Sebze ve meyvelerde hasat sonrası kayıpların önlenmesinde alternatif bir uygulama: UV-C

Abstract

Meyve ve sebzelerde, gelişmiş ülkelerde %25 ve gelişmekte olan ülkelerde %50 oranında olan hasat sonrası kayıpların önlenmesinde yoğun olarak fungusitler kullanılmaktadır. Ancak fungusit kalıntılarının insan sağlığı ve özellikle de çocuklar üzerinde olumsuz etkileri bulunmaktadır. Dolayısıyla araştırıcılar, hasat sonrası hastalıkların konrol edilmesinde kimyasal pestisitlere alternatif yöntemler üzerinde çalışmaktadır. Bu yöntemlerden ultraviyole-C ışınlaması UV-C, 200-280 nm dalgaboyu hasat sonrası çürümelerin kontrolünde olumlu sonuçlar vermektedir. Özellikle 254 nm dalgaboyundaki ultraviyole uygulamaları hafif stres tepkisi oluşturarak ürünün hasat sonrası dayanımını arttırmaktadır

Keywords

• Ultraviyole-C ışınlaması
• meyve
• sebze
• hasat sonrası
• çürüme

An Alternative Treatment of Reduction of Postharvest Losses in Fruits and Vegetables: UV-C

Abstract

A heavy reliance on synthetic fungicides has been necessary to control postharvest decay of produce, which results in about a 25% loss of fruit and vegetables in the developed countries. These losses can exceed 50% in developing countries. Fungicide residues have been found to pose a potential health threat to the consumer, and particularly to children. Because of this problem, researchers have attempted to fid alternatives to chemical pesticides for controlling postharvest diseases of horticultural products. Among the alternative methods used for controlling decay, ultraviolet-C irradiation UV-C, 200-280 nm wavelength offers interesting possibilities. UV treatment, especially with radiation at 254 nm, can cause weak stres responses, often associated with the phenomenon of inducible pathogen resistance

Keywords

• Ultraviolet-C irradiation
• fruit
• vegetables
• postharvest
• decay

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