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

Animal tissue culture , Animal Tissue Culture: The term tissue culture ...

Animal Tissue Culture: The term tissue culture refers to the culture of all organs, tissue fragments and dispersed cells on a suitable nutrient medium. It may be divided into

Explain delavirdine, Explain Delavirdine Delavirdine (DLV, Rescriptor)...

Explain Delavirdine Delavirdine (DLV, Rescriptor) - Delavirdine is the least potent NNRTI. A study comparing delavirdine/zidovudine/didanosine, delavirdine plus either zidovud

Explain the sponge method, Explain the Sponge Method? In the sponge met...

Explain the Sponge Method? In the sponge method, sterilized sponge with 45 x 5 cm contact surface and free from antimicrobial agent is used. Aseptically, it is moistened with 1

Imaginal discs, Imaginal Discs In the holometabolous larva, there are ...

Imaginal Discs In the holometabolous larva, there are two cell populations: (1) The larval cells that are used for the larval structures and (2) The imaginal disc and th

Diagnosis of lyme disease, Diagnosis of lyme disease In endemic areas, ...

Diagnosis of lyme disease In endemic areas, Lyme disease is diagnosed by recognition of erythema migrans. IgG antibodies to B. burgdorferi are usually detectable 4 to 6 weeks a

Why pulses are important for human - nutritional factor, Why Pulses are imp...

Why Pulses are important for human - nutritional factor? Pulses are rich sources of proteins (20-25 g/100 g), the limiting amino acid being methioniize. However, protein quality

Types of eggs, TYPES OF EGGS Different species of animal has different ...

TYPES OF EGGS Different species of animal has different type of eggs. They are classified on the following basis - 1 .         ON THE BASIS OF AMOUNT OF YOLK On the ba

Explain hepatitis c, Hepatitis C It provides sustained viral responses ...

Hepatitis C It provides sustained viral responses (SVRs) of 54% to 63%. When used as monotherapy, peginterferons once weekly are more effective than standard interferon 3 times

Calcium channel blockers, Calcium antagonists are not recommended for the t...

Calcium antagonists are not recommended for the treatment of CHF because of their negative inotropic effects. However, second-generation dihydropyridine-type calcium antagonists su

Physiological characteristics of molds, Q. Physiological Characteristics of...

Q. Physiological Characteristics of molds? The physiological characteristics of molds will be reviewed only briefly here and will be discussed in more detail subsequently. Mois

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