FIELD: chemistry.
SUBSTANCE: invention relates to production of trans-fucoxanthinol from crystalline fucoxanthin. The latter comprises application of lipase extracted from swine pancreas. Fucoxanthin is dissolved in ethanol to complete dilution. Albumin and calcium chloride are added to said solution to hold the mix for 5-10 hours at the following ratio of components, g: crystalline fucoxanthin 10%-solution - 0.8-8.0, lipase extracted from swine pancreas - 0.01-0.5; 4%-solution of calcium chloride - 1.0-10.0, albumin - 0.01-0.1, phosphate buffer - 105-525.
EFFECT: perfected process.
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