Effectiveness of Chemical and Thermal Treatments on Control Rhizopus Stolonifer Fruit Infection Comparing Tomato Cultivars with Different Sensitivities to Cracking

International Journal of Environmental Research and Public Health
Liliana Alfaro-SifuentesJuan Luis Valenzuela

Abstract

Tomatoes are among the most important horticultural crops; however, it is estimated that 30% of tomato yield is lost due to postharvest rot due to Rhizopus stolonifer, a fungus which requires lesions to initiate the infectious process. Tomato fruit cracking is a physiopathy which causes significant economic losses, since cracking is the door used by the fungus. In this experiment, 14 cultivars of tomato of different types were used. Fruit sampling was carried out in the middle of the crop cycle, coinciding with the peak of yield; then, the fruits were divided into two groups: one group was inoculated with Rhizopus in order to assess the effectiveness of washing, whilst the other was treated with sterile water. The fruits of each group were divided into lots to be treated with six washing treatments: dipping in hot water at 20, 40 and 60 °C for 20 s; the fruits were then sprayed with the following solutions: 0.6% of Hydrogen Peroxide 23% + Peracetic acid 15%; commercial bleach at 0.5% and 2% of Hydrogen Peroxide 50%. The control sample was not washed. The results show that there was an influence of cultivar on fruit cracking, which was strongly related with Rhizopus infection. Three cultivars were not susceptible to cracking, an...Continue Reading

References

Mar 1, 2005·American Journal of Botany·Antonio J MatasAntonio Heredia
May 16, 2012·Physiologia Plantarum·Eva DomínguezJesús Cuartero
May 7, 2014·Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences·P V MahajanM Geyer
Oct 27, 2017·Critical Reviews in Food Science and Nutrition·Asgar AliMohammed Wasim Siddiqui
Jun 28, 2019·Frontiers in Plant Science·Isabel LaraEva Domínguez

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Citations

Jan 29, 2021·Indian Journal of Microbiology·Arely Nohemí López-AnchondoNorma Margarita De la Fuente-Salcido

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Methods Mentioned

BETA
chemical treatments
thermal treatments

Software Mentioned

Coexphal
STATGRAPHICS

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