FIELD: food-processing industry, in particular, production of additives for beverages such as brandy and for artificial wine aging.
SUBSTANCE: method involves extracting oak wood with aqueous-alcoholic solution in superhigh frequency field while periodically reliving pressure to value providing boiling of extractant and raising pressure to initial value; separating base product from liquid phase by known methods.
EFFECT: reduced process cycle time.
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Authors
Dates
2005-05-20—Published
2003-09-09—Filed