Premium
Lysine, gossypol, and nitrogen solubility in chemically treated cottonseed meals
Author(s) -
King W. H.,
Kuck J. C.,
Frampton V. L.
Publication year - 1962
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/bf02633354
Subject(s) - gossypol , solubility , cottonseed meal , chemistry , cottonseed , solvent , lysine , nitrogen , extraction (chemistry) , aqueous solution , chromatography , solvent extraction , nuclear chemistry , organic chemistry , biochemistry , food science , amino acid , soybean meal , raw material
Abstract The effects of treatment of commercial prepress‐solvent extracted and direct‐solvent extracted cottonseed mares with several chemical agents and solvents were studied. The analytical results for 舠free舡 and 舠total舡 gossypol of the finished meals show that treatment with aliphatic amines, followed by extraction with a suitable solvent, removed large proportions of the 舠free舡 as well as 舠bound舡 gossypol. This reduction of 舠free舡 and 舠bound舡 gossypol was accompanied, in some experiments, by an increase in the nitrogen solubility and available lysine, as compared with the results obtained with the untreated air‐dried marcs. The available lysine contents of the treated mares was significnatly correlated with the nitrogen solubility in 0.02 N aqueous NaOH.