FT-IR spectroscopic analysis in monitoring of hydroxyl stretching vibrations in plant hydrogels

摘要

In recent years, some bioactive hydrogels isolated from natural sources have attracted much attention in the field of biochemistry and pharmacology. This article attempts to review the current structural and conforma-tional characterization of some importantly bioactive hydrogels isolated from following plant: Symphytum officinale, Thymus pule-gioides, Trigonella foenum-graecum L., Tussi-lago farfara L., Hyssopus officinalis, Althaea officinalis L., Equisetum arvense L. Linum us-itatissimum L. and Fucus vesiculosus L. Hydrogels are cross-linked three-dimensional polysaccharide macromolecular networks that contain a large fraction of water within their structure. FT-IR spectroscopic analysis showed a strong band at 3500-3100 cm~(-1) attributed to hydroxyl (the intermolecu-lar and the intramolecular hydrogen bonds) stretching vibrations changes.