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Removal of Arsenic Using a Cationic Polymer Gel Impregnated with Iron Hydroxide
Published on: June 28, 2019
Preparation and characterization of a novel Astragalus membranaceus polysaccharide-iron (III) complex
Qi Lu1, Lei Xu1, Yongbin Meng1
1Engineering Laboratory of Bio-Resource Eco-Utilization, Northeast Forestry University, Harbin 150040, China; Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin 150040, China.
Abstract:
Astragalus membranaceus polysaccharide-iron (III) complex (APS-iron) was synthesized and characterized. Based on single factor and response surface optimization experiments of APS-iron (III) complex synthesis, the optimum conditions of APS-iron (III) complex were obtained as follows: the reaction temperature 89.46°C, pH 8.16, reaction time 46.04min and ratio of catalyst to APS 0.75, respectively. The reaction temperature was the most significant factor, followed by pH, reaction time and the ratio of catalyst to APS in the four reaction parameters. The highest iron content (19.32%) of APS-iron (III) complex was obtained at the optimum conditions, which was characterized by fourier transform infrared (FTIR), scanning electron microscopy (SEM), antioxidant activities of the APS-iron (III) complex and iron release of APS-iron (III) complex in vitro assay. The results indicated the APS-iron (III) complex had good bioavailability and antioxidant activities in vitro assays. So, it was potential for APS-iron (III) complex as a candidate for iron supplements.
