Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1, Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan; College of Pharmacy and Biological Engineering, Chengdu University, Chengdu, Sichuan 610106, China; College of Food Sciences, Sichuan Agricultural University, Yucheng District, Ya'an, Sichuan, China.
Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1, Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan.
Food Chem. 2018 Oct 30;264:419-426. doi: 10.1016/j.foodchem.2018.05.029. Epub 2018 May 4.
A hyperspectral imaging (HSI) system (380-1000 nm) was investigated for non-invasively estimating adenosine triphosphate (ATP) content in ready-to-eat sausages during 5 days storage at 35 °C. A set of pretreated combinations were carried out on preprocessing the spectra to improve the performance of partial least squares regression (PLSR). According to the regression coefficient values, ten important wavelengths (385, 390, 395, 505, 580, 670, 745, 780, 855, and 955 nm) were selected in this study. PLSR models developed using full wavelengths and optimal wavelengths showed the prediction coefficient of determination (r) up to 0.8324 and 0.8606, respectively. The concentration and location of the ATP content in sausages were for the first time displayed via chemical imaging developed by R statistics. Combining HSI and multivariate analysis can quantify and visualize ATP dynamic changes during storage and a great potential in the processed meat industry for real-time inspection.
研究了一种高光谱成像（HSI）系统（380-1000nm），用于在 35°C 下储存 5 天期间非侵入式估计即食香肠中的三磷酸腺苷（ATP）含量。通过预处理光谱来执行一组预处理组合，以提高偏最小二乘回归（PLSR）的性能。根据回归系数值，本研究选择了十个重要波长（385、390、395、505、580、670、745、780、855 和 955nm）。使用全波长和最佳波长开发的 PLSR 模型分别显示了高达 0.8324 和 0.8606 的预测决定系数（r）。通过 R 统计开发的化学成像首次显示了香肠中 ATP 含量的浓度和位置。HSI 与多元分析相结合，可以定量和可视化储存过程中 ATP 的动态变化，在加工肉类行业具有实时检查的巨大潜力。
