Selective fixation of deleterious phosphatidic and pigment materials in commercial processing to improve quality of cottonseed oil and meal

Abstract

SummaryPlant operating‐procedures and laboratory controls were set up to evaluate the quality of meal and oil which could be produced through each stage of commercial, prepress‐solvent‐extraction processing. By altering conventional, prepress‐solvent‐processing conditions and by increasing moisture during cooking and adding granular soda ash after cooking meats, cottonseed meal rations can be produced which are comparable in feed efficiency to soybean meal rations and satisfactory for feeding laying hens in amounts up to 10% of the total weight of the ration with no egg‐yolk discoloration and crude cottonseed oils with low F.F.A. and light color can be produced which refined to low Lovibond colors and with ferining losses approximating the chromatographic loss when miscella refined within minutes after separation from the source material with the exclusion of air and light.

Egg Tested Cottonseed Meal

“…They further stated that the nutritive value of such eggs is probably not impaired in any way, but their appearance makes them unsalable. Work has been done by Schaible et al (1934), Heywang et al (1954), , Cavanagh (1957b) and Dechary et al (1957) to eliminate the components in cottonseed meal which have a deleterious effect when included in rations of non-ruminants and poultry. Wamble (1958) and Evans et al (1957) also reported the progress made in eliminating the color problems in stored eggs previously associated with cottonseed meal in the rations of laying hens.…”