HUANG Yan-fa,ZHANG Yao,ZHU Yan-zhe,TIAN Yu,ZHANG Yi-yang,WU Long-guo.A Study on Non-destructive Detection of GABA Content in Cherry Tomatoes Based on Deep Learning[J].Journal of Instrumental Analysis,2025,44(12):2554-2563.
HUANG Yan-fa,ZHANG Yao,ZHU Yan-zhe,TIAN Yu,ZHANG Yi-yang,WU Long-guo.A Study on Non-destructive Detection of GABA Content in Cherry Tomatoes Based on Deep Learning[J].Journal of Instrumental Analysis,2025,44(12):2554-2563. DOI: 10.12452/j.fxcsxb.250411283.
A Study on Non-destructive Detection of GABA Content in Cherry Tomatoes Based on Deep Learning
This study established a rapid,non-destructive approach for quantifying
γ
-aminobutyric acid(GABA) in cherry tomatoes by coupling near-infrared hyperspectral imaging with deep learning. Five cultivars(
n
=500) from Ningxia and Shandong,China,were analyzed. The sample set was partitioned into calibration and prediction subsets using sample set partitioning based on joint X-Y distance(SPXY);spectra(900-1 700 nm) were preprocessed by detrending,and informative wavelengths were selected via iteratively retaining informative variable(IRIV). Four architectures—convolutional neural network(CNN),recurrent convolutional neural network(RCNN),group convolutional neural network(GCNN),and parallel convolutional neural network(PCNN)—were constructed and compared. The IRIV-based GCNN delivered the best prediction,achieving a correlation coefficient of prediction(
R
P
) of 0.896 and a root mean square error of prediction(RMSEP) of 3.022 μmol/g,outperforming the alternative models. Maps generated with the optima
l model revealed pronounced spatial heterogeneity of GABA among cultivars. Overall,integrating NIR-HSI with deep learning enables efficient and accurate non-destructive detection of GABA in cherry tomatoes,supporting rapid grading and large-scale monitoring of functional quality.
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