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Cottonseed colour fixed pigments. Part III. Prevention of colour fixation and removal of colour-fixed pigments

✍ Scribed by Attia, M. ;Abbasy, M. ;El-Nockrashy, A. S. ;Shoeb, Z. E.

Publisher
John Wiley and Sons
Year
1981
Tongue
English
Weight
394 KB
Volume
25
Category
Article
ISSN
0027-769X

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✦ Synopsis

Abstract

Gossypol‐oil solution and colour‐fixed oil prepared therefrom are treated with ethanolamine, p‐aminobenzoic acid, urea, and acetic acid. The efficiency of the four additives in removal of gossypol and colour fixed pigments is examined. Ethanolamine and p‐aminobenzoic acid at 0.5 and 1.0% levels of the oil weight result in complete removal of gossypol and superior oil‐colour. The treated oils do not show any sign of colour reversion when subjected to conditions of accelerated storage.

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