This study examined the application of few-stages aqueous extraction of mucilage from whole flaxseed.
Key processing conditions included temperature (40e100 C), duration (0e60 min), seed to water ratio
(1 to 5e30) and mixer rotational speed (0e240 revolutions per minute). It was found, that mucilage
extraction from flaxseed is appropriate to carry out without swelling. The maximum yield of flaxseed
mucilage was obtained at 80 2 C with seed to water ratio of 1 to 25. The equation, which described
equilibrium solid yield during the extraction depending on the phases’ ratio and the temperature, was
found. The equation of solid yield depending on duration and mixer rotational speed under the
temperature of 80 2 C and the seed to water ratio of 1 to 25 was determined. It was showed, that the
use of stirring is not expedient for the intensifying the process. The rational duration of extraction under
the selected parameters was 30 1 min. To increase the solid content in the extract the few-stages
extraction was applied. The three-stage countercurrent extraction of flaxseed mucilage from whole
seeds under the temperature of 80 2 C, the seed to water ratio of 1 to 25, the duration of each stage of
30 1 min was established to receive flaxseed mucilage extract with content of solids from 0.70 to 0.72%,
i.e. to extract from 98.3 to 99.1% of mucilage from flaxseed.