Optimization of Ultrasonic-assisted Extraction Technology of Total Flavonoids from the Leaves of Ziziphus jujuba var.spinosa
Wang Ying-jin, Yu Lei, Yan Jun, He Yue, Zhang Hai-rong
Food and Fermentation Industries . 2012, (02): 229 -232 .  DOI: 10.13995/j.cnki.11-1802/ts.2012.02.017