Soy Protein Isolate (SPI) Production Line Equipment
Raw Material: Low-Temperature Soybean Meal
Product: Soy Protein Isolate
By-product: Soybean Dietary Fiber
Uses: Food additive, health product raw material (protein content over 90%)
Process Characteristics: Utilizes alkali dissolution and acid precipitation processes to separate fiber and protein from low-temperature soybean meal. The protein is then homogenized, sterilized at high temperature, and spray-dried to obtain soy protein isolate. High protein content, high water consumption, requiring supporting water treatment facilities.
Cottonseed Protein Production Line Equipment
Raw Material: Cottonseed
Product: Dephenolized Cottonseed Protein, High-Protein Cottonseed Meal
By-products: Cottonseed Oil, Short Linters, Cottonseed Hulls
Uses: Protein Raw Material (crude protein greater than 50%, gossypol content less than 400 ppm)
Process Characteristics: Cottonseed protein is a high-protein product made from cottonseed through delinting, hulling, low-temperature pretreatment, one-time leaching for defatting, draining, and then removing the toxic substance gossypol. It is a newly launched protein raw material in China.
Soy protein concentrate (SPC)
SPC is a product made from low-temperature defatted soybean meal. Soluble sugars, ash, and off-flavors are removed through washing with an ethanol-water solution or dilute acid, retaining the protein content. The protein content is typically ≥ 65% (dry basis).
This process effectively improves the taste and functional properties of soy products. Common production processes include:
Alcohol Process (Most Common, Industrial Mainstream): This method uses ethanol to dissolve and remove oligosaccharides and some off-flavors from soybeans without denaturing the protein.
Raw Material Processing: Low-denaturation, low-temperature defatted soybean meal is selected.
Extraction and Washing: Soybean meal is mixed with a 60%-80% concentration edible ethanol solution in a certain proportion, stirred, and the temperature is controlled at 50℃-60℃, undergoing multiple countercurrent washings.
Desolventizing and Drying: The extract is separated, the wet protein residue is desolventized (ethanol recovery) and dried to obtain soy protein concentrate. Complete Set of Protein Engineering Solutions, choose Huatai Group. We look forward to building a strong and long-term business relationship with you.
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