Title: The Oil: Gossypol Ratio of Cottonseeds and its Possible Effect on the Refining Loss of Crude Cottonseed Oil
Abstract:'lbe gossypol content of crude cottonseed oU Is dependent upon two factors: (1) the amount of gossypol in the seeds from which the oU is expressed. and, (2) the condition under which the seeds are hea...'lbe gossypol content of crude cottonseed oU Is dependent upon two factors: (1) the amount of gossypol in the seeds from which the oU is expressed. and, (2) the condition under which the seeds are heated at the oll-m1ll previous to pre..c:sing out the oU. Heating the moist seeds for long periods destroys gossypol and alters its solubility such that only a small amount ftnds its way into the crude oil.! Royce and Llndsey2 have shown that the alkali refining loss of certa1n grades of crude cottonseed oU may be reduced 1 to 3 per cent by the addttion of tractional percentage amounts of gossypol. This property of gossYPOl which produces a good break in the reftnlng process, is attributed to the reaction of gossypol with naturally occurring protein degradation products which act as emulsifYing agents. It might be reasoned thererore that crude oU of high gossypol content w1ll have a lower refining loss than oU of low gossypol content. Determinations have been made of the gossypol and oil content of cottonseeds (Oklahoma Triumph 44 Varlety) produced under different fert1l1zer treatments in various sections of Oklahoma during three years. The results are shown in Table I. Since the cotton plNlt blooms over an extended period of time samples of mature seeds from an entire plant will include some seeds that developed early and others that developed late in the season. Cottonseeds as they are received at the oil-mlli w1ll include these early and late matured seeds and a certain amount of seed which, due to drought or other adverse growing conditions, Is undeveloped and immature. To determine whether or not the gossypol and oil content varied with time at development, collections ot seed were made trom early developed bolls by selecting tully matured bolls which were close to the ma1n stem and near the base of the plant; those which formed at the end ot the branches and near the top of the plant were taken as representing late development. To obtain equally representative samples the same number of boDs, usually • or 6, were taken trom the top of the plant as were taken from the bottom. The effect of under nutrition on the development of gossypol and oU om the seed was determined by selecting bolls from poorly developed plants II'OwinI In parts of the field subject to considerable erosion and where vegetative IlOwth bad been markedlY retarded. 'I11ese were 00talDed the 1lrst two years from test plots on and adjacent to the experiment atatloo farm and in the last Je&1' from s1m1lar plots located a few mllesRead More
Publication Year: 2015
Publication Date: 2015-01-13
Language: en
Type: article
Access and Citation
AI Researcher Chatbot
Get quick answers to your questions about the article from our AI researcher chatbot