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Modification of the solubility of sunflower protein isolates by superlimited proteolysis

✍ Scribed by Bulmaga, V. P. ;Shutov, A. D. ;Vaintraub, I. A.

Publisher
John Wiley and Sons
Year
1989
Tongue
English
Weight
282 KB
Volume
33
Category
Article
ISSN
0027-769X

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✦ Synopsis

The modification of slightly soluble sunflower protein isolates by superlimited proteolysis (-0.1 % splitting of the peptide bonds) raises 1 S-2-fold their solubility in neutral medium. The modified preparations may be isolated by isoelectric precipitation with a yield of 95-98 % and became capable to form thermotropic gels.

The yields of the isolates obtained from industrial solvent cake are lower (80-82%). The expenditure of proteinase is one order lower than in the usually employed methods of limited proteolysis and the duration of the process is several times lower.

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