Ultrasonic-assisted Ethanol Extraction and Antioxidant Activity of Total Flavonoids from Equisetum ramosissimum Desf. Grown in West Hunan
ZHANG Jun-sheng，CHEN Li-hua，ZHANG Wen-long
FOOD SCIENCE . 2011, (16): 71 -75 .  DOI: 10.7506/spkx1002-6630-201116015