title: The effect of thermal history on the elasticity of K-type gellan gels.
abstract: Elasticity of potassium type gellan gels prepared at different thermal histories was examined using dynamic viscoelastic measurements. The storage Young's modulus E' decreased with increasing cooling rate during gelation. Once gel formation occurred, thermal history at lower temperature did not influence the elastic modulus and thermal stability of the gellan gels. On the other hand, thermal history around gelation temperature influenced strongly the elastic modulus and thermal stability of resulting gels. When the gellan solution was kept for a certain time before cooling at a temperature near the gelation temperature, it was found that gels with higher elastic modulus and thermal stability were formed.
authors.affiliation: Graduate School of Health and Welfare Science, Okayama Prefectural University, 111 Kuboki, Soja-shi, Okayama 719-1197, Japan. Electronic address: nitta@fhw.oka-pu.ac.jp.
authors.forename: Yoko
authors.initials: Y
authors.lastname: Nitta
authors.affiliation: Glyn O.Phillips Hydrocolloids Research Centre, School of Human Science and Environment, University of Hyogo, 1-1-12 Shinzaike Honmachi, Himeji, Hyogo 670-0092, Japan. Electronic address: miki@shse.u-hyogo.ac.jp.
authors.forename: Miki
authors.initials: M
authors.lastname: Yoshimura
authors.affiliation: School of Food and Pharmaceutical Engineering, Faculty of Light Industry, Hubei University of Technology, Wuchang, Wuhan 430068, PR China. Electronic address: 2872441139@qq.com.
authors.forename: Katsuyoshi
authors.initials: K
authors.lastname: Nishinari
keywords: Gelation; Gellan; Storage Young's modulus; Thermal history