Low-temperature subcritical fluid extraction process:
Raw materials - Extraction tank - Vacuum extraction - Injection of subcritical fluid solvent - Counter-current extraction (with certain pressure, temperature, material-solvent ratio, extraction time, and extraction frequency) - Extracted liquid - Reduced-pressure evaporation - Solvent separation and recovery (for recycling) - Target product
The obtained raffinate can be further processed.
Equipment advantage
Low-temperature operation, preserving active components
The subcritical extraction process is usually carried out at low temperatures (such as 45 - 60℃), which can effectively prevent the thermal denaturation of proteins and maximize the retention of the protein's activity and natural structure.
This technology is completed under an oxygen-free environment, further preventing protein oxidation, thus ensuring the quality of the protein.
Green and environmentally friendly, without solvent pollution
The solvents used in the subcritical extraction process (such as butane, water, etc.) are non-toxic and harmless, and they can be easily vaporized at normal temperature and pressure, without remaining in the product.
The entire extraction process is carried out in a closed system, achieving zero emissions and avoiding "three types of waste" pollution.
Production of skimmed animal and plant protein
Due to the low-temperature characteristic of subcritical extraction, it can be used to produce plant defatted proteins, which are characterized by the invariance of protein molecules.
The subcritical low-temperature defatting technology not only produces animal and plant protein foods, but also is the best way for the industrialized processing of plant concentrated proteins, enzymatic proteins, separated proteins, and protein peptides as raw materials.