Increased antioxidant activity and improved structural characterization of sulfuric acid-treated stepwise degraded polysaccharides from Pholiota nameko PN-01

Lan Zheng, Yaohong Ma, Yunjuan Zhang, Qingjun Meng, Junhui Yang, Binglian Wang, Qingai Liu, Lei Cai, Weili Gong, Yan Yang, Jianguo Shi