The effects of concentration and heating-cooling rate on rheological properties of Plantago lanceolata seed mucilage

Int J Biol Macromol. 2018 Aug:115:1260-1266. doi: 10.1016/j.ijbiomac.2017.10.102. Epub 2017 Oct 17.

Abstract

In this study, the effect of concentration (0.5, 1, 1.5 and 2%) and heating-cooling rate (1, 5 and 10 °C min-1) on the rheological properties of Plantago lanceolata seed mucilage (PLSM) solutions were investigated. It was observed that the gum dispersions exhibited viscoelastic properties under the given conditions. Mechanical spectra of PLSM were classified as weak gels based on the frequency sweep, complex viscosity (η*) and tan δ results. All variables had significant impacts on the rheological parameters. Chemical and monosaccharide compositions were also determined to provide more structural information. The results revealed that PLSM had high total sugar content (87.35%), and it is likely an arabinoxylomannan-type polysaccharide.

Keywords: Plantago lanceolata seed mucilage; Rheology; Sugar composition.

MeSH terms

  • Hot Temperature*
  • Plant Mucilage / chemistry*
  • Plantago / chemistry*
  • Rheology*
  • Seeds / chemistry*

Substances

  • Plant Mucilage