TY JOUR TI Features of extracting of heracleum sosnowsky fruits KW Sosnowsky hogweed fruit extraction and processing time KW essential oil KW chromatographic analysis KW chemical technology KW rubber frost resistance JO From Chemistry Towards Technology Step-By-Step AU Pavlov, A.V. AU Solovyov, V.V. PY 2021 IS 2 PB Yaroslavl State Technical University