Khunna Sombat namman lae sanphit nai namman malet fai Thai.
1984
Prateungsri Sinchaisri | Lolita Meksongsee
Oil content between 18.8 and 21.9% and depended on variety, location and environmental factors. Highest oil content(21.9%) was recoRDed in the variety L-142-9M-358-111. Properties of the oil included a dark brown colouration; specific gravity and efractive index of 0.9191 and 1.4804 respectively, at 25 C; free fatty acid level of 1.50; an iodine number of 104.32 and saponification value of 197.84. Cottonseed oil was found to have a high level of unsaturated fatty acids(70%)of which linoleic acid was the major component(50%). Free gosspol content averaged 0.70% but ranged from 0.33% to 1.09%, the variety BD 1016-13 having the lowest level and RD 1017-7 the highest. In an independent study using cottonseed oil extracted commercially from a number of varieties, an initial gosspol content of0.72% was able to be reduced to below the 0.03% safety level as result of heat treatment under vacuum during the refinery process which consisted of neutralization, bleaching and deodorization.
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