Improvement of microwave treatment with immersion of fruit in water to control brown rot in stone fruit
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Monilinia spp. are the most important cause of brown rot in stone fruit. Currently, no chemical fungicides are allowed in the European Union to be applied in stone fruit after harvest. Microwave (MW) treatments at 20 kW with fruit immersed in water at 40 °C for 50 or 60 s were selected as effective conditions to control brown rot without affecting the appearance of the fruit. The efficacy of the treatments was analyzed on fruit with different weights and at various infection times and inoculum concentrations. When the MW treatment was applied for 50 s, brown rot control was significantly higher for smaller fruit in comparison with larger fruit and MW efficacy decreased with increasing time between inoculation and treatment from 0 or 24 h to 48 h and inoculum concentration from 103 to 105 conidia mL− 1. When the treatment time was increased to 60 s, a better control of brown rot was observed and, in general, none of the studied factors had a significant effect on the efficacy of the treatment. MW treatments were also evaluated on naturally infected fruit; brown rot incidence was significantly reduced to less than 43% when MW treatment was applied for 50 s and to less than 7% when applied for 60 s.
Is part ofInnovative Food Science & Emerging Technologies, 2014, vol. 26, p. 168-175
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Sisquella Sanagustín, María; Viñas Almenar, Inmaculada; Teixidó i Espasa, Neus; Picouet, P.; Usall i Rodié, Josep (Elsevier B.V., 2013)Monilinia spp. are the most important causes of brown rot in stone fruit and no chemical fungicides are allowed in the European Union to be applied to stone fruit after harvest. From preliminary studies, microwave (MW) ...
Combination of peracetic acid and hot water treatment to control postharvest brown rot on peaches and nectarines Sisquella Sanagustín, María; Casals Rosell, Carla; Viñas Almenar, Inmaculada; Teixidó i Espasa, Neus; Usall i Rodié, Josep (Elsevier B.V., 2013)Brown rot caused by Monilinia spp. is the most important postharvest disease of stone fruit. From preliminary studies, the combination of 0.25% hydrogen peroxide, 0.02% peracetic acid (PAA) and 0.075% acetic acid, corresponding ...
Relevance of the main postharvest handling operations on the development of brown rot disease on stone fruits Bernat Martínez, Maria Dolores; Segarra Bofarull, Joan; Casals Rosell, Carla; Teixidó i Espasa, Neus; Torres Sanchis, Rosario; Usall i Rodié, Josep (WileySociety of Chemical Industry, 2017)BACKGROUND Brown rot caused by Monilinia spp. is one of the most important postharvest diseases of stone fruit. The aim of this study was to evaluate the relevance of the main postharvest operations of fruit – hydrocooling, ...