What is the composition and function of potato protein?
Characters and components of potato protein
The characteristic index of potato protein is gray color, light and soft smell, no odor, fine and uniform particles.
The results showed that potato protein was a complete protein, consisting of 19 amino acids with a total value of 42.05%. The amino acid composition of potato protein is reasonable, in which the content of essential amino acid is 20.13% and the content of non-essential amino acid is 21.92%.
The essential amino acid content of potato protein accounted for 47.9% of the total amino acid, and its essential amino acid content was similar to that of egg protein (49.7%), which was significantly higher than the standard protein of FAO/WHO. The first limiting amino acid of potato protein is tryptophan, and it is rich in lysine, which is lacking in other food crops, and can complement various cereal proteins such as soybean protein.
Comparison of potato protein and soy protein isolate:
What are the functions of potato protein?
Studies have shown that potato protein can prevent the accumulation of fat in the cardiovascular system, maintain the elasticity of arteries, prevent premature atherosclerosis, prevent the atrophy of connective tissue in the liver and kidney, and maintain the lubrication of the respiratory tract and digestive tract.
Potato glycoprotein is the main component of potato protein, which has good solubility, emulsification, foaming and gelling properties, and also has acyl hydrolysis activity and antioxidant activity.