Application of Subcritical Low-Temperature Extraction Technology in the Oil and Fat Industry

The application of subcritical low-temperature extraction technology in the oil and fat industry is very extensive. This technology utilizes subcritical fluids (such as liquid carbon dioxide) as extractants to separate and purify substances under low-temperature conditions.

Specific aspects of its application in the oil and fat industry:

Oil Extraction:

Subcritical low-temperature extraction technology can be used to extract oils from plant materials such as soybeans, rapeseed, and sunflower seeds. Compared to traditional solvent extraction methods, this technology operates at lower temperatures, thereby protecting heat-sensitive components in the oil and improving its quality. Moreover, the lower extraction temperature results in relatively low energy consumption, helping to reduce production costs.

Oil Refining:

In the oil refining process, subcritical low-temperature extraction technology can be employed to remove impurities and undesirable components from oils, enhancing their purity and stability. By precisely controlling the extraction conditions, efficient separation of impurities can be achieved while preserving the nutritional value and flavor of the oil.

Production of Specialty Oils:

Subcritical low-temperature extraction technology is also suitable for producing specialty oils, such as oils rich in specific nutrients or functional oils. By adjusting the type of extractant and extraction conditions, specific components can be targeted for extraction from raw materials, resulting in oil products with particular functionalities.

Environmental Protection and Sustainability:

Subcritical low-temperature extraction technology offers advantages in environmental protection and sustainability. Since the extractants used (such as liquid carbon dioxide) are easy to recover and reuse, environmental pollution is reduced. Additionally, this technology helps improve the utilization rate of raw materials and reduces waste generation, aligning with green and low-carbon development principles.

In summary, subcritical low-temperature extraction technology holds broad prospects for application in the oil and fat industry. With continuous technological advancements and refinements, it will play an increasingly significant role in oil extraction, refining, and specialty oil production, driving the sustainable development of the industry.