牛宰后肌肉生物电阻抗值变化及其影响因素的研究  

On Changes and Effect Factors of Electrical Impedance Characteristic of Bovine Muscle

作　　者：刘慧燕[1] 方海田[1] 艳茹[2] 德力格尔桑[2] 

机构地区：[1]宁夏大学农学院,银川750021 [2]内蒙古农业大学食品科学与工程学院,呼和浩特010018

出　　处：《肉类研究》2007年第10期12-14,29,共4页Meat Research

基　　金：国家自然科学基金资助项目(30470440)

摘　　要：本试验用四电极法在多频(5-200KHz)条件下对宰后牛骨骼肌肉的电阻抗特性进行了初步的研究。发现牛骨骼肌生物电阻抗与肌肉纤维方向,电流信号频率和宰后肌肉所经历的阶段有关。横向电阻(沿垂直于骨骼肌纤维方向)大于纵向电阻(沿骨骼肌纤维方向),而且受电流信号频率的影响较明显,尤其是在5KHz～100KHz范围内。牛宰后生物电阻抗的变化与pH值的变化有一定的相关性。Under multi-frequency condition,electrical imped-ance characteristic of postmortem Bovine muscle was researched by four-electrode method. The result indicated that electrical impedance of the postmortem Bovine muscle was relates to the muscle fiber direction,the electric current signal frequency and the storage time.the transverse resistance was bigger than the longitudinal resistance, and was affected by the electric current signal frequency obviously.

关 键 词：牛骨骼肌 生物电阻抗值 影响因素 

分 类 号：TS251.1[轻工技术与工程—农产品加工及贮藏工程]