Structural Features of Alkaline Extracted Polysaccharide from the Seeds of Plantago asiatica L. and Its Rheological Properties.

Jun-Yi Yin; Hai-Hong Chen; Hui-Xia Lin; Ming-Yong Xie; Shao-Ping Nie

Polysaccharide from the seeds of Plantago asiatica L. has many bioactivities, but few papers report on the structural and rheological characteristics of the alkaline extract. The alkaline extracted polysaccharide was prepared from seeds of P. asiatica L. and named herein as alkaline extracted polysaccharide from seeds of P. asiatica L. (PLAP). Its structural and rheological properties were characterized by monosaccharide composition, methylation, GC-MS and rheometry. PLAP, as an acidic arabinoxylan, was mainly composed of 1,2,4-linked Xylp and 1,3,4-linked Xylp residues. PLAP solution showed pseudoplastic behavior, and weak gelling properties at high concentration. Sodium and especially calcium ions played a significant role in increasing the apparent viscosity and gel strength.

POLYSACCHARIDES; ALKALINE solutions; METHYLATION; MONOSACCHARIDES; SODIUM

Molecules, 2016, Vol 21, Issue 9, p1181

1420-3049

Academic Journal

10.3390/molecules21091181