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Related Experiment Video

Updated: Nov 9, 2025

Fruit Volatile Analysis Using an Electronic Nose

Fruit Volatile Analysis Using an Electronic Nose

Published on: March 30, 2012

Non-destructive methods for fruit quality evaluation.

Ana-Maria Bratu¹, Cristina Popa², Mihaela Bojan²

¹National Institute for Laser, Plasma and Radiation Physics, 409 Atomistilor St., PO Box MG-36, 077125, Bucharest, Romania. ana.magureanu@inflpr.ro.

Scientific Reports

|April 9, 2021

Summary

This summary is machine-generated.

This study used laser photoacoustic spectroscopy and multispectral imaging to monitor apple degradation during storage. These non-invasive methods assess apple quality by tracking internal gases and external appearance, improving storage and sorting.

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Area of Science:

Agricultural Science
Food Science
Spectroscopy

Background:

Maintaining apple quality during long-term storage is crucial for reducing food waste.
Assessing apple degradation non-invasively is essential for efficient sorting and quality control.

Purpose of the Study:

To investigate the temporal evolution of apple quality during storage.
To evaluate non-invasive techniques for assessing apple degradation and improving storage maintenance.

Main Methods:

Laser photoacoustic spectroscopy was employed to detect ethylene and ethanol in the internal apple atmosphere.
Multispectral imaging was utilized to capture combined image and spectral data for ripening and defect analysis.

Main Results:

Ethylene levels decreased while ethanol levels increased during apple storage, indicating degradation.
Degradation correlated with a shift towards darker tones in multispectral images.
Non-invasive inspection identified the onset of degradation in real-time.

Conclusions:

Combined spectroscopic and imaging techniques effectively monitor apple degradation.
Real-time, non-invasive assessment enhances apple sorting and quality maintenance during storage.
Understanding degradation markers improves long-term apple storability.