Valio Ltd.

Aalto University Foundation

Marjatta Vahvaselkä

Simo Laakso

Ossi A Pastinen

Tarja Suomalainen

Annika Mäyrä-Mäkinen

Soile Tynkkynen

Sanna Hokkanen

Auli Rainio

The present invention concerns a process for forming a fatty acid, a fatty acid ester or a mixture thereof from a soap-comprising starting material, in which process a metal-ion forming agent is added to the starting material, whereby a mixture is formed, which contains an insoluble phase and a liquid phase, the insoluble phase is separated from the liquid phase, and an acid is added into the insoluble phase to form a fatty acid, or a monohydric alcohol and an acid catalyst are added to form a fatty acid ester, whereby two phases are formed, an aqueous phase and an organic phase, or, first, an acid is added and then a monohydric alcohol and an acid catalyst are added into at least a portion of the formed fatty acid to esterify the fatty acid.

Production of fatty acid and fatty acid ester

The invention relates to a method for preparing conjugated linoleic acid and particularly its cis-9,trans-11 isomer from linoleic acid by fermentation. The invention also relates to products prepared by the method.

Method for preparing conjugated linoleic acid

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Helsinki, Finland

Marjatta Vahvaselkä