Non-destructive prediction of apple SSC/TAC and firmness based on multilayer autoencoder and multilayer perceptron

Intelligence & Robotics, Journal Year: 2025, Volume and Issue: 5(1), P. 181 - 201

Published: Feb. 25, 2025

The physical and biochemical indices of apple fruit serve as crucial phenotypic parameters in genomic cultivation. Among them, the soluble solids content (SSC), titratable acid (TAC), firmness are three most paramount that directly reflect inner quality apples. To achieve a more accurate prediction internal physicochemical indicators, novel non-destructive detection approach fused with nonlinear multi-features using multilayer autoencoder (MAE) was proposed. For dielectric spectrum device employed to gather electrical 300 Fuji sample These measurements were taken at nine distinct frequencies, spanning from 0.158 3,980 kHz. normal control group for validation, precisely detect its parameters, special analysis apparatuses utilized collect data on firmness, SSCs, TACs. predict key such SSC/TAC, classical regression models implemented subject comprehensive analysis. experimental results reveal feature variable selection based MAE perceptron (MLP) achieved best performance. Specifically, correlation coefficients (R 2) predicting SSC/TAC reached up 0.88 0.82, respectively, root mean square errors (RMSEs) 0.66 2.08. Regarding state-of-the-art dimensionality reduction, can be validated extraction methodology complex parameters. It demonstrates robust applicability diverse array other

Language: Английский

An Assessment of the Freshness of Fruits and Vegetables Through the Utilization of Bioimpedance Spectroscopy (BIS)—A Preliminary Study

Foods, Journal Year: 2025, Volume and Issue: 14(6), P. 947 - 947

Published: March 11, 2025

This study evaluates the use of bioimpedance spectroscopy (BIS) as a non-invasive method to assess freshness fruits and vegetables by measuring impedance, its components, phase angle. Over nine days, three (potato, pumpkin, red pepper) two (apple banana) were assessed using Analog Discovery 3 device, covering frequency range 50 Hz 1 MHz. The results showed consistent decrease in impedance an increase angle during ripening, with statistical significance observed for pumpkin potato (p < 0.05). findings confirm BIS effective, objective, non-destructive alternative traditional chemical methods monitoring freshness, despite challenges such structural damage pepper. integration into food quality assessment healthcare provides multidisciplinary approach improving nutrition health.

Language: Английский

Bioimpedance Analysis of Cucumber Plants Exposed to Different Nitrogen Doses Under Greenhouse Conditions

Sensors, Journal Year: 2025, Volume and Issue: 25(8), P. 2486 - 2486

Published: April 15, 2025

Nitrogen (N) availability is critical for cucumber (Cucumis sativus L.) growth and yield in greenhouse production. In this study, we investigated the effects of different N doses on bioimpedance spectroscopy (BIS) parameters plants (ES.22.17 F1 genotype), focusing extracellular fluid resistance (R1), intracellular (R2), vacuole (R4), cell membrane capacitances (Cm, Ct). The results showed that low supply significantly increased R1 reduced Cm leaves, indicative decreased nitrate (NO3−) concentration impaired fluidity. Higher lowered capacitance, reflecting improved ion transport storage efficiency. A strong positive correlation was observed between total NO3− content (r = 0.9), while negatively correlated with (R1, r −0.8) (R4, −0.9). optimal associated values 47,121.07–52,953.93 Ω, R4 0.348–0.529 3.149 × 10⁻10–3.781 10⁻10 F. These BIS high sensitivity to plant status, highlighting as a promising, minimally invasive technique real-time nutrient monitoring. By integrating data horticultural best practices, growers can refine fertilization strategies better resource efficiency potentially higher yields fruit quality.

Language: Английский