FIELD: chemistry.
SUBSTANCE: method of producing arabinogalactan involves using raw material in form of dihydroquercetin production wastes which are in form of larch wood chips extracted with ethylacetate, which are then dried and extracted with water at temperature 80-90°C. The obtained extract is purified by filtration and concentrated to not less than 20% dry substances. The product is precipitated from the filtered concentrate by mixing with an organic water-soluble solvent - salting out agent in form of dioxane, taken in a volume equal to the volume the arabinogalactan concentrate.
EFFECT: use of an organic solvent - salting out agent in a volume equal to volume of the arabinogalactan concentrate, cutting on consumption of the salting out agent and, consequently, thermal power consumption for its generation.
2 ex
| Title | Year | Author | Number |
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