Zein-extracted gluten

The seed coating effect of the biopolymer zein, extracted from the gluten meal of maize, was tested on the germination rate of sugar beet Beta vulgaris L.) and broccolis (Brassica oleraceae var italic L.) seeds under laboratory conditions. 

Zein Extracted from corn gluten Binder, Coating agent... 

Nitrogen sources include proteins, such as casein, zein, lactalbumin protein hydrolyzates such proteoses, peptones, peptides, and commercially available materials, such as N-Z Amine which is understood to be a casein hydrolyzate also corn steep liquor, soybean meal, gluten, cottonseed meal, fish meal, meat extracts, stick liquor, liver cake, yeast extracts and distillers solubles amino acids, urea, ammonium and nitrate salts. Such inorganic elements as sodium, potassium, calcium and magnesium and chlorides, sulfates, phosphates and combinations of these anions and cations in the form of mineral salts may be advantageously used in the fermentation. 

Zein occurs as a very light yellow to tan colored, granular or fine powder. It comprises the prolamine protein component of corn (Zea mays Linne ). It is produced commercially by extraction from corn gluten with alkaline aqueous isopropyl... 

Partial hydrolysis of proteins using acid, alkali or enzymes is commonly employed to improve functionality and usefulness of novel proteins. Acid hydrolysis is the most common method for preparing hydrolysates of soy, zein, casein, yeast and gluten. Hydrolysates are used in formulated foods, soups, sauces, gravies, canned meats, and beverages as flavorants and thickeners (2,3,6). Alkaline treatments have been employed to solubilize and facilitate protein extraction from soy, single cells, and leaves. 

Zein is extracted from corn gluten meal with dilute propan-2-ol. 

Derivation By-product of corn processing, by extraction of gluten meal with 85% isopropanol, extraction of the zein from the extract with hexane, precipitation by water, and spray drying. 

Extracted proteic component of com gluten (zein) 164 0% moisture DMTA MDSC... 

There are other biomaterials with great potential in food packaging applications which are directly extracted from biomass, such as proteins (gluten, zein, etc.) and polysaccharide (i.e., chitosan). Some proteins and polysaccharides have excellent barriers under dry conditions, comparable to EVOH. However, under humid conditions these deteriorate to a much larger extent than EVOH. On the other hand, thermoplastic biopolymers such as PLA or PCL are not as strongly affected by moisture but have lower barriers than the benchmark PET. Research should therefore aim to diminish the water sensitivity of proteins and polysaccharides and to enhance the gas barrier of thermoplastic biopolyesters to make them suitable for monolayer and multilayer food packaging applications. 

A protein derived from corn. It lacks the essential amino acids lysine and tryptophan. Commercially, zein is extracted from corn gluten meal with alcohol. In the food industry, its prime use is as an edible coating for foodstuffs such as nut meats and candy. In manufacturing, it has a variety of uses plastics, paper coatings, adhesives, shellac substitute, printing, laminated board, and microencapsulation. 

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