Non-destructive analysis of the moisture content in shiitake mushrooms (Lentinula edodes) using near-infrared imaging at 1450?nm
Non-destructive analysis of the moisture content in shiitake mushrooms (Lentinula edodes) using near-infrared imaging at 1450?nm
复制标题
使用 1450 nm 近红外成像对香菇 (Lentinula edodes) 中的水分含量进行无损分析
DOI：
10.1016/j.myc.2020.04.005
复制
发表时间：
2020
期刊：
影响因子：
1.4
通讯作者：
Suzuki Tomohiro
中科院分区：
文献类型：
--
作者：
Shinoda Kazuma;Konno Naotake;Suzuki Tomohiro
水分含量是影响香菇新鲜度的重要因素。在这项研究中，我们开发了一个简单的预测方法，香菇的MC使用近红外（NIR）成像在1450 nm处，在1450 nm的频带是强烈相关的OH基团。首先，通过具有1450 nm带通滤波器的InGaAs传感器捕获NIR图像;然后使用在1100 nm处拍摄的图像校准捕获的图像，以去除蘑菇的阴影和形状效应。采用烘干法测定了香菇菌盖表面和菌腮表面的实际含水量，并分别绘制了校准曲线。相关系数大于0.85，标准误差在3.1%~ 8.2%之间。使用构建的校准曲线的非破坏性的MC图像进行量化，实验结果表明，持水性能的差异可以可视化超过6小时，每一方使用我们的方法。
Moisture content (MC) is an important factor in the freshness of shiitake mushrooms (Lentinula edodes). In this study, we developed a simple prediction method for MC of shiitake mushrooms using nearinfrared (NIR) imaging at 1450 nm, as the band at 1450 nm is strongly correlated with OH groups. First, a NIR image was captured by an InGaAs sensor with a bandpass filter of 1450 nm; the captured image was then calibrated using an image taken at 1100 nm to remove shade and shape effects of mushrooms. The actual MC of shiitake mushrooms was measured using an oven-drying method, and a calibration curve was obtained for the cap surface and the gill side, respectively. The correlation coefficient reached more than 0.85, and the standard error of calibration ranged from 3.1% to 8.2%. Nondestructive MC images were quantified using the constructed calibration curves, and the experimental results showed that differences in the water-holding property can be visualized over 6 h for each side using our method.