Elimination of the halphen response of cottonseed oils in conjunction with deodorization |
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Authors: | P H Eaves H P Dupuy L L Holzenthal E T Rayner L E Brown |
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Affiliation: | (1) Southern Regional Research Laboratory, 70119 New Orleans, Louisiana |
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Abstract: | Two simple but effective pilot-plant processes were developed to produce Halphen-negative cottonseed oil. Both involve treatment
of the oil with cottonseed fatty acids in a conventional batch type of deodorizer in conjunction with deodorization. In one
process, in which the acids were added to the oil, the cyclopropenoids were inactivated in as short a time as 5 min after
the oil reached the maximum temperature of 450–455 F. In the other, in which the acids were generated in situ, the oil did
not become Halphennegative until about an hour and 45 min after it reached maximum temperature. The excess acids produced
by both methods were readily removed during conventional deodorization. In contrast, deodorization alone reduced the cyclopropenoid
content of the oil to a low level (0.02%) but did not render it Halphen-negative even after 3 hr at maximum temperature.
These new processes are directly applicable for use by refineries that have the batch type of deodorizers. For refineries
that operate continuous or semicontinuous deodorizers, it should be relatively simple to design preheating vessels or heat
exchangers to inactivate partially or completely the cyclopropenoids before deodorization.
Presented at the AOCS Meeting, New Orleans, May 1967.
So. Utiliz. Res. Dev. Div., ARS, USDA. |
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