Agronomy Science, przyrodniczy lublin, czasopisma up, czasopisma uniwersytet przyrodniczy lublin
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Vol. 59 No. 1 (2004)

Articles

Rheological properties of WPI gels made by direct salt addition

  • Paweł Glibowski
  • Stanisław Mleko
  • Waldemar Gustaw
  • Ewa Chełstowska
Submitted: June 4, 2020
Published: 2004-03-24

Abstract

The effect of protein and sodium chloride was studied by analyzing the rheological and textural properties of the gel. The one-stage and two-stage heating process was used. The first step was carried out at pH 8. Disulfide bonds connected the protein molecules. In the second step carried out at pH 7 noncovalent bonds were formed. Increasing NaCl and protein concentration increased gel strength. Two-stage heating process increased gel strength at lower protein concentrations (6%) regardless of NaCl concentration. The gel was harder at low sodium chloride concentration (up to 150 mmol) regardless of protein concentration.

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