Abstract
ABSTRACTA modified filter funnel apparatus was used to determine mass flow velocities for extraction of uncooked glanded cottonseed flakes, and the results were compared with a continuous pilot‐plant‐scale extractor. A mass velocity of 2,000 lb/hr/ft2 or higher (considered adequate for oilseed extraction) was obtained in all cases. Both the initial meat moisture before flaking and the flake moisture during extraction were found to affect the mass velocity. A meat moisture before flaking of less than 9% decreased the mass velocity, probably as a result of increased fines and thus smaller flake size. A high flake moisture (about 9%) during heated‐hexane extraction caused a decrease in mass velocity compared to that of lower‐moisture flakes. The correlation of filter‐funnel mass velocity data to a continuous pilot‐plant extractor confirmed that uncooked flakes can be satisfactorily extracted to yield low residual lipids by using a low solvent‐to‐flake ratio and ambient‐temperature hexane solvent.
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