Effects of ultrasonic-assistant extraction parameters on total flavones yield of Selaginella doederleinii and its antioxidant activity
Shuang Li1, 2, Ronghua Zhu1, Ming Zhong1, Yuping Zhang1, Kelong Huang1*, Xu Zhi1 and Shuting Fu1
1College of Chemistry and Chemical Engineering, Central South University, Changsha, Hunan 410083, P.R .China.
2Guilin Institute for Food and Drug Control, Guilin, Guangxi 541002, P.R. China.
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