Premium
Gaseous ammonia as a refining agent for cottonseed oils
Author(s) -
Zeitoun M. A.,
Harris W. B.,
Harris W. D.
Publication year - 1963
Publication title -
journal of the american oil chemists' society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.512
H-Index - 117
eISSN - 1558-9331
pISSN - 0003-021X
DOI - 10.1007/bf02633691
Subject(s) - refining (metallurgy) , cottonseed oil , ammonia , chemistry , cottonseed , pulp and paper industry , solubility , hexane , chromatography , food science , organic chemistry , engineering
In this investigation the application of gaseous ammonia to cottonseed oil refining was explored. The ammonia reacted quantitatively with the free fatty acids in the oil; its solubility in coftonseed oil was determined as a function of pressure. In 舠degumming舡 it was more efficient in removing phosphatides than other agents. A reduction in refining loss resulted for oils refined with gaseous ammonia as outlined and compared with the standard AOCS cup loss analysis. However, the oil colors were substantially higher even though the ammonia treated oils were re‐refined with caustic solution. Results using cottonseed oil‐hexane 舠miscellas舡 containing less than 70% oil showed low refining losses, but the colors were estremely high. Above 70% oil content the losses were higher, but the colors were lower. The colors never equalled 舠standard cup舡 results.