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| Shipping Term: | Negotiated |
| Payment Term: | Negotiated |
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Zein, also known as alcohol-soluble protein (Zein), is a food protein widely found in plants, mainly derived from corn. Its chemical formula is N/A, molecular weight is 0, and CAS number is 9010-66-6. Zein is easily soluble in 80%~92% ethanol or 70%~80% acetone, but insoluble in water or anhydrous ethanol
Chemical and physical properties
Zein is usually yellow or light yellow flakes or powder, shiny, odorless and tasteless. Its melting point is between 266-283°C, and its density is 1.226 g/cm³ (25°C).
Corn protein is insoluble in water, but soluble in a variety of organic solvents, such as ethanol and acetone, and can also be dissolved in alkaline solutions (above pH 11.5).
Application areas
Corn protein is widely used in many fields due to its excellent film-forming, gelling and antioxidant properties:
Food industry: As a film-forming material, it is used for coatings of candies, grains and other foods to maintain the gloss of foods and prevent water loss
Pharmaceutical industry: As a drug excipient, it improves the stability and bioavailability of drugs and is often used in the preparation of sustained-release drugs
Chemical industry: Used in the manufacture of plastics, coatings, adhesives, inks and emulsifiers, etc., with moisture-proof, oxygen-proof, UV-resistant and other properties
Other applications: It is also widely used in cosmetics, biodegradable plastics and other fields
| Item | Specification |
| Appearance | Yellow powder |
| Identification: A , B, C | Conform |
| Nitrogen content | 13.10%-17.00% |
| Zein (Protein) | 88.00%~96.00% |
| Loss on drying | ≤8.00% |
| Fat(ether-soluble matter) | ≤2.00% |
| Residue on Ignition | ≤0.30% |
| Heavy metals | ≤0.002% |
| Total Plate Count | ≤1000cfu/g |
| Number of fungal and yeast | ≤100cfu/g |
| Escherichia coli | Negative |
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