FOOD SCIENCE ›› 2005, Vol. 26 ›› Issue (12): 128-131.

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Synthesis of Maltosyl(α-1→6)β-cyclodextrin through the Reverse Reaction of Pullulanase

 CUI  Bo, JIN  Zheng-Yu   

  1. School of Food Science and Technology, Southern Yangtze University
  • Online:2005-12-15 Published:2011-10-01

Abstract: Maltosyl(α-1→6)β-cyclodextrin was synthesized from maltose and β-cyclodextrin, by using Bacillus acidopullulyticus pullulanase.The reaction product was determined by HPLC, IR and paper chromatography. Mal-β-CD has been separated by paper chromatography. The factors which affect the formation of Mal-β-CD have been studied and the optimum conditions were got as follows: 200Ugβ-CD of enzyme, molar ratio of maltose to β-CD as 12:1, a substrate concentration of 80%~85%, the pH of reaction mixture as 4.5, reaction temperature at 70℃ and reaction time 60 hours.

Key words: maltose, β-cyclodextrin, maltosyl(α-1→6)β-cyclodextrin, pullulanase