Proteins are nitrogen-containing biomolecules and macromolecules, which exist in all organisms. Proteins are formed by joining one or more chains of amino acids residues together. As the material basis of life, proteins perform various physiological functions in the human body. They are directly involved in the chemical processes essential for life, including catalyzing metabolic reactions, replicating DNA, responding to stimuli, and transporting molecules from one place to another.
We offer several commercially available proteins including soy protein, rice protein, pea protein and whey protein. Soy protein and pea protein are high in nutritional value and both contain nine essential amino acids. Soy protein and pea protein are the most nutritious choices for vegetarians and vegans to supplement protein. Rice protein is less nutritious than animal proteins due to its low lysine and threonine content. In comparison to the first three plant-based proteins, whey protein is derived from milk. It contains a variety of active ingredients and has the characteristics of high nutritional value. Additionally, it is easy to digest and absorb. Whey protein is recognized as one of the highest quality protein supplements, especially for the fitness crowd.
Proteins and Healthy Diet
Proteins are a vital part of a healthy diet. The type, quantity and ratio of essential amino acids contained in food determine the nutritional value of food proteins. In general, the more closely the amino acid pattern of proteins in food matches that of the human body, the more efficiently the body absorbs them. In this case, the nutritional value of proteins is higher. From the perspective of nutritional value, proteins can be divided into the following three categories.
A food is considered a complete protein or high-quality protein when it contains all nine essential amino acids in sufficient quantities. The ratio of various amino acids in complete proteins is generally in line with the needs of the human body, which makes proteins easily absorbed and utilized by the human body. They not only maintain the health of adults, but also have a positive effect on the growth of children. High-quality proteins mainly are animal proteins (such as eggs, milk, poultry meat, fish and shrimp), and soybean protein.
- Partially complete proteins
These proteins contain a wide variety of essential amino acids, but the ratios and content are not appropriate. Despite maintaining life, they do not properly promote growth and development if used as the only source of protein. Most plant-based proteins such as cereals, potatoes, and vegetables are partially complete proteins.
These proteins lack essential amino acids and are of poor quality. If they are used as the only source of dietary protein, they can neither promote growth nor maintain life. Zein in corn, collagen in animal connective tissue and meat skin, and globulin in peas are all incomplete proteins.
When supplementing with protein, high-quality protein should be preferred among the three types of protein. Since high-quality protein is close to the amino acid pattern in the human body, it can supplement more amino acids needed by the human body and provide more nutrition. Therefore, this type of protein has the highest biological value when it is used as the only protein source.
Recommended Intake
| The lack of amino acids may lead to low immunity, decreased digestion and poor response, as well as decreased plasma protein, stunted bone and brain development, and decreased muscle mass. Therefore, amino acid supplementation is of great significance for the maintenance of good health. When supplementing with protein, give priority to complete proteins because they provide adequate nutrition. The United States Food and Drug Administration recommends that adults consume 50 grams of protein per day, with appropriate adjustments to protein intake based on daily calorie intake. |
Alfa Chemistry provides a wide range of ingredients for nutritional supplements, including soy protein, pea protein, rice protein, and whey protein. Please do not hesitate to contact us with any questions.
Our products and services are for research use only and cannot be used for any clinical purposes.
