Chemical constituents of lipids from filter cake and sugar cane rind

Abstract

The crude lipids extracted from filter cakes of 4 refined sugar factories by n-hexane were 5.3-17.8%. There were 5 substances isolated from the lipids, a mixture of long chain aliphatic hydrocarbons (C [subscript]24-C [subscript]35), a mixture of long chain aliphatic aldehydes (C [subscript]22-C [subscript]34), a mixture of steroids (campesterol, β-sitosterol, stigmasterol), a mixture of long chain aliphatic alcohols (C [subscript]26-C [subscript]35), and a mixture of long chain aliphatic carboxylic acids (C [subscript]24-C [subscript]34), The mixture of long chain alcohols was the major composition, especially triacontanol (C [subscript]30H [subscript]61OH). The comparative chemical constituents of 3 varieties of sugar cane rinds (F147, F153 และ Q83) showed that the lipid content of F153 variety was nearly two times more than the lipid content of both F147 and Q83 varieties. Kojic acid, a mixture of long chain hydrocarbons (C [subscript]25-C [subscript]35), a mixture of long chain acids (C [subscript]22-C [subscript]34), a mixture of long chain aldehydes (C [subscript]23-C [subscript]34), a mixture of long chain alcohols (C [subscript]25-C [subscript]35) and steroids (unidentified) were isolated from the lipids. The mixture of long chain alcohols, especially triacontanol, was the major substance of all 3 varieties and the second major isolated substance was the mixture of long chain aldehydes in the F153 and Q83 varieties while the mixture of long chain acids was the second major substance in F147 variety. All 3 varieties contained small amount of hydrocarbons and trace of steroids. The comparative analytical data of each isolated substances from various filter cakes and sugar cane rinds were reported and the utilization of them were discussed.