Processing, Analysis and Utilization of Rubber (Hevea brasiliensis) seed oil & cake
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TextSubject(s): Summary: Three processing methods for obtaining rubber seed oil solvent extraction, expression and rendering were studied. The results showed that solvent extraction was better than expression method followed by rendering in terms of efficiency of oil recovery. A combination of expression and solvent extraction was recommended. Chemical analysis of the seed showed that the seed without shell contains 42.63;oil, 22.30;protein, 23.39;carbohydrates, 4.31;fibre and 3.5;minerals. The cake after oil extraction contained 29.36;protein, 56.57;carbohydrate, 4.20;fibre and 2.90;minerals. The seed oil is a semidrying oil with the following properties sp.gr 0.9185, Refractive Index 1.4, iodine value 145.80, Saponification value 192.20, unsaponifiable matter 1.14;, FFA 15.45, moisture and volatile matter 4.30 and Dirt 0.30. The oil contains 20;Saturated FFA, 23;Oleic, 32.5;Linoleic and 22.5;Linolenic. The oil is similar to linseed oil and can partly replace linseed oil in industrial processes. The seed cake contains tolerable quantities of cyanogenic glucoride and can be used as livestock concentrate after drying and toasting.
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Three processing methods for obtaining rubber seed oil solvent extraction, expression and rendering were studied. The results showed that solvent extraction was better than expression method followed by rendering in terms of efficiency of oil recovery. A combination of expression and solvent extraction was recommended. Chemical analysis of the seed showed that the seed without shell contains 42.63;oil, 22.30;protein, 23.39;carbohydrates, 4.31;fibre and 3.5;minerals. The cake after oil extraction contained 29.36;protein, 56.57;carbohydrate, 4.20;fibre and 2.90;minerals. The seed oil is a semidrying oil with the following properties sp.gr 0.9185, Refractive Index 1.4, iodine value 145.80, Saponification value 192.20, unsaponifiable matter 1.14;, FFA 15.45, moisture and volatile matter 4.30 and Dirt 0.30. The oil contains 20;Saturated FFA, 23;Oleic, 32.5;Linoleic and 22.5;Linolenic. The oil is similar to linseed oil and can partly replace linseed oil in industrial processes. The seed cake contains tolerable quantities of cyanogenic glucoride and can be used as livestock concentrate after drying and toasting.
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