FOOD SCIENCE ›› 2012, Vol. 33 ›› Issue (20): 61-64.

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Synthesis of Helianthus annuuss Polysaccharide-Fe (Ⅲ) Complex

  

  • Received:2012-04-10 Revised:2012-09-06 Online:2012-10-25 Published:2012-11-09

Abstract: Objective: To optimize the synthesis of Helianthus annuuss polysaccharide-Fe (Ⅲ) complex. Methods: The effects of reaction temperature, pH, reaction time and polysaccharide-trisodium citrate ratio on the yield and Fe content of polysaccharide-Fe (Ⅲ) complex were investigated using one-factor-at-a-time method and an L9(34) orthogonal array design. Results: The optimal synthesis conditions were determined as 3:1 of polysaccharide/trisodium citrate mass ratio and pH 9 for a reaction duration of 3 h at 80 ℃. Under these conditions, the yield of Helianthus annuuss polysaccharide-Fe (Ⅲ) complex was 1.26 g/g. and its Fe content 22.82%. Conclusion: This optimal synthesis process is simple, reliable and suitable for industrial production.

Key words: Helianthus annuuss polysaccharide-Fe (Ⅲ), orthogonal array design, complex