Dewatering of Agar-agar Gels Containing Sucrose by Mechanical Compression.

DOI Web Site 2 Citations 11 References
  • NAKAKURA Hideo
    Department of Applied Chemistry and Chemical Engineering, Yamaguchi University
  • NAKATAKE Takashi
    Department of Applied Chemistry and Chemical Engineering, Yamaguchi University
  • SAMBUICHI Masao
    Ube National College of Technology
  • OSASA Kunihisa
    Department of Applied Chemistry and Chemical Engineering, Yamaguchi University

Bibliographic Information

Other Title
  • ショ糖を含む寒天ゲルの定圧圧搾脱水
  • ショ トウ オ フクム カンテン ゲル ノ テイアツ アッサク ダッスイ

Search this article

Description

The dewatering process of agar-agar gels comntaining sucrose was experimentally investigated by using a compression-permeability cell. The gels used in the present study were agar-agar bulk gels prepared from agar-agar sols by adding powdered sucrose. The bound water in the gel matrix was quantitatively evaluated by measuring the electrical conductivity of the agar-agar gels containing sucrose. The maximum bound water contents was obtained at the sucrose concentration of cs=20 wt. %, where the bound water content corresponded to 2.0-fold mass ratio of the dry gel solid. The dewatering process of agar-agar gels containing sucrose by mechanical compression could be reasonably analysed as a cake filtration period followed by a consolidation period. Both average specific filtration resistance αav, and modified consolidation coefficient Ce were well correlated with applied pressure p and viscosity of sucrose solution μ. It is essential to take into account the bound water content in the analysis of the expression process for agar-agar gels containing sucrose.

Journal

Citations (2)*help

See more

References(11)*help

See more

Keywords

Details 詳細情報について

Report a problem

Back to top