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Light-Emitting Diode [LED]-Driven Mechanisms for Postharvest Decay Control and Functional Quality Improvement in
Adejoke O Obajuluwa1, Dharini Sivakumar1,2
1Phytochemical Food Network Research Group, Department of Crop Sciences, Faculty of Science, Tshwane University of Technology, Pretoria 0001, South Africa.
Light-emitting diode (LED) technology offers a sustainable, residue-free method to control fungal decay in fruits and vegetables. This review explores how specific light wavelengths activate plant defenses and enhance nutritional quality, reducing postharvest losses.
Area of Science:
- Agricultural Science
- Plant Pathology
- Food Science
Background:
- Postharvest fungal decay causes significant global food losses.
- Synthetic fungicides raise environmental and health concerns, driving the need for alternatives.
- Light-emitting diode (LED) technology presents a novel approach to postharvest management.
Purpose of the Study:
- To review the mechanisms of LED-induced control of fungal decay in produce.
- To synthesize findings on how LED treatments modulate plant defense pathways.
- To explore LED's role in enhancing fruit and vegetable nutritional quality and health benefits.
Main Methods:
- Comprehensive literature review of recent studies on LED technology in postharvest applications.
- Analysis of research investigating LED-induced physiological and molecular responses in fruits and vegetables.
- Synthesis of data on pathogen-fruit interactions under LED treatment.
Main Results:
- LED treatments modulate pathogen-fruit interactions, inhibiting fungal growth.
- Specific light wavelengths activate innate plant defense pathways and gene networks.
- LED exposure enhances nutritional content and health benefits of fruits and vegetables.
Conclusions:
- LED technology is a promising sustainable alternative to synthetic fungicides for postharvest decay control.
- Understanding LED-induced defense mechanisms can optimize its application for improved produce quality.
- Further research is needed to fully elucidate the molecular basis of LED effects on plant defense and nutrition.
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