食品科学 ›› 2009, Vol. 30 ›› Issue (24 ): 389-392.doi: 10.7506/spkx1002-6630-200924088

• 分析检测 • 上一篇    下一篇

基于介电特性的花生油加热及贮存过程中品质快速检测技术

何春雷1,秦 文2,*,王 政2   

  1. 1.四川农业大学园艺学院 2.四川农业大学食品学院
  • 收稿日期:2009-05-28 出版日期:2009-12-15 发布日期:2010-12-29
  • 通讯作者: 秦 文2,*, E-mail:Qinwen1967@yahoo.com.cn
  • 基金资助:

    四川省学术技术带头人培养基金项目;四川省留学人员基金项目;四川省川菜中心2008 年重点项目;四川省科技厅国际合作项目(2009HH0030)

Quality Inspection Method of Peanut Oil by Dielectric Properties during Heating and Storage

HE Chun-lei1,QIN Wen2,*,WANG Zheng2   

  1. (1. College of Horticulture, Sichuan Agricultural University, Ya an 625014, China;
    2. College of Food Science, Sichuan Agricultural University, Ya an 625014, China)
  • Received:2009-05-28 Online:2009-12-15 Published:2010-12-29
  • Contact: QIN Wen2,*, E-mail:Qinwen1967@yahoo.com.cn

摘要:

采用自制平行电极板检测花生油加热及贮存过程中介电特征值电容、电感和阻抗的变化情况,用国家标准分析方法测定其酸价、过氧化值、碘值、羰基价、皂化价5 种品质指标,分析花生油品质参数与介电参数之间的相关性。结果表明:花生油的介电特性参数电容、阻抗与电感值与其品质参数过氧化值、酸价及羰基价具有线性关系,其实际测量值与计算值的误差在允许范围内,用检测出的介电参数值计算花生油品质指标从理论上是可行的。

关键词: 花生油, 介电常数, 品质, 无损检测

Abstract:

Dielectric properties such as capacitance, inductance and impedance in peanut oil during heating or storage were measured using a parallel-plate electrode. Quality parameters such as acid value, peroxide value and carbonyl value of peanut oil were analyzed by GB methods. The correlation between quality and dielectric characteristics of peanut oil was also analyzed. Results indicated that a good linear relationship between quality and dielectric parameters of peanut oil during heating and longtime storage. The errors between actual measurements and predicted values were within the allowable range. Therefore, it is feasible to inspect the quality of peanut oils using dielectric parameters.

Key words: peanut oil, dielectric constant, quality, nondestructive inspection

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