Comparable studies of two polysaccharides from leaves of Acanthopanax senticosus: Structure and antioxidation

Two pectin-polysaccharides, ASP-B2 (Mw, 5.32 kDa) and B3 (Mw, 30.51 kDa), were obtained from Acanthopanax senticosus leaves. An HILIC-UPLC-ESI--HCD-MS/MS technique was introduced for structural elucidations of skeletal structure of pectin-polysaccharides in addition to empolying SEC-MALLS, GC-MS, UPLC-ESI+-MS, methylation analysis, FT-IR and NMR methods. Skeletal structure of ASP-B2 was characterized by combining HG smooth region and RG hairy...