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The Storage Period Discrimination of Bolete Mushrooms Based on Deep Learning Methods Combined With Two-Dimensional Correlation Spectroscopy and Integrative Two-Dimensional Correlation Spectroscopy

文献类型： 外文期刊

作者： Dong, Jian-E 1 ; Zhang, Ji 2 ; Li, Tao 3 ; Wang, Yuan-Zhong 2 ;

作者机构： 1.Southwest Forestry Univ, Coll Big Data & Intelligence Engn, Kunming, Yunnan, Peoples R China

2.Yunnan Acad Agr Sci, Med Plants Res Inst, Kunming, Yunnan, Peoples R China

3.Yuxi Normal Univ, Coll Chem Biol & Environm, Yuxi, Peoples R China

关键词： bolete; two-dimensional correlation spectroscopy (2DCOS); deep learning; residual convolutional neural network (ResNet); storage period

期刊名称：FRONTIERS IN MICROBIOLOGY （ 影响因子：6.064； 五年影响因子：6.843 ）

ISSN：

年卷期： 2021 年 12 卷

页码：

收录情况： SCI

摘要： Boletes are favored by consumers because of their delicious taste and high nutritional value. However, as the storage period increases, their fruiting bodies will grow microorganisms and produce substances harmful to the human body. Therefore, we need to identify the storage period of boletes to ensure their quality. In this article, two-dimensional correlation spectroscopy (2DCOS) images are directly used for deep learning modeling, and the complex spectral data analysis process is transformed into a simple digital image processing problem. We collected 2,018 samples of boletes. After laboratory cleaning, drying, grinding, and tablet compression, their Fourier transform mid-infrared (FT-MIR) spectroscopy data were obtained. Then, we acquired 18,162 spectral images belonging to nine datasets which are synchronous 2DCOS, asynchronous 2DCOS, and integrative 2DCOS (i2DCOS) spectra of 1,750-400, 1,450-1,000, and 1,150-1,000 cm(-1) bands. For these data sets, we established nine deep residual convolutional neural network (ResNet) models to identify the storage period of boletes. The result shows that the accuracy with the train set, test set, and external validation set of the synchronous 2DCOS model on the 1,750-400-cm(-1) band is 100%, and the loss value is close to zero, so this model is the best. The synchronous 2DCOS model on the 1,150-1,000-cm(-1) band comes next, and these two models have high accuracy and generalization ability which can be used to identify the storage period of boletes. The results have certain practical application value and provide a scientific basis for the quality control and market management of bolete mushrooms. In conclusion, our method is novel and extends the application of deep learning in the food field. At the same time, it can be applied to other fields such as agriculture and herbal medicine.

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