Elemental composition of proteins
Proteins are predominantly constituted by five major elements in the following
proportion.
Carbon(C):👉 50 – 55%
Hydrogen(H):👉 06 – 7.3%
Oxygen(O): 👉 19 – 24%
Nitrogen(N):👉 13 – 19%
Sulfur(S): 👉 0 – 4%
Besides the above, proteins may also contain other elements such as P, Fe, Cu,
I, Mg, Mn, Zn etc.
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