Proteins glycinin

Fignre 6 Shear stress as a function of the shear strain for adsorbed glycinin protein layers after an ageing time of about 1 h. Proteins concentration 0.1 g I 1. pH indicated... 

Fig. 3. Sodium dodecyl sulfate—polyacrylamide gel electrophoretic pattern for molecular weight standards (lane 1) water-extractable proteins of defatted soybean meal (lane 2) purified IIS (glycinin) (lane 3) and purified 7S (P-conglycinin) (lane 4) where the numbers represent mol wt x 10. The gel was mn in the presence of 2-mercaptoethanol, resulting in the cleavage of the disulfide bond linking the acidic (A bands) and basic (B bands) polypeptides of the...

Arachin, the counterpart of glycinin in peanuts, consists of subunits of 60,000—70,000 mol wt which on reduction with 2-mercaptoethanol yield polypeptides of 41,000—48,000 and 21,000 mol wt (17) analogous to the behavior of glycinin. In addition to the storage proteins, oilseeds contain a variety of minor proteins, including trypsin inhibitors, hemagglutinins, and enzymes. Examples of the last are urease and Hpoxygenase in soybeans. 

Legumin, from Pea. (Osborne and Clapp.) Amandin, from Almond. (Osborne and Clapp Osborne and Gilbert.) Glycinin, from SoyBean. (Osborne and Clapp.) Phaseolin, from White Kidney Bean. (Cisborne and Clapp.) Protein of Maize. (Osborne and Clapp.)... 

Kinsella (16), in his recent review on texturized proteins, described the texturization process as follows the globular proteins (glycinins) in the aleurone granules become hydrated within the extruder barrel, are gradually unravelled, and are stretched by the shearing action of the rotating screw flites. 

Glycinin n/a 320-360 1 lS-Globulin <30b Seed storage protein, water... 

The soy protein isolate contains several proteins but additional experiments indicated, that the glycinin and the 11S fraction alone accounted for the reversible aggregation (1 ). 

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