Nondestructive detection of peanuts mildew based on hyperspectral image technology and machine learning algorithm

Abstract

In order to realize the rapid nondestructive detection of mildew peanut in the process of peanuts storage, hyperspectral imaging technology was proposed to detect mildew peanut. A total of 200 peanuts were selected from 5 kinds of peanuts purchased in the market for moldy treatment, and the remaining 400 peanuts were kept sterile. After completion, samples were collected with a hyperspectral instrument to obtain spectral data of the samples. According to the characteristics of the data, 10 pre-processing algorithms were used to de-noise the data, and Median Filtering (MF) had the best effect, with the recognition accuracy reaching 97.7%. GBDT, LightGBM, CatBoost and XGBoost algorithms were used to extract important feature bands in the spectral data pre-processed by MF. GBDT, LightGBM, CatBoost and XGBoost algorithms were used to model the extracted feature bands. The results showed that LightGBM is the best algorithm with a detection rate of 99.10%. Optuna algorithm was used to tune its parameters. Compared with the previous model, the running time of the optimized model was improved by about 0.25 s. The results showed that hyperspectral imaging provides an efficient and nondestructive method for detecting mildew in peanut storage.

Honey quality detection based on near-infrared spectroscopy

“…Hyperspectral imaging technology has been applied in many fields, such as peanut (Zou et al, 2022b) germination prediction (Zou et al, 2022c), mildew detection (Zou et al, 2022a), hot pot (Zou et al, 2023) oil detection (Zou et al, 2022d), fruit grading (Zou et al, 2021), etc. Using physical and chemical methods to judge the quality of honey (Kek et al, 2017;Wan et al, 2018), the results are often very accurate (Shamsudin et al, 2019).…”

Inhibitory activity of Gypensapogenin D against α-glucosidase and preparation of its liposomes

“…Peanut, as a main oilseed crop in the world, is a rich source of dietary protein and culinary oil, playing an important role in animal and human nutrition (Settaluri et al, 2012;Zou et al, 2022c). Scientific research shows that peanuts have anti-cancer, antioxidant, anti-inflammatory and other biological properties (Zou et al, 2022a). Peanut is susceptible to contamination by heavy metals, which hurts the healthy development of the peanut industry in China.…”