Design and Development of Ultra-Sensitive Multi-Task Thermal Analyzer Applicable to Various Food Components

适用于多种食品成分的超灵敏多任务热分析仪的设计与开发

• 批准号: 09356003
• 负责人: TAKAHASHI Katsutada
• 金额: $ 15.68万
• 依托单位: Osaka Prefecture University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (A)
• 财政年份: 1997
• 资助国家: 日本
• 起止时间: 1997 至 1999
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-09356003/
• 关键词: adiabatic DSC; gel DSC; dilute solution DSC; protein physics; thermal denaturation; polysaccharide gels; thin-film thermopiles; heat capacity measurement; DSC; ゲル用DSC; タンパク質; 多糖類; 超高感度DSC; ミクロ熱電対; 比熱測定

Manufacturing of thin-film thermopiles was successfully done by means of vacuum-spattering method. However, it turned out that they have a high electric resistance and are easily broken when they are placed to fix on a material surface with curvature. For this reason, their employment as a sensor for the thermal analyzers to be developed in the present research project had to be given up. In return, micro-thermopiles prepared under the microscope by an ordinary method was employed and a high sensitive adiabatic DSC was successfully developed.At the same time, in order to derive the thermodynamic parameters from observed DSC signals, an algorithm was developed and the computer software for leading these thermodynamic parameters was constructed.It was concluded that the developed system can be applicable for the quantitative characterization of various food components.

采用真空溅射法成功制备了薄膜热电堆。然而，事实证明它们具有高电阻，并且当将它们固定在具有曲率的材料表面上时很容易破裂。因此，必须放弃将它们用作本研究项目中要开发的热分析仪的传感器。反过来，采用普通方法在显微镜下制备的微型热电堆，成功开发了高灵敏度绝热DSC。同时，为了从观察到的DSC信号中推导出热力学参数，开发了一种算法并构建了引导这些热力学参数的计算机软件。结果表明，所开发的系统可用于各种食品成分的定量表征。