Extraction of flavonoids from Brassica napus L.bee pollen by ultrasonic-microwave synergistic method
SUN Yan, GUO Qing-xing, TONG Qun-yi
Food and Fermentation Industries . 2014, (10): 238 -244 .  DOI: 10.13995/j.cnki.11-1802/ts.2014.10.081