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Gelation characteristics of Mesona chinensis polysaccharide-maize starches gels: Influences of KCl and NaCl

Tipo de material: TextoTextoSeries ; Journal of Cereal Science, 96, p.103108, 2020Trabajos contenidos:
  • Luo, Y
  • Shen, M
  • Han, X
  • Wen, H
  • Xie, J
Tema(s): Recursos en línea: Resumen: An investigation was conducted into the effects of potassium chloride (KCl)and sodium chloride (NaCl)on the gelation properties of maize starch-Mesona chinensis polysaccharide (MCP)gels. Waxy maize starch (WS), normal maize starch (NS), and high amylose maize starch (HS)were used to compare the effects of different amylose contents on the gel properties of maize starch-MCP gels. The results showed that KCl and NaCl have similar effects on the gelation, rheological, and structural properties of maize starch-MCP gels. The addition of KCl and NaCl increased the pasting viscosity, breakdown values, setback values, dynamic modulus, and apparent viscosity of maize starch-MCP gels, especially for HS-MCP gels. LF-NMR (Low-field nuclear magnetic resonance)showed that salts reduced bound water content while increasing the free water content of maize starch-MCP gels. CLSM (Confocal laser scanning microscopy)results also indicated that salt can restrict the expansion and maintain the integrity of starch granules, especially for WS-MCP gels.
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An investigation was conducted into the effects of potassium chloride (KCl)and sodium chloride (NaCl)on the gelation properties of maize starch-Mesona chinensis polysaccharide (MCP)gels. Waxy maize starch (WS), normal maize starch (NS), and high amylose maize starch (HS)were used to compare the effects of different amylose contents on the gel properties of maize starch-MCP gels. The results showed that KCl and NaCl have similar effects on the gelation, rheological, and structural properties of maize starch-MCP gels. The addition of KCl and NaCl increased the pasting viscosity, breakdown values, setback values, dynamic modulus, and apparent viscosity of maize starch-MCP gels, especially for HS-MCP gels. LF-NMR (Low-field nuclear magnetic resonance)showed that salts reduced bound water content while increasing the free water content of maize starch-MCP gels. CLSM (Confocal laser scanning microscopy)results also indicated that salt can restrict the expansion and maintain the integrity of starch granules, especially for WS-MCP gels.

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