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Właściwości reologiczne żeli WPI otrzymanych przez bezpośredni dodatek soli
oleh: Paweł Glibowski, Stanisław Mleko, Waldemar Gustaw, Ewa Chełstowska
Format: | Article |
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Diterbitkan: | University of Life Sciences in Lublin - Publishing House 2004-03-01 |
Deskripsi
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.