The formation of cross-related pectin matrices on the base of physiologically active polysaccharides opens up new prospects for their application in medicine. The purpose of the study was to identify pectin gels that could retain the drag in an artificial gastric environment and did not have a cytotoxic effect. Here, pectins of apple, hogweed, thistle, rowan and lupine as well their gels were investigated. Pectin-gel granules were produced from 4% solutions of the pectins by ionotropic gelling. A metabolic activity of human cell cultures was evaluated in MTT test. The pectins at concentrations of less than 2 mg/mL were shown to be no cytotoxic. Pectin gels slightly reduced the metabolic activity of cells. The content of mesalazine in the gels and its releasing were evaluated by liquid chromatography-mass spectrometry method. Among pectines investigated, gel granules of lupine pectin retained the mesalazine most effectively. On the base of the results, one can consider the pectin polysaccharides of lupine as potential gel matrices for oral drag delivery systems.
gel, pectins, HEK293, Caco-2, 5-aminosalicylic acid, gastric solution, chromatography-mass spectrometry