TY JOUR TI INCREASE IN EXTRACTION OF ASCORBIC ACID IN THE FIELD OF LOW-FREQUENCY MECHANI CAL FLUCTUATIONS KW Ascorbic acid KW Schisandra chinensis KW Sorbus aucuparia L KW extraction KW extractor with a vibrating plate JO Food Processing: Techniques and Technology AU Mustafina, A.S. AU Sorokopud, A.F. AU Fedyaev, K.S. PY 2013 IS 29 PB Kemerovo State University