Effect of different light spectra from light-emitting diodes (LEDs) on the postharvest quality of vegetables and fruits. A Review

Document Type : Review Article

Authors

1 Photosynthesis Laboratory, Department of Horticulture, College of Agricultural Technology (Aburaihan), University of Tehran, Pakdasht, Tehran, Iran and Controlled Environment Agriculture Center, College of Agricultural Technology

2 Institute of Biochemistry and Genetics, Ufa Federal Research Center RAS, 450054 Ufa, pr. Oktyabrya 71, Russia

Abstract
The postharvest quality of vegetables and fruits is significantly influenced by environmental factors, including light exposure. Light-emitting diodes (LEDs) offer a versatile tool for manipulating light spectra to enhance the preservation and quality of produce. This review examines the impact of different LED light spectra on the postharvest quality of vegetables and fruits. The research problem addressed is the optimization of LED lighting conditions to extend shelf life and maintain nutritional and aesthetic qualities of produce. The methodology involved a comprehensive analysis of existing literature on the effects of various LED light spectra, including red, blue, green, ultraviolet and combinations thereof, on postharvest attributes such as color, texture, and nutrient retention. Key findings indicate that specific LED spectra can delay senescence, reduce spoilage, and enhance antioxidant content in certain produce types. For instance, red light often promotes ethylene production, while blue light can suppress microbial growth. The main conclusions highlight the potential of tailored LED lighting strategies to improve postharvest management practices. These findings have significant implications for the development of more efficient storage and transportation systems, potentially reducing food waste and enhancing consumer satisfaction. Future research directions include exploring the molecular mechanisms underlying light-induced responses in produce and integrating LED technology into commercial postharvest handling systems. Overall, this review underscores the importance of light spectrum optimization in maintaining the quality and extending the shelf life of vegetables and fruits, contributing to a more sustainable food supply chain.

Keywords


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Volume 1, Issue 4
Autumn 2024
Pages 73-92

  • Receive Date 11 December 2024
  • Accept Date 18 December 2024
  • First Publish Date 18 December 2024
  • Publish Date 01 December 2024