Method for the preparation of conjugated linoleic acid
OwnerCsilla Dianóczki, Jozsefne Kovari +3inventors
InventorsCsilla Dianóczki, Jozsefne Kovari, Lajos Novak, Laszlo Poppe, Katalin Recseg
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Abstract
Methods are disclosed for the preparation of conjugated linoleic acid from linoleic acid-containing starting material(s) by alkali isomerization in apolar solvents. According to one of the method variations, the apolar solvent is an apolar aprotic solvent and an alkali metal alcoholate is used as base. In the other method variation a long chain alcohol of 6-20 carbon atoms is used as solvent, an alkali metal hydroxide or an alkali earth metal hydroxide or an alkali metal alcoholate is used as base, and the isomerization is carried out at 100-170° C.
Claims23
A method for the preparation of conjugated linoleic acid from at least one linoleic acid-containing starting material by alkali isomerization, comprising:
- treating the at least one linoleic acid-containing starting material with a base, wherein as solvent, at least one of an apolar aprotic solvent and a mixture of apolar aprotic solvents is used and as base, an alkali metal alcoholate is used.
A method for the preparation of conjugated linoleic acid from at least one linoleic acid-containing starting material by alkali isomerization, comprising:
- treating the at least one linoleic acid-containing starting material with a base, wherein as solvent, at least one of a long chain alcohol containing 6-20 carbon atoms and a mixture of long chain alcohols containing 6-20 carbon atoms is used, and as base, at least one of an alkali metal hydroxide, an alkali earth metal hydroxide and an alkali metal alcoholate is used, and wherein the isomerization is carried out at 100-170° C.
Dependencies are inferred from the claim text.