【摘要】 研究鲜肉深层水分的快速、无损检测方法,并用于鲜肉深层水分检测仪器的研制,具有很重要的现实意义,也是市场迫切的需求。以猪鲜肉为样品,采用近红外离散式光源,应用基于稳态空间分辨方法的漫反射方式解决了检测深度问题,测量鲜肉水分含量,得到了比较好的实验结果,r均达到0.90以上。用变异系数calculation of coefficient of variability(CV)和组内相关系数intra class correlation(ICC)检验测量的可靠性,CV≤5%,ICC达到0.83,表明方法稳定可靠。更多还原

【Abstract】 A method was established to determine water content of fresh meat in deep layer based on NIRS diffusion reflectance spectroscopy by using LEDs.The experimental apparatus was established to investigate internal water content with repeated experiments for pork and mince pork;the water concentration and the water content detected by standard method is linear,and the r2 is larger than 0.90.Calculation of coefficient of variability(CV) and intra class correlation(ICC) procedures were applied to assess test-retest reliability of this measuring method.The CV and ICC values were found to be good(CV≤5%;ICC=0.83).The experimental result indicated that the fast non-invasive measurement method for detecting water content in deep layer of fresh meat based on spatially-resolved spectroscopy was feasible.更多还原