FIELD: feed production. SUBSTANCE: method involves grinding of coniferous raw material; extracting ethereal oils and separating coniferous extract; subjecting raw material to slow heating with water steam at temperature of 100-115 C and pressure of 0.05-0.1 atm for 16 hours after charging thereof; increasing temperature to 125 C and rising pressure to 0.5 atm; separating coniferous extract - biologically active additive of ethereal oils and resin. Additive production process lasts for 38-48 hours. EFFECT: increased efficiency in producing Pintex additive by more complete extraction of raw material. 2 tbl, 4 ex
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Authors
Dates
2003-11-20—Published
2001-08-14—Filed