Subcritical low temperature extraction equipment is used to extract natural products under low temperature and low pressure conditions. This technology utilizes solvents in a subcritical state (such as propane, butane, etc.) to perform the extraction. The subcritical state refers to the condition where the solvent is below its critical temperature and pressure. In this state, the solvent has a high solvency capacity but does not destroy heat-sensitive components.

Main Features

Low-Temperature Operation:

The extraction process is carried out at low temperatures, usually at room temperature or lower, which effectively protects heat-sensitive components such as vitamins and phenolic compounds.

High-Efficiency Extraction:

Subcritical solvents have a high solvency capacity, allowing them to efficiently extract target components and improve the extraction rate.

Environmental Safety:

Most of the solvents used are environmentally friendly, such as propane and butane. These solvents have low toxicity, low residue, and are easy to recycle.

Preservation of Natural Flavor:

Due to the low temperature operation, the extracted product can better preserve its natural flavor and nutrients.

Subcritical low temperature extraction equipment is widely used in the food, pharmaceutical, cosmetic, and other industries. It is mainly used to extract vegetable oils, essential oils, natural pigments, medicinal ingredients, and more. Examples include the extraction of grape seed oil, pepper oil, and rose essential oil.           

Application fields of Huatai subcritical low-temperature extraction flexible technology equipment

Plant protein extraction:

soy protein, peanut protein, walnut protein, pumpkin seed protein, wheat germ protein, etc.

Insect protein extraction:

silkworm pupa protein, mealworm protein, etc.

Natural pigment extraction:

marigold lutein, capsicum red pigment, gardenia yellow pigment, lycopene, etc.

Spice oil and plant essential oil extraction:

pepper oil, star anise oil, ginger oil, cumin oil, mustard essential oil, coriander oil, rose essential oil, jasmine essential oil, wormwood essential oil, artemisia annua oil, rosemary essential oil, thuja essential oil, agarwood essential oil, sandalwood essential oil, etc.

Defatting of Chinese medicinal materials:

Schisandra chinensis, Eucommia ulmoides seeds, etc.

Microbial oil extraction:

docosahexaenoic acid (DHA), arachidonic acid (ARA), Ganoderma lucidum spore oil, astaxanthin, Haematococcus pluvialis oil (microalgae oil), etc.

Functional plant oil extraction:

wheat germ oil, grape seed oil, cyperus oleifera oil, peony seed oil, Xanthoceras sorbifolia oil, almond oil, Acer truncatum oil, evening primrose oil, sea buckthorn seed oil, flaxseed oil, pumpkin seed oil, perilla seed oil, safflower seed oil, pomegranate seed oil, oat oil, etc.