✦ LIBER ✦

A study of gelatine-methylcellulose compatibility in aqueous media

✍ Scribed by Grishchenkova, E. V. ;Antonov, Yu. A. ;Braudo, E. E. ;Tolstoguzov, V. B.

Publisher: John Wiley and Sons
Year: 1984
Tongue: English
Weight: 455 KB
Volume: 28
Category: Article
ISSN: 0027-769X
DOI: 10.1002/food.19840280109

No coin nor oath required. For personal study only.

✦ Synopsis

The phase-volume-ratio method has been used to study the phase diagrams (at 35 "C) ofthe system gelatinemethyl-cellulose-water at pH's 4.75 and 3.0 and also in the presence of 0.5 M NaC1. Generally, the data obtained provide support for the low compatibility of proteins and neutral polysaccharides in the isoionic protein point and demonstrate the possibility of the improvement of the gelatine-methylcellulose compatibility by shifting pH from the isoionic gelatine point. In addition, it has been shown that NaCl produces a small effect on the gelatine-methylcellulose compatibility. The phase diagrams of the system gelatine-methylcellulosewater are asymmetric, which opens the possibility of gelatine solutions being concentrated by the membranefree osmosis.

' This is a point of the binodal whose tangent is the locus of points corresponding to the compositions of mixtures with the same amount of solvent.

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