Changes in composition of cottonseed during development and ripening

Abstract

Abstract Analyses have been made of cottonseed ( Gossypium hirsutum ) at different stages of maturity after flowering, and the results have been recorded in tables and graphs. It is seen that no appreciable oil develops in the seed until about the 35th day, when it increases rapidly; the carbohydrates decrease over this period. The oil as first formed is highly acidic, and contains much unsaponifiable matter, although the composition of the fatty acids remains practically constant over this period. The protein and ash contents increase steadily more or less in proportion to the weight of seed, but the crude fibre shows a sharp increase shortly before full maturity is reached. The immature seeds yield oil which does not respond to the Halphen test.