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AssigneeHenkel Kommanditgesellschaft auf Aktien
InventorsAlfred Struve, Frank F. Hill, Joachim Schindler
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This invention relates to a process for the preparation of a concentrate containing sterol compounds of natural origin, which concentrate is suitable as a starting material for the transformation of sterol compounds by fermentation, which comprises the steps of: (a) transesterifying distillation residues from the processing of natural fats and/or oils with a lower alcohol; and (b) subjecting the product of step (a) to molecular distillation to produce a main fraction having a content of up to about 50 percent by weight of sterol compounds. The invention also relates to sterol concentrates produced thereby and their transformation to valuable secondary products.
A process for the preparation of a concentrate containing sterol compounds of natural origin, which concentrate is suitable as a starting material for the transformation of sterol compounds by fermentation, which comprises the steps of:
Sterol concentrates obtained by distillation of residues of fat processing after transesterification with methanol and having a saponification number of 50 to 170 and an OH-number (unsaponified) of 40 to 150, comprising up to about 50 percent by weight of sterol compounds, up to about 50 percent by weight of methyl esters of hydroxylated and non-hydroxylated, fatty acids and small amounts of partial glycerides.
Dependencies are inferred from the claim text.