Effects of Cooling Rate and Sodium Chloride on Polysaccharide Gelation

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概要

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• The effects of cooling rate and 0.1∼0.5% sodium chloride (NaCl) on the gelation of 0.8% agar, gellan gum and κ-carrageenan solutions were investigated based on the storage modulus and by differential scanning calorimetry (DSC). Each polysaccharide solution without NaCl had higher values of equilibrium storage modulus at a slow cooling rate than at a rapid cooling rate. However, the enthalpy calculated from the area surrounded by a DSC curve and the base line was not influenced by the cooling rate. The gelation temperature of each polysaccharide solution was elevated and the effect of NaCl addition on the storage modulus of gellan gum and κ-carrageenan was intensified by slowing the cooling rate. Each aggregated molecule core might grow independently at a rapid cooling rate and the formation of network structure of gellan gum and κ-carrageenan at a slow cooling rate might be affected by intermolecular repulsion.

• 社団法人　日本食品科学工学会の論文
• 2007-11-01

著者

• KUBOTA KENJI

  Department of Nursing, School of Allied Medical Science, Nagasaki University

• Kubota Kenji

  Department Of Biological And Chemical Engineering Gunma University

• Kubota Kenji

  Department Of Biological And Chemical Engineering Faculty Of Engineering Gunma University

• TAKAHASHI Mami

  Department of Ophthalmology, Kanazawa University Graduate School of Medical Science

• Takahashi Mami

  Department Of Food Science And Nutrition Showa Women's University

• MORITAKA Hatsue

  Department of Food Science and Nutrition, Showa Women's University

• Moritaka Hatsue

  Department Of Food Science And Nutrition Showa Women's University

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