Study on the solvent transportation behavior from mechanically constrained agarose gels

2015 Fiscal Year Final Research Report

• Project/Area Number: 25410231
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Polymer/Textile materials
• Research Institution: Rakuno Gakuen University
• Principal Investigator: KANEDA Isamu 酪農学園大学, 農食環境学群, 教授 (30458129)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Keywords: アガロース / 溶媒輸送 / 圧縮変形 / グリセリン / ショ糖

Outline of Final Research Achievements

The solvent transportation behavior from mechanically constrained agarose gels was studied. The compression load and the volume of the agarose gels decreased with time during compressive restraint. The decrease in volume was induced by squeezing of the solvent from the gel by compressive restraint. Relaxation of the compression load and the decrease in volume of the gels could be analyzed using a stretched exponential function; moreover, interestingly, both time constants were coupled. The effect of glycerol and sucrose on the solvent transportation behavior of mechanically constrained agarose gels was also studied. Both time constants increased with an increase in glycerol and sucrose concentration. These results indicate that glycerol and sucrose changes the gel network structure, and this is confirmed by other experimental evidences which obtained by using electro-microscopy.

Free Research Field

食品物性学、レオロジー