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KUNHUA BIOLOGICAL TECHNOLOGY CO., LTD, located in industrial concentration area in Tangyin county, Henan province, is earliest company engaged in subcritical extraction technology at low temperature as well as wheat germ oil products development and utilization. We are the largest manufacturer of wheat germ oil and other vegetable oils in China. The annual output of natural vegetable oil is 2,000 tons. We have manufacture equipments, R&D institutions and quality inspection center which with the modern high-tech, and our company has proprietary rights of import & export.

With the purpose of offering people more opportunities and conditions to enjoy high- quality life, our company has been dedicated to extraction and development of natural products. KUNHUA BIOLOGICAL TECHNOLOGY CO, LTD is specialized in the production and wholesales of wheat germ oil. These products are widely applied to health products, cosmetics and edible oils industry. They were developed through science research during the process which with the improving of our living standard, the high quality of life and healthty demand of the products are promoting. These healthy oils have the functions of softening artery, regulating lipids, anti-aging, making the person's brain morn flexible and beautifying features, etc. Nowadays, they are recognized by consumers of the world. The principle of the Company would be taking down-to-earth atitude towards life, providing high-quality product to both the market and consumers and welcoming customers at home and abroad to consult.

Subcritical fiuid mainly consists of liquefied propane and butane. The boilig point of the solvent composition is mostly under 0 °C, boiling point of propane is 42.07 °C, boilig point of butane is 0.5 °C. Its form difers under diferent conditions, such as gas for normal pressure, liquid for after pressure. The basic principle of this process is as fllows. extracting oil embryos (such as walnuts, month saw grass seeds, etc ) with subritical fluid flow under normal temperature and a certain pressure (0.3 MPa to 0.8 MPa), and then decompressing and gasitying the solvent in mixed oil and meal, recycling the post-gasification solvent gas which has been condensed and liquefed by compressor. At present, supercritical technology is flly replaced by this technology for its low cost ( its cost is equal to no. 6 solvent extraction cost, but 60% lower than the cost of supercritical extraction ) and large scale. ( the amount of daily processing is 100 kg - 200 tons ) . To ensure the effect of the material composition is not affected by temperature, it is widely used in the extraction of thermal sensitive materials.

(1) The meal quality is good after being pulped, the invariance rate of water-soluble protein is greater than 95%, meal in the residual oil is less than 1%, the residual solvent is less than 50 PPM;

(2) Low solvent consumption, tons of material consumption is less than 6 kg;

(3) 90 °Chot water is needed instead of steam, relatively 70% heat energy can be saved in using number six solvent,

(4) pollution free, environmental protection engineering;

(5) the color of extraction oil is light, low content of lecithin, residual solvent is less than 1 PPM;

(6) Extraction under normal temperature, desolventization in low temperature (less than 30 °C), do no harm to the heat sensitive materials in meal and oil , ideal extraction process of precious oil, pigment and Chinese herbal medicine;

(7) Small investment, low production costs (relatively supercritical fluid extraction equipment of carbon dioxide);,

(8) wide source and low price of subcritical fluid. The solvent is available in oil and gas fields and oil refineries, and it has a lower price than solvent 6.

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