Optimizzation of Ultrasound-assisted Extraction of Ursolic Acid from Plantago asiatica L. by Response Surface Methodology
KONG Tao，FAN Jie-ping*，HU Xiao-fang，CAO Jing，ZHANG Lu，TONG Sheng
FOOD SCIENCE . 2011, (6): 80 -84 .  DOI: 10.7506/spkx1002-6630-201106018