Effectiveness of Chemical and Thermal Treatments on Control Rhizopus stolonifer Fruit Infection Comparing Tomato Cultivars with Different Sensitivities to Cracking
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...
| Main Authors: | , , , , , |
|---|---|
| Format: | info:eu-repo/semantics/article |
| Language: | English |
| Published: |
MDPI
2020
|
| Subjects: | |
| Online Access: | http://hdl.handle.net/10835/7405 |
| _version_ | 1789406666603626496 |
|---|---|
| author | Alfaro Sifuentes, Liliana Juan Cazorla, Melchor Troncoso Rojas, Rosalba Meca, David Erick Elorrieta Jove, María Antonia Valenzuela Manjón-Cabeza, Juan Luis |
| author_facet | Alfaro Sifuentes, Liliana Juan Cazorla, Melchor Troncoso Rojas, Rosalba Meca, David Erick Elorrieta Jove, María Antonia Valenzuela Manjón-Cabeza, Juan Luis |
| author_sort | Alfaro Sifuentes, Liliana |
| collection | DSpace |
| description | 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, and therefore, were not sensitive to Rhizopus infection. The effectiveness of different washing treatments of tomato fruits depends on several factors; nonetheless, hot water treatment has been shown to be more effective than the use of chemical products such as commercial bleach or hydrogen peroxide. Another factor, the susceptibility of cultivars to cracking, determines the effectiveness of the washing treatment. The results provide an important basis for making decisions about the washing management of tomato fruits in packaging houses. |
| format | info:eu-repo/semantics/article |
| id | oai:repositorio.ual.es:10835-7405 |
| institution | Universidad de Cuenca |
| language | English |
| publishDate | 2020 |
| publisher | MDPI |
| record_format | dspace |
| spelling | oai:repositorio.ual.es:10835-74052023-04-12T19:00:16Z Effectiveness of Chemical and Thermal Treatments on Control Rhizopus stolonifer Fruit Infection Comparing Tomato Cultivars with Different Sensitivities to Cracking Alfaro Sifuentes, Liliana Juan Cazorla, Melchor Troncoso Rojas, Rosalba Meca, David Erick Elorrieta Jove, María Antonia Valenzuela Manjón-Cabeza, Juan Luis cracking cultivars tomato washing treatments 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, and therefore, were not sensitive to Rhizopus infection. The effectiveness of different washing treatments of tomato fruits depends on several factors; nonetheless, hot water treatment has been shown to be more effective than the use of chemical products such as commercial bleach or hydrogen peroxide. Another factor, the susceptibility of cultivars to cracking, determines the effectiveness of the washing treatment. The results provide an important basis for making decisions about the washing management of tomato fruits in packaging houses. 2020-01-16T12:14:37Z 2020-01-16T12:14:37Z 2019-08-01 info:eu-repo/semantics/article 1660-4601 http://hdl.handle.net/10835/7405 en https://www.mdpi.com/1660-4601/16/15/2754 Attribution-NonCommercial-NoDerivatives 4.0 Internacional http://creativecommons.org/licenses/by-nc-nd/4.0/ info:eu-repo/semantics/openAccess MDPI |
| spellingShingle | cracking cultivars tomato washing treatments Alfaro Sifuentes, Liliana Juan Cazorla, Melchor Troncoso Rojas, Rosalba Meca, David Erick Elorrieta Jove, María Antonia Valenzuela Manjón-Cabeza, Juan Luis Effectiveness of Chemical and Thermal Treatments on Control Rhizopus stolonifer Fruit Infection Comparing Tomato Cultivars with Different Sensitivities to Cracking |
| title | Effectiveness of Chemical and Thermal Treatments on Control Rhizopus stolonifer Fruit Infection Comparing Tomato Cultivars with Different Sensitivities to Cracking |
| title_full | Effectiveness of Chemical and Thermal Treatments on Control Rhizopus stolonifer Fruit Infection Comparing Tomato Cultivars with Different Sensitivities to Cracking |
| title_fullStr | Effectiveness of Chemical and Thermal Treatments on Control Rhizopus stolonifer Fruit Infection Comparing Tomato Cultivars with Different Sensitivities to Cracking |
| title_full_unstemmed | Effectiveness of Chemical and Thermal Treatments on Control Rhizopus stolonifer Fruit Infection Comparing Tomato Cultivars with Different Sensitivities to Cracking |
| title_short | Effectiveness of Chemical and Thermal Treatments on Control Rhizopus stolonifer Fruit Infection Comparing Tomato Cultivars with Different Sensitivities to Cracking |
| title_sort | effectiveness of chemical and thermal treatments on control rhizopus stolonifer fruit infection comparing tomato cultivars with different sensitivities to cracking |
| topic | cracking cultivars tomato washing treatments |
| url | http://hdl.handle.net/10835/7405 |
| work_keys_str_mv | AT alfarosifuentesliliana effectivenessofchemicalandthermaltreatmentsoncontrolrhizopusstoloniferfruitinfectioncomparingtomatocultivarswithdifferentsensitivitiestocracking AT juancazorlamelchor effectivenessofchemicalandthermaltreatmentsoncontrolrhizopusstoloniferfruitinfectioncomparingtomatocultivarswithdifferentsensitivitiestocracking AT troncosorojasrosalba effectivenessofchemicalandthermaltreatmentsoncontrolrhizopusstoloniferfruitinfectioncomparingtomatocultivarswithdifferentsensitivitiestocracking AT mecadaviderick effectivenessofchemicalandthermaltreatmentsoncontrolrhizopusstoloniferfruitinfectioncomparingtomatocultivarswithdifferentsensitivitiestocracking AT elorrietajovemariaantonia effectivenessofchemicalandthermaltreatmentsoncontrolrhizopusstoloniferfruitinfectioncomparingtomatocultivarswithdifferentsensitivitiestocracking AT valenzuelamanjoncabezajuanluis effectivenessofchemicalandthermaltreatmentsoncontrolrhizopusstoloniferfruitinfectioncomparingtomatocultivarswithdifferentsensitivitiestocracking |