Do you really understand Isolated soy protein?



Whether it’s a “big jar” protein powder for building muscle, or a “little piece” of protein powder for boosting immunity. In the past, whenever protein powder was mentioned, people often thought of animal-derived protein first, followed by plant-based proteins such as soy protein. Some people even arbitrarily believe that protein from plant sources cannot compete with protein from animal sources. However, the increasing number of protein powders using soy protein isolate as the main raw material on the market also illustrates an indisputable fact. Plant protein is attracting the attention of more and more protein powder manufacturers? In view of this, the editor has to ask, do you really understand soy protein isolate?

The "top student" in plant protein

To evaluate whether a protein is "high-quality", it mainly depends on whether its "amino acid pattern" is good and whether its "amino acid score" is high. If the amino acid ratio in the food is close to the amino acid composition ratio in the human body, it means that the amino acid pattern is good and the amino acid score is high, which means that it is highly utilized after entering the human body. In this regard, soy protein isolate is undoubtedly the "top student" among plant proteins.

PDCAAS (Protein Digestibility Corrected Amino Acids Score), which is the protein digestibility corrected amino acid score, is a protein quality assessment method proposed by the joint expert assessment team of the Food and Agriculture Organization of the United Nations and the World Health Organization. Based on the essential amino acid requirements of children aged 2 to 5 years old, the available essential amino acid content in food is compared with this. The perfect score is 1, which is 100%. A score of 1 indicates that the protein is a high-quality protein. According to this scoring benchmark, soy protein isolate has a PDCAAS of 1 and beef has a PDCAAS of 0.92.

It doesn’t matter if you are confused by this long list of explanations. Simply put, if the full score of high-quality protein is 100 points, then soy protein isolate gets full points and beef gets 92 points. In fact, soy protein isolate has a protein content of up to 90% and is rich in 8 essential amino acids. You know, soy protein is the only high-quality protein among plant proteins. Therefore, it is not an exaggeration to say that soy protein is the "top student" among plant proteins.

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