مقایسه کارایی پرتو گاما، تیمار پلاسمای سرد و پرتو فرابنفش در کنترل بیماری های پس از برداشت میوه توت فرنگی

Strawberry has a limited shelf life owing to pathogenic agent contamination after harvest, around half of the nation's strawberry fruit production is lost during the harvest and shipping phases. Due to the strawberry's juicy texture, thin cell wall, high sugar content, and acidity, this product has a variety of post-harvest contaminations.The agents of post-harvest strawberry fruit diseases in Mazandaran province were first identified on the product's surface. Next, natural fungi from strains of Botrytis cinerea ، Alternata tenuissima,Rhizopus stolonifer Aspergillus niger and Penicillium expansum were identified in the culture medium as they were separated separately. Lastly, the effect of treatment with various doses of gamma radiation (1500, 1250, 1000, 750, and 2000Gy), treatment with atmospheric cold plasma at a voltage of 100 volts in time intervals (90, 45, and 150 seconds), and treatment with ultraviolet rays (3 and 5) minutes were investigated on strawberry fungal infections.The outcomes shown that, whilst cold plasma therapy and UV light treatment may only lower the number of strawberry fungal infections by decontaminating their surface, gamma radiation within the dose range of 1250 and 1500 Gy can eradicate all strawberry fungal infections. Because Alternata tenuissima has the biggest spore and the most pigment in its spore, it is the strawberry fungus strain that is most resistant to gamma. The fungus strain that proved most susceptible to gamma radiation was Penicillium expansum. The study's findings demonstrate the great effectiveness of gamma radiation in strawberry fruit decontamination when compared to alternative techniques.