Search results for: HMR-RELAXATION

• Molecular mobility of water protons under interaction with chemically modified starches. DSC and HMR-relaxation investigations

  Publication

  • A. Sergeev
  • N. Szilkina
  • L. Wasserman
  • C. Szilow
  • H. Staroszczyk

  - Fizyka Chemiczna [czas. rosyjskojęzyczne] - Year 2017

  The change of water protons mobility in the system chemically modified starches – water were investigated by DSC and NMR-relaxation methods. The amount of unfrozen water at subzero temperature as well as additional unfrozen water which appears after gelatinization have lower values for chemically modified starches in comparison with the native starch. The proton spin-spin relaxation time Т2 for chemically modified starch samples,...

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• Kinetics and mechanism of the chemically modified starches during gelatinization.

  Publication

  • A. Sergeev
  • N. Shilkina
  • L. Wasserman
  • H. Staroszczyk

  - Year 2013

  Native starch was silicated by means of microwave-assisted reactions with varying doses of reagents. Resulting products were characterized by DSC and HMR-relaxation methods. It was observed that the hydratation of the silicated starches during gelatinization decreases when compared to that of the native potato starch. The amount of unfrozen water for ungelitinizated silicated starches are less than in control samples. At the same...