What is Soy Protein Isolate Powder?
Soy Protein Isolate Powder is white to light yellow powder. Soy protein isolate(SPI) is a protein product produced from non-transgenic soybean meal by low-temperature desolvation. The protein content of soybean protein isolate is more than 90%, and there are nearly 20 kinds of amino acids, which contain the amino acids needed by the human body.

Product Identification
Product name | Soy Protein Isolate Powder |
Other Names | Soy peptide, Soya protein, Soy protein isolate, Isolated soya protein |
CAS No. | 9010-10-0 |
Appearance | Powder |
Colour | White to light yellow powder |
Odor | No Odor |
Specification | 90% |
Package | 20kg/bag |
Shelf Life | 12 months |
Grade | Food grade |
Functions
Soy protein isolate is a plant-based protein. The main ingredients are soybean conglycinin and glycinin. The amino acid composition of soy protein is structurally similar to milk protein. In addition to the low content of methionine and methionine, it is rich in essential amino acids such as lysine, leucine and threonine, and does not contain cholesterol. It is a healthy food suitable for all ages.
In terms of nutritional value, since the amino acid composition of SPI is similar to animal protein, it can replace animal protein. Moreover, soybean protein has irreplaceable advantages of animal protein. Not only does it not contain cholesterol, but its unique physiologically active substance isoflavones also has the effect of lowering cholesterol. It is also known as the most nutritious plant protein.
Applications
The protein content of soybean protein isolate is as high as 90%, and it has good emulsification, solubility, foaming, oil absorption and water retention. Soybean protein isolate powder is widely used in fish products, meat products, pasta products, cold food products and sugar products.
Quality Standard
Assay | |
Protein (dry basis) | ≥90% |
Moisture | ≤7% |
Ash (dry basis) | ≤6% |
Contaminant | |
Heavy metals | ≤10ppm |
Lead (Pb) | ≤ 1ppm |
Arsenic (As) | ≤ 0.5ppm |
Cadmium(Cd) | ≤ 0.2ppm |
Mercury(Hg) | ≤ 0.2ppm |
Microbiological | |
Total Aerobic Microbial Count | ≤ 1000cfu/g |
Total Yeasts and Molds Count | ≤ 100cfu/g |
E. coli | Negative/10g |
Certification and Qualification

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