on  the long rectangle pavilion type ward and self-contained unit. This concept is establis

Why the l enantionmer is more dominant, In the Miller-Urey experiment, amin...

In the Miller-Urey experiment, amino acids of bothe the L and D enantionmers. Why is it that the L enantionmer is more dominant in living things?

Explain the bohr''s model, Explain the Bohr's model? Bohr's Model :  ...

Explain the Bohr's model? Bohr's Model :  Electrons move around the nucleus at tremendous speeds and occupy most of the space in an atom. The exact position or location of an

Which kind of plant tissue is cork, Which kind of plant tissue is cork? ...

Which kind of plant tissue is cork? The Cork is the material for instance, used to cap wine bottles, and is extracted from the suber of a special oak called cork.

Bacterial diseases-anthrax, Anthrax Synonym              :    Wool sor...

Anthrax Synonym              :    Wool sorter’s disease Species affected    :    Cattle, sheep, goats, pig, horse and majority of the mammals. Fowls are resistant to anthr

Why iron is required as a part of haemoglobin, Why Iron is required as a pa...

Why Iron is required as a part of haemoglobin? As a part of haemoglobin, iron is required for the transport of oxygen, to all cells in the body. Thus, haemoglobin is critical f

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