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Gossyverdurin: A newly isolated pigment from cottonseed pigment glands
Author(s) -
Lyman C. M.,
ElNockrashy A. S.,
Dollahite J. W.
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/bf02822469
Subject(s) - gossypol , pigment , cottonseed , silicic acid , absorption (acoustics) , chemistry , chromatography , biochemistry , organic chemistry , food science , materials science , composite material
The constituents of cottonseed pigment glands were fractionated by the use of column chromatography with DEAE cellulose ion exchanger and silicic acid, and a new green pigment was isolated. The acute oral toxicity of the new pigment was determined using rats as experimental animals. The LD‐50 value obtained was 0.66 g/kg of body weight indicating that the new pigment which was named gossyverdurin is the most toxic of any cottonseed pigment so far reported. Gossyverdurin showed absorption maxima at 250, 370, and 560 mॖ. Reaction with para‐anisidine under the conditions used for the determination of gossypol gave an absorption peak similar to that obtained with gossypol indicating that the new compound is structurally related to gossypol. In addition a second peak at 342 mॖ appears on reaction with para‐anisidine indicating important structural differences between gossypol and gossyverdurin.