Ultrasound-enhanced subcritical water extraction of polysaccharides from Lycium barbarum L.

Highlights: [•] The polysaccharides were extracted from Lycium barbarum L. using USWE. [•] A Box–Behnken design (BBD) was used to optimize the USWE conditions. [•] The USWE method was compared with three conventional methods. [•] The antioxidant activities against superoxides, hydroxyl radicals and DPPH were investigated. [ABSTRACT FROM AUTHOR]