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A Direct Hexane Extraction Process for Glanded Cottonseed
Author(s) -
ZIEGLER G. M.,
KADAN R. S.,
FREEMAN D. W.,
SPADARO J. J.
Publication year - 1982
Publication title -
journal of food science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.772
H-Index - 150
eISSN - 1750-3841
pISSN - 0022-1147
DOI - 10.1111/j.1365-2621.1982.tb11087.x
Subject(s) - flake , moisture , extraction (chemistry) , extractor , cottonseed , solvent , hexane , funnel , chemistry , yield (engineering) , materials science , chromatography , analytical chemistry (journal) , composite material , food science , organic chemistry , process engineering , engineering
A 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/ft 2 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.